Body Electrical System - BE4 BODY ELECTRICAL SYSTEM POWER...

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Unformatted text preview: BE4 BODY ELECTRICAL SYSTEM POWER SOURCE POWER SOURCE PARTS LOCATION BE10N07 BE5 BODY ELECTRICAL SYSTEM POWER SOURCE BE6 BODY ELECTRICAL SYSTEM POWER SOURCE BE7 BODY ELECTRICAL SYSTEM POWER SOURCE BE8 BODY ELECTRICAL SYSTEM POWER SOURCE JUNCTION BLOCK NO.1 INSPECTION BE03N06 BE9 BODY ELECTRICAL SYSTEM POWER SOURCE 1. Fuse Tester connection to terminal number (Condition) Specified condition MIRHTR TAIL 1Ground (Ignition switch ON) 3Ground (Ignition switch ON) 6Ground (Constant) Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage SRS PANEL 8Ground (Ignition switch ON) WIPER TURN CIG 10Ground (Ignition switch ON) 12Ground (Ignition switch ON) 16Ground (Ignition switch ACC or ON) 17Ground (Ignition switch ON) 19Ground (Ignition switch ON) 22Ground (Ignition switch ON) 23Ground (Ignition switch ON) 26Ground (Constant) 28Ground (Constant) ECUIG GAUGE STOP SEAT HTR DEFOG POWER INSPECT FUSE CIRCUIT Remove the fuse from the junction block and inspect the connector on junction block side, as shown. 2. If the circuit is not as specified, inspect the circuits connected to other parts. INSPECT RELAY CIRCUIT Remove the relay from the junction block and inspect the connector on junction block side, as shown. Specified condition Battery positive voltage Battery positive voltage Relay Defogger Taillight Control Tester connection to terminal number (Condition) 1Ground (Ignition switch ON) 1Ground (Constant) If the circuit is not as specified, inspect the circuits connected to other parts. BE10 BODY ELECTRICAL SYSTEM POWER SOURCE JUNCTION BLOCK NO.2 INSPECTION BE03P08 BE11 BODY ELECTRICAL SYSTEM POWER SOURCE 1. INSPECT FUSE CIRCUIT Remove the fuse from the junction block and inspect the connector on junction block side, as shown. Specified condition Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Fuse RDI FAN HEAD (LHLWR) HEAD (RHLWR) HEAD (LH) (USA) (CANADA) HEAD (RH) (USA) HEAD (RH UPR) (RHUPR) (CANADA) ABS 2 MAIN IG2 RADIO No.1 EFI HAZ. HORN TEL AM2 ALT ECUB DOME TRC DRL FOT ALT ABS1 HEATER AM1 Tester connection to terminal number (Condition) 2Ground (Engine Running) 4Ground (Light control switch TAIL or HEAD) 6Ground (Light control switch TAIL or HEAD) 8Ground (Light control switch TAIL or HEAD) 8Ground (Light control switch TAIL or HEAD and Engine running) 10Ground (Light control switch TAIL or HEAD) 10Ground (Light control switch TAIL or HEAD and Engine running) 11Ground (Constant) 13Ground (Constant) 15Ground (Constant) 17Ground (Constant) 19Ground (Constant) 21Ground (Constant) 23Ground (Constant) 25Ground (Constant) 27Ground (Constant) 29Ground (Constant) 31Ground (Constant) 33Ground (Constant) 36Ground (Constant) 38Ground (Constant) 40Ground (Constant) 42Ground (Constant) 44Ground (Constant) 46Ground (Constant) Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage If the circuit is not as specified, inspect the circuits connected to other parts. BE12 DRL NO. 3 HTR ABS SOL RED FAN MAIN AC COMP IG2 RDIFAN ST HLP HLP DRL No. 2 ABS MTR TRAC MTR Horn MAIN Relay BODY ELECTRICAL SYSTEM 62Ground (Constant) 58Ground (Constant) 52Ground (Constant) 43Ground (Constant) 38Ground (Constant) 33Ground (Constant) 29Ground (Constant) 25Ground (Constant) 24Ground (Constant) 22Ground (Constant) 16Ground (Constant) 14Ground (Constant) 10Ground (Constant) 17Ground (Constant) 4Ground (Constant) Tester connection to terminal number (Condition) 2. INSPECT RELAY CIRCUIT POWER SOURCE If the circuit is not as specified, inspect the circuits connected to other parts. Remove the relay from the junction block and inspect the connector on junction block side, as shown. Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Specified condition BE13 BODY ELECTRICAL SYSTEM POWER SOURCE RELAY BLOCK NO.6 INSPECTION BE03T09 1. INSPECT FUSE CIRCUIT Remove the fuse from the relay block and inspect the connector on relay block side, as shown. Specified condition Fuse Tester connection to terminal number (Condition) Turn Signal Flasher Turn Signal Flasher Fog Light 1Ground (Light switch ON) 2Ground (Light switch ON) 3Ground (Constant) Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Daytime Running Light Daytime Running Light Power window 1Ground (Light switch HEAD or Engine running) 4Ground (Light switch HEAD or Engine running) 3Ground (Constant) If the circuit is not as specified, inspect the circuits connected to other parts. BE14 BODY ELECTRICAL SYSTEM IGNITION SWITCH IGNITION SWITCH PARTS LOCATION BE03W0H BE03Z08 IGNITION SWITCH AND KEY UNLOCK WARNING SWITCH INSPECTION 1. INSPECT IGNITION SWITCH CONTINUITY Switch position LOCK ACC PN Tester connection to terminal number 34 234 611 24 5611 Specified condition No continuity Continuity Continuity Continuity START If continuity is not as specified, replace the switch. BE15 BODY ELECTRICAL SYSTEM IGNITION SWITCH 2. INSPECT IGNITION SWITCH CIRCUIT Connect the switch connector and inspect the connector on wire harness side from the back side, as shown. If circuit is not as specified, inspect the circuits connected to other parts. Tester connection to terminal number 2Ground 3Ground 4Ground 5Ground 6Ground Condition Specified condition Ignition switch ON Battery positive voltage Ignition switch ACC or ON Ignition switch to START Ignition switch to START Constant Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Ignition switch ON, START 11Ground 3. INSPECT KEY UNLOCK WARNING SWITCH Condition Tester connection to terminal number Tester connection to terminal number 10Ground 10Ground 9Ground Condition Ignition key removed Ignition key set Constant Specified condition No continuity Continuity Switch OFF (Key removed) Switch ON (Key set) 910 If continuity is not as specified, replace the switch 4. INSPECT KEY UNLOCK WARNING SWITCH CIRCUIT Connect the switch connector and inspect the connector on the wire harness side from the back side, as shown. If continuity is not as specified, inspect the circuit connected to other parts. Specified condition No continuity Continuity Continuity BE16 BODY ELECTRICAL SYSTEM HEADLIGHT SYSTEM HEADLIGHT SYSTEM PARTS LOCATION BE10P0B BE17 BODY ELECTRICAL SYSTEM HEADLIGHT SYSTEM TROUBLESHOOTING BE0930K The table below will be useful for you in troubleshooting these electrical problems. The most likely causes of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and replace the part when it is found to be faulty. USA: Headlight does not light (Taillight is normal) (BE11) (BE12) (BE22) (BE22) (BE25) (Taillight does not light up) (BE22) (BE25) (BE11) Only one side light does not light "LoBeam" does not light "HiBeam" does not light "Flash" does not light (BE22) (BE22) (BE22) (BE25) (BE9) (BE70) "Auto Turnoff System" does not operate Trouble Parts name 1. MAIN FL 2. HEAD Fuse (LH, RH) 3. Headlight Control Relay 4. Headlight Dimmer Switch 5. Light Control Switch 6. Integration Relay 7. Wire Harness 8. Headlight Bulb 1. MAIN FL 2. Light Control Switch 3. Integration Relay 4. Wire Harness 5. Headlight Bulb 1. HEAD Fuse (LH, RH) 2. Headlight Bulb 3. Wire Harness 1. Headlight Dimmer Switch 2. Wire Harness 1. Headlight Dimmer Switch 2. Wire Harness 1. Headlight Dimmer Switch 2. Wire Harness 1. Integration Relay 2. Wire Harness 3. GAUGE Fuse 4. Door Courtesy Switch (Driver's) (See page) CANADA: Headlight does not light (Taillight is normal) (BE12) (BE24) (BE22) (BE24) (BE22) Headlight does not light (Taillight does not light up) (BE22) (BE25) Trouble Parts name 1. MAIN FL 2. Headlight Control Relay and DRL No.2 Relay 3. Daytime Running Light Relay 4. Headlight Dimmer Switch 5. Integration Relay 6. Light Control Switch 7. Wire Harness 8. Headlight Bulb 1. MAIN FL 2. Light Control Switch 3. Integration Relay 4. Wire Harness 5. Headlight Bulb (See page) BE18 Parts name 1. Headlight Bulb Only one side light does not light 2. Wire Harness 1. Headlight Control Relay "LoBeam" does not light (ALL) 2. Wire Harness 1. HEAD LHLWR Fuse 2. HEAD RHLWR Fuse "LoBeam" does not light (ONE SIDE) 3. Headlight Bulb 4. Wire Harness 1. DRL No.2 Relay 2. Daytime Running Light Relay "HiBeam" does not light (ALL) 3. Headlight Dimmer Switch 4. Wire Harness 1. HEAD LHUPR Fuse 2. HEAD RHUPR Fuse "HiBeam" does not light (ONE SIDE) 3. Headlight Bulb 4. Wire Harness 1. Headlight Dimmer Switch 2. Daytime Running Light Relay "Flash" does not light 3. Wire Harness 1. Integration Relay 2. GAUGE Fuse "Auto Turnoff System" does not operate 3. Wire Harness 4. Door Courtesy Switch (Driver's) 1. Head Light Control Relay 2. Integration Relay Headlight does not light with light control SW in HEAD. 3. Light Control Switch 4. Daytime Running Light Relay 5. Wire Harness 1. Headlight Control Relay 2. Daytime Running Light Relay Headlight does not light with light control SW in OFF. 3. Wire Harness 1. Taillight Control Relay Taillight does not light with light control SW in TAIL. 2. Light Control Switch 1. Taillight Control Relay Tailight does not go out with light control SW in OFF. 2. Light Control Switch 3. Wire Harness 1. GAUGE Fuse 2. Daytime Running Light Relay Headlight do not light with engine running and light 3. Wire Harness control SW in OFF. 4. Generator L Terminal 5. Parking Brake Switch Trouble BODY ELECTRICAL SYSTEM HEADLIGHT SYSTEM (See page) (BE68) (BE9) (BE24) (BE9) (BE22) (BE9) (BE22) (BE12) (BE24) (BE70) (BE12) (BE25) (BE22) (BE24) (BE25) (BE9) (BE22) (BE24) (BE12) (BE24) (BE22) (BE12) (BE11) (BE11) (BE11) (BE11) BE19 BODY ELECTRICAL SYSTEM HEADLIGHT SYSTEM HEADLIGHT AIMING ADJUSTMENT BE1GY02 Adjusting headlight aim only 1. INSPECT HEADLIGHT AIM Do the following items before inspection. 2. Make sure the body around the headlight is not deformed. Park the vehicle on a level spot. The driver gets into the driver's seat and puts the vehicle in a state ready for driving (with a full tank). Bounce the vehicle several times. ADJUST HEADLIGHT AIM Vertical Alignment: If the bubble is outside the acceptable range of the beam angle gauge, adjust it using bolt A. Horizontal Alignment: If the "O" moves away from the mark beyond the acceptable range, adjust the "O" back to the mark using bolt B. BE20 BODY ELECTRICAL SYSTEM HEADLIGHT SYSTEM Replacing headlight 1. 2. REPLACE HEADLIGHT INSPECT HEADLIGHT AIM Do the following items before inspection. Make sure the body around the headlight is not deformed. Park the vehicle on a level spot. The driver gets into the driver's seat and puts the vehicle in a state ready for driving (with a full tank). Bounce the vehicle several times. 3. ADJUST HEADLIGHT AIM Vertical Alignment: (a) Using adjustment bolt A, adjust the headlight aim to within the specifications. (b) Make sure the gauge bubble is within the acceptable range. HINT: If the gauge bubble is outside the acceptable range, check that the vehicle is parked on a level spot. Readjust the headlight aim after parking the vehicle on a level spot. (c) Horizontal Alignment: Using adjustment bolt B, adjust the headlight aim to within the specifications. (d) Using adjustment bolt C, adjust the "O" back to the mark. COMBINATION SWITCH REMOVAL AND INSTALLATION BE29V01 (See page SR12) BE21 BODY ELECTRICAL SYSTEM HEADLIGHT SYSTEM COMBINATION SWITCH DISASSEMBLY BE29W01 Components BE22 BODY ELECTRICAL SYSTEM HEADLIGHT SYSTEM BE09C07 COMBINATION SWITCH INSPECTION Switch position OFF Tester connection to terminal number A7 A16 Specified condition No continuity Continuity Continuity Continuity TAIL HEAD AUTO A6 A7 A16 A15 A16 1. INSPECT LIGHT CONTROL SWITCH CONTINUITY If continuity is not as specified, replace the switch. 2. INSPECT FOG LIGHT SWITCH CONTINUITY Tester connection to terminal number A5A14 Switch position OFF ON Specified condition No continuity Continuity If continuity is not as specified, replace the switch. 3. INSPECT DIMMER SWITCH CONTINUITY Tester connection to terminal number A9A17A18 A8A18 A9A18 Switch position Flash Specified condition Continuity Continuity Continuity Low beam High beam If continuity is not as specified, replace the switch. 4. INSPECT TURN SIGNAL SWITCH CONTINUITY Tester connection to terminal number B2B8 B1B8 Switch position Left turn Neutral Specified condition Continuity Continuity No continuity Right turn If continuity is not as specified, replace the switch. 5. INSPECT COMBINATION SWITCH CIRCUIT Connect the wire harness side connector to the combination switch and inspect wire harness side connector from the back side, as shown on next page. Tester connection to terminal number A8Ground B1Ground B2Ground A8Ground Hazard warning switch ON Ignition switch ON and turn signal switch Left or Right Constant Constant Constant Light control switch OFF or TAIL Light control switch HEAD or AUTO Constant Tester connection to terminal number A17Ground A9Ground A9Ground A18Ground A14Ground A5Ground Tester connection to terminal number A16Ground BODY ELECTRICAL SYSTEM Tester connection to terminal number A5Ground Light control switch HEAD and dimmer switch LO Light control switch HEAD and dimmer switch HI or Flash Constant Constant Turn Signal Switch Circuit: Headlight Dimmer Switch Circuit: Fog Light Switch Circuit: Light Control Switch Circuit: * There is resistance because this circuit is grounded through the bulb. If the circuit is not as specified, inspect the circuit connected to other parts. Condition Condition Condition Condition HEADLIGHT SYSTEM *Continuity *Continuity Continuity Continuity Battery positive voltage 0V Battery positive voltage 0V Battery positive voltage No voltage Battery positive voltage Continuity No voltage Battery positive voltage Specified condition Specified condition Specified condition Specified condition BE23 BE24 BODY ELECTRICAL SYSTEM HEADLIGHT SYSTEM HEADLIGHT CONTROL RELAY BE10U04 DAYTIME RUNNING LIGHT NO.2 RELAY DAYTIME RUNNING LIGHT NO.4 RELAY INSPECTION INSPECT RELAY CONTINUITY Condition Constant Apply B + between terminal 1 and 2. Tester connection to terminal number 12 34 Specified condition Continuity Continuity If continuity is not as specified, replace the relay. DAYTIME RUNNING LIGHT NO.3 RELAY INSPECTION BE10V04 INSPECT DAYTIME RUNNING LIGHT RELAY NO.3 CONTINUITY Condition Constant Specified condition Continuity Continuity Apply B + between terminals 1 and 3. 45 Tester connection to terminal number 13 24 If continuity is not as specified, replace the relay. Tester connection to terminal number A10Ground A1Ground A7Ground A7Ground B3Ground B2Ground A6Ground A6Ground B4Ground B4Ground B1Ground B1Ground Constant Constant Constant Constant Ignition switch ON Ignition switch LOCK or ACC Driver's door courtesy switch ON Driver's door courtesy switch OFF Light control switch TAIL Light control switch OFF or HEAD Light control switch HEAD Light control switch OFF or TAIL BODY ELECTRICAL SYSTEM INTEGRATION RELAY INSPECTION If the circuit is as specified, trying replacing the relay with a new one. If the circuit is not as specified, inspect the circuits connected to other parts. Condition HEADLIGHT SYSTEM INSPECT INTEGRATION RELAY CIRCUIT Light Auto Turn Off System Remove the relay from junction block and inspect the connectors on the wire harness and junction block side, as shown in the chart. Battery positive voltage Battery positive voltage No voltage Continuity Continuity Continuity Continuity No continuity No continuity No continuity Battery positive voltage Battery positive voltage Specified condition BE25 BE09G0F BE26 BODY ELECTRICAL SYSTEM HEADLIGHT SYSTEM DAYTIME RUNNING LIGHT RELAY INSPECTION BE10W08 INSPECT DAYTIME RUNNING LIGHT RELAY CIRCUIT Disconnect the connector from relay and inspect the connector on wire harness side, as shown. Tester connection to terminal number 5Ground Condition Specified condition 5Ground 16Ground 16Ground 8Ground 8Ground 13Ground 18Ground 18Ground 11Ground 11Ground 15Ground 17Ground Headlight dimmer switch Lo beam or high beam Headlight dimmer switch Flash Headlight dimmer switch Low beam Headlight dimmer switch Flash or High beam Parking brake switch OFF Parking brake switch ON Constant Ignition switch LOCK or ACC Ignition switch ON Engine Stop Engine Running Constant No continuity Continuity No continuity Continuity No continuity Continuity Continuity No voltage Battery positive voltage No voltage Battery positive voltage Battery positive voltage If circuit is as specified, trying replacing the relay with a new one. If the circuit is not as specified, inspect the circuit connected to other parts. DOOR COURTESY SWITCH INSPECTION (See page dealing with COMBINATION METER.) PARKING BRAKE SWITCH INSPECTION (See page dealing with COMBINATION METER.) BE27 BODY ELECTRICAL SYSTEM HEADLIGHT SYSTEM LIGHT CONTROLLING SYSTEM INSPECTION BE10X03 1. INSPECT AUTOMATIC LIGHT CONTROL AUTO ON: (a) Turn the ignition switch ON. (b) Turn the light control switch AUTO. (c) Gradually cover the top of the sensor. (d) Verify that the lights should turn ON the accessary lights and the headlights. 2. INSPECT AUTOMATIC LIGHT CONTROL AUTO OFF: (a) Gradually expose the sensor. (b) Verify that the lights should turn OFF the accessary lights and the headlights. 3. INSPECT LIGHTOFF CONDITION (a) Turn the ignition switch ON. (b) Gradually cover the top of the sensor. Lights auto ON: (c) Verify that the lights will go out when light control switch position OFF or the area surrounding the sensor gets bright or open the driver's door while the ignition switch is OFF. 4. INSPECT LIGHTON CONDITION (a) Open the driver's door while the ignition switch is OFF. (b) Leading the door open, verify that the lights would go on when the ignition switch is turned ON. 5. ADJUST PHOTO DETECTING SENSOR (a) Adjustment of the light control is performed by turning the adjustable ring on the sensor. (b) This will determine at what light condition the automatic control will take plate. If response is too quick, turn the knob counter clockwise. If response is too slow, turn the knob clockwise. Tester connection to terminal number 9Ground 10Ground 10Ground 11Ground 11Ground 7Ground 7Ground 4Ground 3Ground 3Ground 9Ground Driver's door courtesy switch ON (Door opened) Constant Ignition switch ON Ignition switch LOCK or ACC Light control switch AUTO Condition BE28 BODY ELECTRICAL SYSTEM Driver's door courtesy switch OFF (Door closed) Light control switch TAIL or HEAD Light control switch OFF or AUTO Light control switch TAIL or HEAD Light control switch OFF or AUTO Light control switch OFF, TAIL or HEAD AUTOMATIC LIGHT CONTROL SENSOR INSPECTION If the circuit is not as specified, inspect the circuits connected to other parts. INSPECT AUTOMATIC LIGHT CONTROL SENSOR HEADLIGHT SYSTEM Disconnect the connector from relay and inspect the connector on wire harness side, as shown in the chart. No voltage No voltage Continuity Continuity Continuity Battery positive voltage Battery positive voltage Battery positive voltage No continuity No continuity No continuity Specified condition BE10Y03 BE29 BODY ELECTRICAL SYSTEM TURN SIGNAL AND HAZARD WARNING SYSTEM TURN SIGNAL AND HAZARD WARNING SYSTEM BE04N0F PARTS LOCATION BE30 BODY ELECTRICAL SYSTEM TURN SIGNAL AND HAZARD WARNING SYSTEM TROUBLESHOOTING BE04Q0F The table below will be useful for you in troubleshooting these electrical problems. The most likely causes of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and replace the part when it is found to be faulty. "Hazard" and "Turn" do not light u Hazard Turn up The flashing frequency is abnormal (BE31) Hazard warning light does not light up (Turn is normal) (BE11) (BE32) Hazard warning light does not light up in one direction *1 (BE32) (BE14) (BE9) (BE22) (BE9) (BE22) (BE22) Turn signal does not light up *2 Turn signal does not light u up Turn signal does not light up in one direction Only one bulb does not light up Trouble Parts name 1. Hazard Warning Switch 2. Turn Signal Flasher 3. Wire Harness 1. Bulb 2. Turn Signal Flasher 3. Wire Harness 1. HAZHORN Fuse 2. Hazard Warning Switch 3. Wire Harness 1. Hazard Warning Switch 2. Wire Harness 1. Ignition Switch 2. TURN Fuse) 3. Turn Signal Switch 4. Wire Harness 1. TURN Fuse 2. Turn Signal Switch 3. Wire Harness 1. Turn Signal Switch 2. Wire Harness 1. Bulb 2. Wire Harness (See page) (BE32) (BE31) *1: Combination Meter, Wiper and Washer do not operate. *2: Combination Meter, Wiper and Washer are normal. BE31 BODY ELECTRICAL SYSTEM TURN SIGNAL AND HAZARD WARNING SYSTEM COMBINATION SWITCH ASSEMBLY BE04T07 INSPECT TURN SIGNAL SWITCH (See page dealing with HEADLIGHT SYSTEM.) HINT: Inspect turn signal light switch. BE04U0J TURN SIGNAL FLASHER INSPECTION INSPECT TURN SIGNAL FLASHER OPERATION (a) Connect the positive (+) lead from the battery to terminal 2 and the negative () lead to terminal 3. (b) Connect the two turn signal light bulbs parallel to each other to terminals 1 and 3, check that the bulbs flash. HINT: The turn signal lights should flash 60 or 120 times per minute. If one of the front or rear turn signal lights has an open circuit, the number of flashers will be more than 140 per minute. If operation is not as specified, replace the flasher. BE32 BODY ELECTRICAL SYSTEM TURN SIGNAL AND HAZARD WARNING SYSTEM HAZARD WARNING SWITCH INSPECTION BE04W07 1. INSPECT HAZARD WARNING SWITCH CONTINUITY Condition Switch OFF Switch ON Illumination circuit Tester connection to terminal number 7 10 78 4569 23 Specified condition Continuity Continuity Continuity If continuity is not as specified, replace the switch. 2. INSPECT HAZARD WARNING SWITCH CIRCUIT Disconnect the switch connector and inspect the connection on the wire harness side, as shown. Tester connection to terminal number 8Ground 10Ground 10Ground Condition Specified condition Constant Battery positive voltage No voltage No voltage Continuity Battery positive voltage Ignition switch LOCK or ACC Ignition switch ON Light control switch OFF Constant Constant Constant *1 2Ground *1 2Ground *1 3Ground 5Ground 6Ground Light control switch TAIL or HEAD Battery positive voltage *2 Continuity *2 Continuity *1: Illumination *2 There is resistance because this circuit is grounded through the bulb. If the circuit is not as specified, inspect the circuits connected to other parts. BE33 BODY ELECTRICAL SYSTEM FOG LIGHT SYSTEM FOG LIGHT SYSTEM PARTS LOCATION BE10Z07 TROUBLESHOOTING BE11007 The table below will be useful for you in troubleshooting these electrical problems. The most likely causes of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and replace the part when it is found to be faulty. Trouble Fog light does not light with light control SW HEAD ( (Headlight is normal). g ) Fog light does not light with light control SW HEAD (Headlight does not light). Only one light does not light. Parts name 1. HEAD Fuse 2. Fog Light Relay 3. Fog Light Switch 4. Wire Harness 1. Inspect Headlight system 2. Wire Harness 1. Bulb 2. Wire Harness (See page) (BE11) (BE34) (BE22) (BE16) BE34 BODY ELECTRICAL SYSTEM FOG LIGHT SYSTEM FOG LIGHT AIM ADJUSTMENT BE11105 Abolt: Vertical Direction COMBINATION SWITCH ASSEMBLY BE20X01 INSPECT FOG LIGHT SWITCH CONTINUITY (See page dealing with HEAD LIGHT SYSTEM.) HINT: Inspect fog light switch. FOG LIGHT RELAY INSPECTION BE0530C INSPECT FOG LIGHT RELAY CONTINUITY Condition Constant Apply B+ between terminals 1 and 2. Tester connection to terminal number 12 35 Specified condition Continuity Continuity If continuity is not as specified, replace the relay. BE35 BODY ELECTRICAL SYSTEM INTERIOR LIGHT SYSTEM INTERIOR LIGHT SYSTEM PARTS LOCATION BE11307 TROUBLESHOOTING Courtesy light does not light up. Vanity light does not light up. Trouble Luggage compartment light does not light up. Rear personal light does ont light up. Front personal light does not light up. Interior light does not light up (in front personal light). "Illuminated Entry System" does not operate. Interior light does not light up (All). Only one interior light does not light up. BE36 The table below will be useful for you in troubleshooting these electrical problems. The most likely causes of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and replace the part when it is found to be faulty. BODY ELECTRICAL SYSTEM Parts name 1. Bulb 2. Wire Harness 1. DOME Fuse 2. Wire Harness 1. Integration Relay 2. Door Courtesy Switch 3. Wire Harness 1. Bulb 2. Front Personal Light 3. Wire Harness 1. Bulb 2. Front Personal Light 3. Wire Harness 1. Bulb 2. Rear Personal Light 3. Wire Harness 1. Bulb 2. Vanity Light 3. Wire Harness 1. Bulb 2. Luggage Compartment Door Courtesy Switch 3. Wire Harness 1. Bulb 2. Door Courtesy Switch 3. Wire Harness INTERIOR LIGHT SYSTEM (See page) (BE37) (BE42) (BE40) (BE39) (BE38) (BE38) (BE37) (BE37) (BE11) BE05L0K BE37 BODY ELECTRICAL SYSTEM INTERIOR LIGHT SYSTEM INTEGRATION RELAY INSPECTION BE05Q0F INSPECT INTEGRATION RELAY CIRCUIT Remove the relay from junction block and inspect the connector on the junction block side, as shown in the chart. If circuit is as specified, trying replacing the relay with a new one. If the circuit is not as specified, inspect the circuits connected to other parts. Tester connection to terminal number 10Ground 4Ground 4Ground 7Ground 7Ground 1Ground Condition Specified condition Constant Courtesy Switch OFF(Door closed) Courtesy Switch ON(Door opened) Ignition switch LOCK or ACC Ignition switch ON Constant Continuity No continuity Continuity No voltage Battery positive voltage Battery positive voltage COURTESY SWITCH INSPECTION 1. BE11404 INSPECT DOOR COURTESY SWITCH CONTINUITY Tester connection to terminal number 123 Switch position ON (Switch pin released) OFF (Switch pin pushed in) Specified condition Continuity No continuity If continuity is not as specified, replace the switch. 2. INSPECT DOOR COURTESY SWITCH CIRCUIT Disconnect the connector from the switch and inspect the connector on the wire harness side, as shown. If circuit is not as specified, inspect power source or wire harness. Tester connection to terminal number 2Ground 1Ground 1Ground 3Ground 3Ground Condition Specified condition Constant Ignition switch LOCK or ACC Ignition switch ON Ignition switch LOCK or ACC Ignition switch ON Continuity No voltage Battery positive voltage No voltage Battery positive voltage BE38 BODY ELECTRICAL SYSTEM INTERIOR LIGHT SYSTEM FRONT PERSONAL LIGHT SWITCH INSPECTION BE11509 Tester connection to terminal number 1Ground 2Ground Constant Constant Switch position DOOR OFF ON Tester connection to terminal number 123 12 Specified condition Continuity No continuity Continuity 1. INSPECT INTERIOR LIGHT SWITCH CONTINUITY 2. INSPECT PERSONAL LIGHT SWITCH CONTINUITY Tester connection to terminal number 12 Switch position OFF *ON Specified condition No continuity Continuity * Set to the interior light switch to OFF or DOOR. If continuity is not as specified, replace the light assembly or bulb. 3. INSPECT PERSONAL LIGHT SWITCH CIRCUIT Disconnect the connector from the switch and inspect the connector on the wire harness side, as shown. Condition Specified condition Battery positive voltage Continuity If circuit is not as specified, inspect power source or wire harness. BE39 BODY ELECTRICAL SYSTEM INTERIOR LIGHT SYSTEM REAR PERSONAL LIGHT INSPECTION BE11604 1. INSPECT REAR PERSONAL LIGHT CONTINUITY Switch position OFF ON Tester connection to terminal number 12 12 123 Specified condition Continuity Continuity Tester connection to terminal number 1Ground 3Ground 2Ground 2Ground Constant Constant *Rear door position / Open *Rear door position / Closed If continuity is not as specified, replace bulb or rear personal light. 2. INSPECT REAR PERSONAL LIGHT SWITCH CIRCUIT Disconnect the connector from the rear personal light and inspect the connector on the wire harness side, as shown. Condition Specified condition Battery positive voltage Continuity Continuity Continuity *: Left side switch Left Door / Right Side Switch Right Door If circuit is not as specified, inspect wire harness, courtesy switch or power source. BE40 BODY ELECTRICAL SYSTEM INTERIOR LIGHT SYSTEM VANITY LIGHT INSPECTION BE11704 Tester connection to terminal number 1Ground 2Ground Constant Constant Switch position OFF (Closed) ON (Open) Tester connection to terminal number 12 Specified condition No continuity Continuity 1. INSPECT VANITY LIGHT CONTINUITY If continuity is not as specified, replace bulb or vanity light. 2. INSPECT VANITY LIGHT SWITCH CIRCUIT Disconnect the connector from the switch and inspect the connector on the wire harness side, as shown. Condition Specified condition Battery positive voltage Continuity If circuit is not as specified, inspect power source or wire harness. BE41 BODY ELECTRICAL SYSTEM INTERIOR LIGHT SYSTEM DOOR COURTESY LIGHT INSPECTION BE11804 1. INSPECT DOOR COURTESY LIGHT CONTINUITY Using the ohmmeter, check that there is continuity between terminals. 2. INSPECT DOOR COURTESY LIGHT CIRCUIT Disconnect the connector from the light and inspect the connector on the wire harness, as shown. Tester connection to terminal number 2Ground 2Ground 1Ground Condition Specified condition Courtesy switch ON (Switch pin released) Courtesy switch OFF (Switch pin pushed in) Constant Battery positive voltage No voltage Continuity If circuit is not as specified, inspect the power source or wire harness. BE42 BODY ELECTRICAL SYSTEM INTERIOR LIGHT SYSTEM LUGGAGE COMPARTMENT DOOR COURTESY SWITCH INSPECTION BE11904 1. Tester connection to terminal number 1Ground Constant Switch position OFF (Closed) ON (Opened) Tester connection to terminal number 1Ground Specified condition No continuity Continuity INSPECT LUGGAGE COMPARTMENT COURTESY SWITCH CONTINUITY DOOR 2. If operation is not as specified, replace the switch. INSPECT LUGGAGE DOOR COURTESY SWITCH CIRCUIT Disconnect the connector from the switch and inspect the connector on the wire harness, as shown. Condition Specified condition Battery positive voltage If circuit is not as specified, inspect power source or wire harness. BE43 BODY ELECTRICAL SYSTEM HEADLIGHT CLEANER SYSTEM HEADLIGHT CLEANER SYSTEM PARTS LOCATION BE11A03 BE44 BODY ELECTRICAL SYSTEM HEADLIGHT CLEANER SYSTEM TROUBLESHOOTING BE09X07 Trouble "Headlight Cleaner System" does not operate (Using light control switch) "Headlight Cleaner System" does not operate (When operating "Running Light System") "Headlight Cleaner System" does not operate (All) Parts name 1. Combination Switch (Light control switch) 2. Integration Relay 3. Wire Harness 1. Daytime Running Light Relay 2. Wire Harness 1. FL AM1 2. WIPER Fuse 3. Ignition Switch 4. Headlight Cleaner Switch 5. Headlight Cleaner Relay 6. Headlight Cleaner Motor 7. Headlight Cleaner Nozzle and Hose 8. Wire Harness (See page) (BE22) (BE25) (BE24) (BE11) (BE9) (BE14) (BE45) (BE46) (BE47) The table below will be useful for you in troubleshooting these electrical problems. The most likely causes of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and replace the part when it is found to be faulty. BE45 BODY ELECTRICAL SYSTEM HEADLIGHT CLEANER SYSTEM HEADLIGHT CLEANER SWITCH INSPECTION BE09Z08 Tester connection to terminal number 3Ground 3Ground Ignition switch LOCK or ACC Ignition switch ON Headlight condition Light on Headlight condition Go out 12Ground 12Ground Condition Tester connection to terminal number 312 Specified condition Switch OFF Switch ON No continuity Continuity 1. INSPECT HEADLIGHT CLEANER SWITCH CONTINUITY If continuity is not as specified, replace the switch. 2. INSPECT HEADLIGHT CLEANER SWITCH CIRCUIT Disconnect the switch connector and inspect the connector on wire harness side, as shown. Condition Specified condition No voltage Continuity Battery positive voltage No continuity If circuit is not as specified, inspect the circuit connected to other parts. BE46 BODY ELECTRICAL SYSTEM HEADLIGHT CLEANER SYSTEM HEADLIGHT CLEANER RELAY INSPECTION BE0A108 1. INSPECT HEADLIGHT CLEANER RELAY OPERATION (a) Check that there is no continuity between terminals 2 and 5. (b) Connect the positive (+) lead from the battery to terminals 1 and 5 and the negative () lead to terminal 3. (c) Connect the negative () lead from the battery to terminal 4, check that there is continuity between terminals 2 and 5 for 0.4 0.6 seconds, then there is no continuity. If operation is not as specified, replace the relay. 2. INSPECT HEADLIGHT CLEANER RELAY CIRCUIT Disconnect the connector from the relay and inspect the connector on wire harness side, as shown. Tester connection to terminal number 1Ground 1Ground 5Ground 2Ground 3Ground 4Ground 4Ground Condition Specified condition Ignition switch OFF or ACC Ignition switch ON Constant Constant No voltage Battery positive voltage Battery positive voltage Continuity Continuity Ignition switch ON, light control switch to HEAD and cleaner switch ON Ignition switch ON, light control switch to HEAD and cleaner switch OFF No continuity If circuit is not as specified, inspect the circuits connected to other parts BE47 BODY ELECTRICAL SYSTEM HEADLIGHT CLEANER SYSTEM HEADLIGHT CLEANER MOTOR INSPECTION BE0A308 1. INSPECT HEADLIGHT CLEANER MOTOR OPERATION Connect the positive (+) lead from the battery to terminal 1 and the negative () lead to terminal 2, check that the motor operates. NOTICE: There tests must be performed quickly (within 20 seconds) to prevent the coil from burning out. If operation is not as specified, replace the motor. INSPECT HEADLIGHT CLEANER MOTOR CIRCUIT Disconnect the connector from the cleaner motor and inspect the connector on harness side, as shown. 2. Tester connection to terminal number 1Ground Condition Specified condition Constant Battery positive voltage If circuit is not as specified, inspect the circuits connected to other parts. BE48 BODY ELECTRICAL SYSTEM WIPER AND WASHER SYSTEM WIPER AND WASHER SYSTEM PARTS LOCATION BE11B07 BE49 BODY ELECTRICAL SYSTEM WIPER AND WASHER SYSTEM TROUBLESHOOTING BE0A70G The table below will be useful for you in troubleshooting these electrical problems. The most likely causes of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and replace the part when it is found to be faulty. Wiper and washers do not operate*1 Wipers and washers do not operate.*2 (BE9) (BE14) (BE52) (BE50) (BE9) (BE52) (BE50) (BE52) (BE50) (BE52) (BE54) (BE50) (BE52) (BE54) (BE55) (BE52) (BE50) (BE50) (BE54) Wipers and washers do not operate.*3 Wipers do not operate in LO, HI or MIST. Wipers do not operate in INT. Wiper angle control Motor does not operate. Washer motor does not operate. Wipers do not operate when washer switch is ON. Washer fluid does not spray. *1: *2: Trouble Parts name 1. FL AM1 2. WIPER Fuse 3. Ignition Switch 4. Wiper Switch 5. Wiper Motor 6. Wire Harness 1. WIPER Fuse 2. Ignition Switch 3. Wiper Switch 4. Wiper Motor 5. Wire Harness 1. WIPER Fuse 2. Wiper Switch 3. Wiper Motor 4. Wire Harness 1. Wiper Switch 2. Wiper Motor 3. Wire Harness 1. Washer Switch 2. Wiper Relay 3. Wiper Motor 1. Wiper Switch 2. Wiper Relay 3. Wiper Angle Control Motor 4. Wire Harness 1. Washer Switch 2. Washer Motor 3. Wire Harness 1. Washer Motor 2. Wiper Relay 3. Wire Harness 1. Washer Hose and Nozzle (See page) (BE11) (BE9) (BE14) (BE52) (BE50) Door Lock and Power Window do not operate. Door Lock and Power Window are normal. Combination Meter and Turn Signal do not operate. *3: Combination Meter and Turn Signal are normal. BE50 BODY ELECTRICAL SYSTEM WIPER AND WASHER SYSTEM WIPER MOTOR INSPECTION BE0AE08 1. INSPECT MOTOR OPERATION Low Speed Connect the positive (+) lead from the battery to terminal 3 and the negative () lead to terminal 1, check that the motor operates at low speed. If operation is not as specified, replace the motor. High Speed Connect the positive (+) lead from the battery to terminal 2 and the negative () lead to terminal 1, check that the motor operates at high speed. If operation is not as specified, replace the motor. Stopping at Stop Position (a) Operate the motor at low speed and stop the motor operation anywhere except at the stop position by disconnecting positive (+) lead from terminal 3. (b) Connect terminals 3 and 4. (c) Connect the positive (+) lead from the battery to terminal 5 and negative () lead to terminal 1, check that the motor stops running at the stop position after the motor operates again. If operation is not as specified, replace the motor. Tester connection to terminal number 1Ground 4Ground 4Ground 3Ground 3Ground 2Ground 2Ground Constant Wiper switch (Ignition switch ON) OFF or INT, LOW Wiper switch (Ignition switch ON) HIGH Wiper switch (Ignition switch ON) OFF or INT, HIGH Wiper switch (Ignition switch ON) LOW Ignition switch OFF or ACC Ignition switch ON BODY ELECTRICAL SYSTEM 2. INSPECT MOTOR CIRCUIT Disconnect the connector from the motor and inspect the connector on the wire harness side, as shown. If circuit is not as specified, inspect the circuits connected to other parts. Condition WIPER AND WASHER SYSTEM No voltage Battery positive voltage No voltage No voltage Continuity Battery positive voltage Battery positive voltage Specified condition BE51 BE52 BODY ELECTRICAL SYSTEM WIPER AND WASHER SYSTEM COMBINATION SWITCH INSPECTION BE11C04 1. INSPECT WIPER AND WASHER SWITCH CONTINUITY Switch position Wiper OFF Wiper INT Wiper LO Wiper HI Tester connection to terminal number A1A10 A1A10 B5B6 A1B14 B6B12 B7B14 B6B13 Specified condition Continuity Continuity Continuity Continuity Continuity Washer ON 2. FULLYCONCEALED/SEMICONCEALED CHANGER SWITCH CONTINUITY Tester connection to terminal number B6B11 Specified condition Continuity Continuity Switch position FULL SEMI If continuity is not as specified, replace the switch. 3. INSPECT WIPER SWITCH RESISTANCE If resistance value is not as specified, replace the switch. Tester connection to terminal number B6Ground A1C4 A2C14 A10C7 A11C18 B5C10 B11C13 B12C3 B13C11 B14Ground C8Ground Ignition switch LOCK or ACC Ignition switch ON BODY ELECTRICAL SYSTEM 4. INSPECT SWITCH CIRCUIT Disconnect the switch and wiper relay connector, inspect the each connector on the wire harness side, as shown. If circuit is not as specified, inspect wire harness or power source. Condition Constant WIPER AND WASHER SYSTEM No voltage Battery positive voltage Specified condition Continuity BE53 Tester connection to terminal number 15Ground 115 115 215 215 315 315 415 415 515 615 615 715 815 915 915 915 1015 1015 1015 1015 1115 11Ground 1615 1615 1715 1418 1418 1315 1315 Constant Washer switch OFF or HI Washer switch LO or INT Washer switch OFF, INT or LO Washer switch HI Wiper switch OFF, LO or INT Wiper switch HIGH Wiper switch OFF Wiper switch LO Wiper operation Wiper switch HI INT or LO Wiper switch INT or LO OFF Wiper operation Constant Wiper switch OFF Wiper switch INT or LOW Wiper switch HIGH Wiper switch OFF Wiper switch INT Wiper switch LO Wiper switch HIGH Washer switch OFF Washer switch ON Fullyconcealed/semiconcealed changer switch/FULL Fullyconcealed/semiconcealed changer switch/SEMI Wiper switch OFF INT or LO Wiper switch INT or LO HI Constant Intermittent time adjust switch/SLOW Intermittent time adjust switch/FAST Condition BE54 BODY ELECTRICAL SYSTEM WIPER RELAY INSPECTION INSPECT WIPER RELAY CIRCUIT Connect the wire harness side connector to the wiper relay and inspect wire harness side connector from the back side, as shown. If the circuit is as specified, trying replacing the relay with a new one. WIPER AND WASHER SYSTEM 0 V Above 9 V 0 V Above 9 V No voltage Approx. 50KW Less than 10W No voltage Battery positive voltage Continuity No voltage Battery positive voltage No voltage Battery positive voltage Battery positive voltage No voltage No voltage Battery positive voltage Battery positive voltage 0V Above 9V 0V Above 9 V Battery positive voltage Battery positive voltage Battery positive voltage No voltage Battery positive voltage Battery positive voltage No voltage Battery positive voltage Battery positive voltage Battery positive voltage No voltage Specified condition BE0AJ08 BE55 BODY ELECTRICAL SYSTEM WIPER AND WASHER SYSTEM WASHER MOTOR INSPECTION BE0AL0A 1. INSPECT WASHER MOTOR OPERATION Connect the positive (+) lead from the battery to terminal 2 and the negative () lead to terminal 1, check that the motor operates. NOTICE: There tests must be performed quickly (within 20 seconds) to prevent the coil from burning out. If operation is not as specified, replace the motor. INSPECT MOTOR CIRCUIT Disconnect the connector from the washer motor and inspect the connector on harness side, as shown. If circuit is not as specified, inspect wire harness, power source or wiper switch. 2. Tester connection to terminal number 1Ground 1Ground 2Ground 2Ground Condition Specified condition Washer switch OFF (released) Washer switch ON (pushed in) Ignition switch LOCK or ACC Ignition switch ON No continuity Continuity No voltage Battery positive voltage WIPER ANGLE CONTROL MOTOR INSPECTION BE11D04 1. INSPECT WIPER ANGLE CONTROL MOTOR OPERATION Connect the positive (+) lead from the battery to terminal 5 and the negative () lead to terminal 6, check that the motor operates. INSPECT WIPER ANGLE CONTROL MOTOR When the motor is operating, check that current flows alternately between terminals 1 and 2, terminals 1 and 3, and terminals 1 and 4. If operation is not as specified, replace the motor. 2. BE56 BODY ELECTRICAL SYSTEM COMBINATION METER COMBINATION METER PARTS LOCATION BE11E05 BE57 BODY ELECTRICAL SYSTEM COMBINATION METER WIRING DIAGRAM BE11F05 BE58 BODY ELECTRICAL SYSTEM COMBINATION METER CONNECTOR DIAGRAMS BE11G04 BE59 BODY ELECTRICAL SYSTEM COMBINATION METER COMBINATION METER DISASSEMBLY BE11H03 Components 1. REMOVE COVER (a) Remove 6 screws. (b) Remove the cover from the meter case. 2. REMOVE POWER SOURCE UNIT (a) Remove 16 screws and 3 connectors. (b) Remove the power source unit from the meter case. BE60 BODY ELECTRICAL SYSTEM COMBINATION METER 3. REMOVE METER GLASS Push down 6 locking lugs and remove meter glass from meter case. 4. REMOVE ODOMETER/TWIN TRIP METER (a) Remove 3 screws and disconnect the connector. (b) Remove the odometer and twin trip meter from meter case. 5. REMOVE FUEL AND TEMPERATURE GAUGE Release and separate the 2 gauges from the lens. COMBINATION METER ASSEMBLY INSPECTION BE11J04 INSPECT COMBINATION METER WIRING CIRCUIT Disconnect connector A, connector B and connector C from the combination meter and inspect the connectors on the wire harness side as follows. Igniter Low oil Pres sure warning SW Door courtesy y switch Headlight HEAD Fuse Window Continuity washer level warning switch Brake fluid Continuity y level warning g SW and P k d Parking brake i b k SW Fuel sender g g gauge OD OFF switch Generator "L" terminal Park/Neutral Position Switch Connection DOME fuse Speed sensor Voltage Voltage Voltage Continuity Voltage Continuity y Continuity Resistance Continuity y Continuity Voltage Continuity y Check for Voltage Tester connection B11Ground BODY ELECTRICAL SYSTEM A12Ground A19Ground A13Ground A15Ground A14Ground A18Ground C5Ground C6Ground B9Ground A9Ground (Canada) ( ) A8Ground A6Ground A5Ground A4Ground A3Ground A2Ground A1Ground B13B15 B7B8 Engine Running OFF (float up) Fuel remainder Engine stop Engine running OD OFF switch Constant Driver's and pas senger's door Constant Light control SW "HEAD" Engine condition L 2 Brake fluid level warning SW Parking brake SW g Full Empty Float Full, Approx. 5.3 mm (0.21 in.) position 1/2, Approx. 120.9 mm (4.76 in.) Empty, Approx. 244.7 mm (9.63 in.) ON (float down) Ignition *1 Revolve propeller shaft Switch *1 Stop propeller shaft ON Ignition P switch ON and R shift lever l N position D COMBINATION METER Condition Dimmer SW "HI" or "Flasher" Dimmer SW "LO" Open (ON) Closed (OFF) Stop ON OFF ON (float down) OFF (float up) ON (Depress the Pedal) OFF (Release the Pedal) Running Continuity No continuity Continuity Battery positive voltage No voltage Voltage fluctuates Continuity Continuity No continuity Continuity No continuity No continuity No continuity 0 V or 11 V Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Continuity No continuity Continuity Battery positive voltage No continuity Continuity Approx. 3 W Approx. 30.8 W Approx. 110 W Continuity Specified valve Battery positive voltage 0 V 11 V BE61 *1 Jack up the vehicle. Ground Rheostat light control vol ume SRS Fuse Park/Neutral position switch GAUGE fuse Engine oil level g warning switch Connection ECT pattern select switch BE62 Continuity y Voltage Voltage Voltage Voltage Continuity y Check for Voltage BODY ELECTRICAL SYSTEM Tester connection C3Ground B10Ground B22Ground B23Ground B12Ground A11Ground C7Ground B2Ground B1Ground If circuit is not as specified, inspect the circuits connected to other parts. Constant Constant Constant Light control SW HEAD or TAIL and Rheostat volume knob position. Condition IG SW ON and ECT pattern select PWR SW position NORM Oil temperature below approx. 55C (131F) Oil temperature ON (float up) above approx. 55C (131 F) and SW OFF (float off) position Ignition switch ON position LOCK, ACC, START Ignition switch START position ("P" or "N" position) LOCK, ACC, ON Constant COMBINATION METER Battery positive voltage No voltage Battery positive voltage No voltage Battery positive voltage ON (Rheostat knob Battery positive turned any position voltage or 5 V or except fully clockwise) more OFF (Rheostat knob No voltage turned fully clockwise) Continuity Continuity Continuity No continuity Specified valve Battery positive voltage No voltage Continuity Continuity ONVEHICLE (a) Connect a tuneup test tachometer, and start the engine. NOTICE: Reversing the connection of the tachometer will damage the transistors and diodes inside. (b) Compare the tester and tachometer indications. If error is excessive, replace the tachometer. RPM (DC 13.5 V, 25C (77F)) Standard indication 700 1,000 2,000 3,000 4,000 5,000 6,000 7,000 USA (mph) Standard indication 20 40 60 80 100 120 Allowable range 1824 3844 5666 7888 98110 118132 BODY ELECTRICAL SYSTEM TACHOMETER INSPECTION SPEEDOMETER INSPECTION ONVEHICLE Using a speedometer tester, inspect the speedometer for allowable indication error and check the operation of the odometer. HINT: Tire wear and tire over or under inflation will increase the indication error. If error is excessive, replace the speedometer. COMBINATION METER CANADA (km/h) Standard indication 20 40 60 80 100 120 140 160 Allowable range 630770 9001,100 1,8502,150 2,8003,200 3,8004,200 4,8005,200 5,7506,250 6,7007,300 Allowable range 1724 3846 57.567 7788 96109 115130 134151.5 153173 BE63 BE0BQ0G BE0BT0J BE64 BODY ELECTRICAL SYSTEM COMBINATION METER VEHICLE SPEED SENSOR INSPECTION BE11K04 1. INSPECT VEHICLE SPEED SENSOR OPERATION (a) Connect the positive (+) lead from battery to terminal 1 and negative () lead to terminal 2. (b) Connect the positive (+) lead from tester to terminal 3 and negative () lead to terminal 2. (c) Rotate shaft. (d) Check that there is voltage change from approx. O V to 11 V or more between terminals 2 and 3. HINT: The voltage change should be 4 times for every revolution of the speed sensor shaft. If operation is not as specified, replace the sensor. INSPECT VEHICLE SPEED SENSOR CIRCUIT Disconnect the connector from sensor and inspect the connector on wire harness side, as shown. If circuit is not as specified, inspect power source or wire harness. 2. Tester connection to terminal number 1Ground 1Ground Condition Specified condition Ignition switch ON Ignition switch LOCK or ACC Battery positive voltage No voltage FUEL GAUGE INSPECTION BE29Y01 1. INSPECT RECEIVER GAUGE OPERATION (a) Disconnect the connector from the sender gauge assembly. (b) Turn the ignition switch ON, check that the receiver gauge needle indicates EMPTY. (c) Connect terminals 2 and 3 on the wire harness side connector through a 3.4 W test bulb. (d) Turn the ignition switch ON, check that the bulb lights up and receiver gauge needle moves toward the full side. HINT: Because of the silicon oil in the gauge, it will take a short time for the needle to stabilize. If operation is not as specified, inspect the receiver gauge resistance. BE65 BODY ELECTRICAL SYSTEM COMBINATION METER 2. INSPECT FUEL RECEIVER GAUGE RESISTANCE Measure the resistance between terminals. Between terminals AB AC BC Resistance () Approx. 107.2 Approx. 261.5 Approx. 154.3 If resistance value is not as specified, replace the fuel receiver gauge. 3. INSPECT FUEL SENDER GAUGE RESISTANCE Measure the resistance between terminals 2 and 3 for each float position. Float position mm (in.) Approx. 5.3(0.21) Approx. 120.9 (4.76) Approx. 244.7 (9.63) Resistance (W) Approx. 3 Approx. 30.8 Approx. 110.0 F 1/2 E If resistance value is not as specified, replace the sender gauge. FUEL LEVER WARNING INSPECTION BE29Z01 1. INSPECT FUEL LEVEL WARNING SWITCH (a) Apply battery positive voltage between terminals 1 and 2 through a 3.4 W test bulb, check that the bulb lights up. HINT: It will take a short time for the bulb to light up. (b) Submerge the switch in fuel, check that the bulb goes out. If operation is not as specified, replace the sender gauge. 2. INSPECT FUEL LEVEL WARNING LIGHT (a) Disconnect the connector from the sender gauge. (b) Connect terminals 1 and 3 on the wire harness side connector. (c) Turn the ignition switch ON, check that the warning light lights up. If the warning light does not light up, test the bulb or inspect wire harness. BE66 BODY ELECTRICAL SYSTEM COMBINATION METER ENGINE COOLANT TEMPERATURE GAUGE INSPECTION BE2A101 1. INSPECT RECEIVER GAUGE OPERATION (a) Disconnect the connector from the sender gauge. (b) Turn the ignition switch ON, check that the receiver gauge needle indicates COOL. (c) Ground terminal on the wire harness side connector through a 3.4W test bulb. (d) Turn the ignition switch ON, check that the bulb lights up and the receiver gauge needle moves toward the hot side. If operation is as specified, replace the sender gauge. Then recheck the system. If operation is not as specified, measure the receiver gauge resistance. 2. INSPECT RECEIVER GAUGE RESISTANCE Measure the resistance between terminals. HINT: Connect the test leads so that the current from the ohmmeter can flow according to the chart order. Between terminals AB AC BC Resistance (W) Approx. 175.7 Approx. 54 Approx. 229.7 3. If resistance value is not as specified, replace the engine coolant temperature receiver gauge. INSPECT RESISTANCE SENDER GAUGE Measure the resistance between terminal and ground, as shown Temperature C(F) 50 (122.0) 120 (248.0) Resistance (W) 160 ~ 240 17.1 ~ 21.2 If resistance valve is not as specified replace the sender gauge. BE67 BODY ELECTRICAL SYSTEM COMBINATION METER LOW OIL PRESSURE WARNING INSPECTION BE0C40F 1. INSPECT LOW OIL PRESSURE WARNING SWITCH (a) Check that there is continuity between terminal and ground with the engine stopped. (b) Check that there is no continuity between terminal and ground with the engine running. HINT: Oil pressure should be over 29 kPa (0.3 kgf/ cm2, 4.3 psi) If operation is not as specified, replace the switch. 2. INSPECT LOW OIL PRESSURE WARNING LIGHT (a) Disconnect the connector from the warning switch and ground terminal on the wire harness side connector. (b) Turn the ignition switch ON, check that the warning light lights up. If the warning light does not light up, test the bulb or inspect wire harness. BE68 BODY ELECTRICAL SYSTEM COMBINATION METER BRAKE FLUID LEVEL WARNING INSPECTION BE0C60C 1. (a) (b) (c) INSPECT BRAKE FLUID LEVEL WARNING SWITCH Remove the reservoir tank cap and strainer. Disconnect the connector. Check that there is no continuity between terminals with the switch OFF (float up). (d) Use syphon, etc. to take fluid out of the reservoir tank. (e) Check that there is continuity between terminals with the switch ON (float down). (f) Pour the fluid back in the reservoir tank. If operation is not as specified, replace the switch. 2. INSPECT BRAKE WARNING LIGHT (a) Disconnect the connector from the brake fluid warning switch. (b) Release the parking brake pedal. (c) Connect terminals on the wire harness side of the level warning switch connector. (d) Start the engine, check that the warning light lights up. If the warning light does not light up, test the bulb or wire harness. PARKING BRAKE WARNING INSPECTION BEOCS0A 1. INSPECT PARKING BRAKE SWITCH (a) Check that there is continuity between terminal and switch body with the switch ON (switch pin released). (b) Check that there is no continuity between terminal and switch body with the switch OFF (switch pin pushed in). If operation is not as specified, replace the switch or inspect ground point. 2. INSPECT PARKING BRAKE WARNING LIGHT (a) Disconnect the connector from the parking brake switch and the brake fluid warning switch. (b) Ground terminal on the wire harness side connector. (c) Start the engine, check that the warning light lights up. If the warning light does not light up, test the bulb or inspect wire harness. BE69 BODY ELECTRICAL SYSTEM COMBINATION METER LIGHT FAILURE WARNING INSPECTION BE11M0A 1. INSPECT LIGHT FAILURE SENSOR RELAY CIRCUIT Disconnect the connector from the sensor and inspect the connector on the wire harness side, as shown. Condition Specified condition Constant Constant Constant Constant Constant Light control switch OFF Light control switch TAIL or HEAD Engine condition Stop Engine condition Running Stop light switch OFF Stop light switch ON * Continuity * Continuity * Continuity * Continuity *Continuity No voltage Battery positive voltage No voltage Battery positive voltage No voltage Battery positive voltage No voltage Battery positive voltage Ignition switch LOCK or ACC Ignition switch ON Tester connection to terminal number 1Ground 2Ground 7Ground 12Ground 11Ground 5Ground 5Ground 4Ground 4Ground 9Ground 10Ground 9Ground 10Ground 8Ground 8Ground *: There is resistance because this circuit is grounded through the bulb. If circuit is as specified, replace the sensor. If the circuit is not as specified, inspect the circuits connected to other parts. 2. INSPECT LIGHT FAILURE WARNING LIGHT (a) Disconnect the connector from the light failure sensor and ground terminal 4 on the wire harness side connector. (b) Start the engine, check that the warning light lights up. If the warning light does not light up, test the bulb or inspect wire harness. BE70 BODY ELECTRICAL SYSTEM COMBINATION METER RHEOSTAT LIGHT CONTROL VOLUME INSPECTION BE11N04 1. COMBINATION METER ADJUSTMENT INSPECTION (a) Connect the positive (+) lead from the battery to terminal 2 and the negative () lead to terminal 4. (b) Connect the positive (+) lead from the voltmeter to terminal 2 and negative () lead to terminal 3. (c) Turn the rheostat knob and check that the voltage changes 2. ILLUMINATION ADJUSTMENT INSPECTION (a) Connect the positive (+) lead from the battery to terminal 2 and 5 and negative () lead to terminal 4. (b) Connect the positive (+) lead from the voltmeter to terminal 5 and negative () lead to terminal 7. (c) Turn the rheostat knob and check that the voltage changes. 3. INSPECT TAIL CANCEL (a) Connect the ohmmeter to terminals 5 and 6. (b) Turn the rheostat knob fully clockwise and check that current flow stops. If switch is not specified, replace the volume. OPEN DOOR WARNING INSPECTION BE11P0A 1. INSPECT DOOR COURTESY SWITCH Switch position Tester connection to terminal number 12 23 Specified condition Continuity ON (Switch pin released) OFF (Switch pin pushed in) No continuity If continuity is not as specified, replace the switch. BE71 BODY ELECTRICAL SYSTEM COMBINATION METER 2. INSPECT OPEN DOOR WARNING LIGHT Disconnect the connector from the door courtesy switch, and ground terminal 1 on the wire harness side connector and check that the warning light lights up. If the warning light does not light up, inspect the bulb or wire harness. ENGINE OIL LEVEL WARNING INSPECTION BE0CG07 1. INSPECT ENGINE OIL LEVEL WARNING SWITCH CONTINUITY (a) Check that there is continuity between terminal with the switch each position. (b) Heat the switch to above 60VC (140VF) in an oil bath. (c) Check that there is continuity between terminals with the switch ON (float up). (d) Check that there is no continuity between terminals with the switch OFF (float down). If operation is not as specified, replace the switch. 2. INSPECT ENGINE OIL LEVEL WARNING SWITCH CIRCUIT Disconnect the switch connector and inspect the connector on wire harness side, as shown. Condition Specified condition Constant Continuity Tester connection to terminal number 2Ground If continuity is not as specified, inspect the wire harness or ground point. BE72 BODY ELECTRICAL SYSTEM COMBINATION METER 3. (a) (b) (c) INSPECT ENGINE OIL LEVEL WARNING LIGHT Disconnect the connector from the switch. Ground terminal 1 on the wire harness connector. Turn the ignition switch ON. Check that the warning light lights up approximately 40 seconds later. If the warning light does not light up, inspect bulb or wire harness. INTEGRATION RELAY INSPECTION BE2A701 1. INSPECT INTEGRATION RELAY OPERATION Seat belt warning (a) Connect the positive (+) lead from the battery to terminals 1 and 7. (b) Connect the terminal 7 to terminal 9 through the 3.4 W test bulb. (c) Connect the negative () lead from the battery to terminal 10. (d) Check that the bulb lights and the chime sounds for 4 8 seconds. (e) Return to step (a), and operate the chime again. (f) Connect the negative () lead from the battery to terminal 5. (g) Check that the chime stops sounding and bulb stops lighting. HINT: Check the chime and bulb within a period of 4 to 8 seconds. If operation is not as specified, replace the relay. Key unlock warning (a) Connect the positive (+) lead from the battery to terminal 1. (b) Connect the negative () lead from the battery to terminal 5,6 and 10. (c) Check the chime sounds. (d) Disconnect the negative () lead from the battery to terminal 6. (e) Check that the chime stops sounding. BE73 BODY ELECTRICAL SYSTEM COMBINATION METER (f) Connect the negative () lead from the battery to terminal 6. (g) Disconnect the negative () lead from the battery to terminal 5. (h) Check that the chime stops sounding. If operation is not as specified, replace the relay. 2. INSPECT INTEGRATION RELAY CIRCUIT Remove the relay from the junction block No.1 and inspect the connectors on the junction block side. Tester connection to terminal number 5Ground 5Ground 6Ground 6Ground 8Ground 8Ground 10Ground 1Ground 9Ground 9Ground 7Ground 7Ground Condition Specified condition Ignition key Set Ignition key remove Driver's door open Driver's door close Driver's seat belt fasten Driver's seat belt unfasten Constant Constant Ignition switch ON Ignition switch LOCK or ACC Ignition switch ON Ignition switch LOCK or ACC Continuity No continuity Continuity No continuity Continuity No continuity Continuity Battery positive voltage Battery positive voltage No voltage Battery positive voltage No voltage If circuit is not as specified, trying replacing the relay with a new one. 3. (a) (b) (c) INSPECT SEAT BELT WARNING LIGHT Disconnect the connector from the seat belt warning relay. Ground terminal 9 on the wire harness side connector. Turn the ignition switch ON, check that the warning light light up. If the warning light does not light up, inspect the bulb or wire harness. BE74 BODY ELECTRICAL SYSTEM COMBINATION METER BUCKLE SWITCH INSPECTION BE0CM08 1. INSPECT BUCKLE SWITCH CONTINUITY (a) Check that there is continuity between terminals 1 and 2 on the switch side connector with the switch ON (belt fastened). (b) Check that there is no continuity between terminals 1 and 2 on the switch side connector with the switch OFF (belt unfastened). If operation is not as specified, replace the seat belt inner. INSPECT BUCKLE SWITCH CIRCUIT Disconnect the connector from switch and inspect the connector on wire harness side, as shown. If the circuit is not as specified, inspect the circuits connected to other parts. 2. Tester connection to terminal number Condition Specified condition 2Ground Turn the ignition switch ON Ground terminal 2 and turn the ignition switch ON Constant Chime sounds for 4 8 sec. No chime sound Continuity WINDOW WASHER LEVEL WARNING SWITCH INSPECTION BE11804 INSPECT WINDOW WASHER LEVEL WARNING SWITCH (a) Check that there is no continuity between terminals with the switch OFF (float up). (b) Check that there is continuity between terminals with the switch ON (float down). If operation is not as specified, replace the switch. BE75 BODY ELECTRICAL SYSTEM COMBINATION METER TROUBLESHOOTING BE11T04 1. 2. 3. 4. 5. 6. Precautions When checking voltage, resistance, etc., use a high impedance type tester (It is impossible with a simple tester). When the ignition switch is turned to START, all meters will go out but this is normal. When replacing the internal mechanism (computer parts) of the meter, be careful that no part of your body or clothing comes in contact with the terminals of the leads from the IC, etc. of the replacement parts (spare parts). Do not disconnect the battery while the engine is running as this would cause an instant reverse charge, resulting in damage to the components. Always disconnect the battery terminals before pulling apart connectors or terminals. To prevent damage, handle meters with care. Troubleshooting / Combination Meter All Meters, Gauges, , g , and Illuminations Speedometer Tachometer Fuel gauge Fuel Level Warning Trouble No display at all. The 4 indicator needles do not light up. One indicator needle does not light up. The entire character plate is not illuminated at all. The character plate is illuminated on one side only. Brightness does not change even when light control switch is operated (OFF TAIL). Brightness does not change even when rheostat volume is turned. Remains dimmed when the light control switch is turned OFF. Does not go out while starter running. Speedometer does not operate while driving. Display is faulty. Vehicle speed signal (4P) faulty. Tachometer does not operate while engine running. Display is faulty. Does not operate or operation is abnormal. Warning light does not light up or always light up. Refer to 1 Replace circuit plate 2 Replace circuit plate 3 4 5 Replace circuit plate 6 7 Replace Meter Lens 8 9 Replace Meter Lens 10 11 BE76 Engine Oil Level g Warning ECT PWR Indicator CRUISE MAIN Indicator O/D OFF Indicator Shift Position Indicator TRAC OFF Indicator ABS Warning HIBeam Indicator Turn Signal Indicator Seat Belt Warning Chime Key Unlock Warning Chime Window Washer Warning Engine Coolant Temperature Gauge Odometer and twin trip meter Abnormal operation or warning does not light up. Abnormal operation or chime does not operate. Trouble Does not operate or operation is abnormal. BODY ELECTRICAL SYSTEM Abnormal operation or indicator does not light up. Abnormal operation or warning does not light up. Abnormal operation or indicator does not light up. Abnormal operation or indicator does not light up. Abnormal operation or chime does not operate. Abnormal operation or indicator does not light up. Abnormal operation or indicator does not light up. Warning light does not light up. Warning light always light up. Abnormal operation or indicator does not light up. Abnormal operation or indicator does not light up. Display does not alter during driving. Display is reset whenever ignition switch is turned off. Abnormal display COMBINATION METER 13 14 Replace Odometered trip meter 15 16 17 See page BE72 See page BE72 Refer to 21 22 23 24 20 19 18 12 25 BE77 BODY ELECTRICAL SYSTEM COMBINATION METER 1 ALL METERS, GAUGES, AND ILLUMINATIONS No display at all. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. Turn ignition switch ON. Do warning lights light up? No No Is GAUGE fuse normal? Yes Open circuit in wire harness between GAUGE fuse and combination meter. Yes COMBINATION METER Disconnect connector "B" from meter. Inspect connector on wire harness side as follows. Replace GAUGE fuse and turn ignition switch ON. Is fuse normal? Yes GAUGE fuse faulty. No Disconnect connectors from meter and replace GAUGE fuse. Then turn ignition switch ON. Is fuse normal? Yes Replace circuit plate. Then recheck system. Short circuit in wire harness on vehicle side. No INSPECT GROUND CIRCUIT Is there continuity (no resistance) between terminal B23 and ground? Yes No S S Open circuit in wire harness between terminal B23 of meter and ground. Ground faulty. INSPECT POWER SOURCE Turn ignition switch ON. Is there battery positive voltage between terminals B1 and B23? Yes No Open circuit in wire harness between terminal B1 of meter and GAUGE fuse. Replace circuit plate. Then recheck system. BE78 BODY ELECTRICAL SYSTEM COMBINATION METER 2 ALL METERS, GAUGES AND ILLUMINATIONS One indicator needle does not light up. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. Is LED OK? Yes Disconnect connector "B" from meter. Inspect connector on wire harness side as follows. Yes INSPECT POWER SOURCE Turn ignition switch ON. Is there battery positive voltage between terminals B1 and B23? Yes INSPECT POWER SOURCE Turn ignition switch ON. Is there battery positive voltage between terminals B1 and B23? Yes Replace circuit plate. Then recheck system. Open circuit in wire harness between terminal B1 of meter and GAUGE fuse. S S Open circuit in wire harness between terminals B23 of meter and ground. Ground faulty. No Replace the LED. Then recheck system. No No 3 ALL METERS, GAUGES, AND ILLUMINATIONS The character plate is illuminated on one side. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. Is bulb OK? Yes Disconnect connector "B" from meter. Inspect connector on wire harness side as follows. No Replace the bulb. Then recheck system. INSPECT GROUND CIRCUIT Is there continuity (no resistance) between terminal B23 and ground? Yes INSPECT POWER SOURCE Turn ignition switch ON. Is there battery positive voltage between terminals B1 and B23? Yes Replace circuit plate. Then recheck system. No S S Open circuit in wire harness between terminal B23 of meter and ground. Ground faulty. No Open circuit in wire harness between terminal B1 of meter and GAUGE fuse. BE79 BODY ELECTRICAL SYSTEM COMBINATION METER 4 ALL METERS AND GAUGES AND ILLUMINATIONS Brightness does not change even when light control switch is operated. (OFF TAIL) HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. COMBINATION METER Disconnect connector "B" from meter. Inspect connector on wire harness side as follows. INSPECT TAILLIGHT SIGNAL CIRCUIT Does voltage change between terminal B2 and ground as follows? Condition Light control switch position OFF TAIL or HEAD Yes Replace circuit plate. Then recheck system. Voltage No voltage Battery positive voltage No Taillight signal circuit faulty on vehicle side. Inspect illumination light. BE80 BODY ELECTRICAL SYSTEM COMBINATION METER 5 ALL METERS AND GAUGES AND ILLUMINATIONS Brightness does not change even when rheostat volume is turned. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. RHEOSTAT LIGHT CONTROL VOLUME INSPECT RHEOSTAT LIGHT CONTROL VOLUME Is operation normal? Yes COMBINATION METER Connect connector to rheostat volume. Disconnect connector "B" from meter. Inspect connector on wire harness side as follows. No Replace rheostat light control volume. Then recheck system. Turn ignition switch ON. Does voltage change evenly between terminal B2 and B4 when rheostat knob turned? Yes Replace circuit plate. Then recheck system. No Wire harness faulty between terminal B2 of meter and terminalB4 of rheostat volume and rheostat light control. BE81 BODY ELECTRICAL SYSTEM COMBINATION METER 6 ALL METERS, GAUGES AND ILLUMINATIONS Does not go out while starter running. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. Disconnect connector "B" from meter. Inspect connector on wire harness side as follows. Turn ignition switch START. Is there battery voltage between terminal B12 and ground or B23? Yes Yes No Wire harness faulty between terminal B12 of meter and park/neutral position SW. Replace circuit plate. Then recheck system. 7 SPEEDOMETER Speedometer does not operate while driving. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. INSPECT ODOMETER OPERATION Does odometer operate while driving? No COMBINATION METER Yes INSPECT TRIP METER OPERATION Does trip meter operate while driving? Yes No Disconnect connectors "B" from meter. Inspect connector on wire harness side as follows. Replace speedometer. Then recheck system. Go to step 7A. Jack up the vehicle. Turn ignition switch ON. Rotate propeller shaft. Does the voltage between terminals B13 and B15 change (approx. 0 V to 11 V or more) per revolution of propeller shaft? No Yes Replace circuit plate. Then recheck system. CONTINUED ON NEXT PAGE BE82 BODY ELECTRICAL SYSTEM COMBINATION METER CONTINUED FROM PREVIOUS PAGE SPEED SENSOR INSPECT SPEED SENSOR OPERATION Is operation normal? Yes S S Inspect speed sensor Inspect wire harness between terminal B13 B15 and speed sensor. No Replace speed sensor. Then recheck system. 7A COMBINATION METER (a) Remove combination meter, and connect the wire harness side connector terminals B1, B13, B15 and B23 to the meter side connectors by lead wire. (b) Jack up the vehicle and turn the ignition switch ON. (c) Rotate propeller shaft. (d) Does the voltage between terminal B13 and B15 change (approx. 0 V to 11 V or more) per revolution of propeller shaft? Yes No Replace speedometer. Then recheck system. Replace circuit plate. Then recheck system. BE83 BODY ELECTRICAL SYSTEM COMBINATION METER 8 SPEEDOMETER Vehicle speed signal (4P) faulty. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. INSPECT ODOMETER OPERATION Does odometer operate while driving? Yes No See chart 19. COMBINATION METER Remove meter with connector connected. Inspect connector "B" from back side as follows. Jack up the vehicle. Turn ignition switch ON. Rotate propeller shaft. Does the voltage between terminal B14 and ground change (approx. 0 V to 5 V or more) per revolution of propeller shaft? Yes Wire harness faulty between terminal B14 of meter and *ECU or *ECU faulty. No Replace circuit plate. Then recheck system. *S S ECM ABS and TRAC ECU S S Suspension ECU Cruise Control ECU S Power steering ECU 9 TACHOMETER Tachometer does not operate while engine running. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. *: Disconnect connectors "B" from meter. Inspect connector on wire harness side as follows. An electrical tester with measurements in Hz is necessary for this inspection. REFERENCE: TOYOTA ELECTRICAL TESTER (0908200015) No Wire harness faulty between terminal B9 of meter and igniter. *INSPECT TACHOMETER CIRCUIT With engine running, does voltage between terminals B9 and B23 fluctuate? Yes Replace circuit plate. Then recheck system. BE84 BODY ELECTRICAL SYSTEM COMBINATION METER 10 FUEL GAUGE Does not operate or operation is abnormal. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. INSPECT SENDER GAUGE OPERATION Is operation normal? Yes INSPECT RECEIVER GAUGE OPERATION Is operation normal? No Replace circuit plate. Then recheck system. Yes Wire harness faulty between meter and sender gauge. No Replace sender gauge. Then recheck system. 11 FUEL LEVEL WARNING Warning light does not light up or always lights up. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. Disconnect connector "A" from meter. Inspect connector on combination meter side as follows. Ground terminal A8 and turn ignition switch ON. Does fuel level warning light light up? Yes INSPECT FUEL LEVEL WARNING LIGHT Is operation normal? Yes INSPECT FUEL LEVEL WARNING SWITCH If operation is not as specified, replace the switch. Then recheck system. No Is bulb OK? No Replace the bulb. Then recheck system. Yes No Wire harness faulty between terminal A8 of meter and sender gauge. Yes Replace circuit plate. Then recheck system. BE85 BODY ELECTRICAL SYSTEM COMBINATION METER 12 ENGINE COOLANT TEMPERATURE RECEIVER GAUGE Does not operate or operation is abnormal. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. INSPECT SENDER GAUGE GROUND CONDITION Is there continuity (no resistance) between gauge body and engine block? Yes INSPECT RECEIVER GAUGE OPERATION Is operation normal? Replace sender gauge. Then recheck system. No Sender gauge ground condition faulty. Yes No COMBINATION METER Disconnect connector "B" from the meter. Inspect connector on wire harness side. Does the continuity between terminal B21 and ground? Yes Does the continuity between terminal B22 and ground? Yes INSPECT RECEIVER GAUGE RESISTANCE Is resistance normal? Yes Replace circuit plate. Then recheck system. No Wire harness faulty between terminal B21 of meter and sender gauge. No Wire harness faulty between terminal B22 of meter and ground. No Replace receiver gauge. Then recheck system. BE86 BODY ELECTRICAL SYSTEM COMBINATION METER 13 ODOMETER AND TWIN TRIP METER Display does not alter during driving. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. INSPECT SPEEDOMETER OPERATION Does speedometer operate while driving? No COMBINATION METER Disconnect connector "B" from meter. Inspect connector on wire harness side as follows. Go to step 13A. Yes Jack up the vehicle. Turn ignition switch ON. Rotate the propeller shaft. Are there voltage between terminals B13 and B15 change (approx. 0 V to 11 V or more) per revolution of propeller shaft? No SPEED SENSOR INSPECT SPEED SENSOR OPERATION Is operation normal? Yes S S Inspect speed sensor power source. Inspect wire harness between terminal B13 B15 and speed sensor. Replace circuit plate. Yes Then recheck system. No Replace speed sensor. Then recheck system. 13A (a) Remove combination meter, and connect the wire harness side connector terminal B1, B13, B15 and B23 to the meter side connectors by lead wire. (b) Jack up the vehicle and turn the ignition switch ON. (c) Rotate propeller shaft. (d) Does the voltage between terminal B13 of inspection land and terminal B15 change (approx. 0 V to 11 V or more) per revolution of propeller shaft? Yes Replace trip meter. Then recheck system. No Replace circuit plate. Then recheck system. BE87 BODY ELECTRICAL SYSTEM COMBINATION METER 14 ODOMETER AND TWIN TRIP METER Display is reset whenever ignition switch is turned off. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. Is DOME fuse normal? Yes No COMBINATION METER Disconnect connector "B" from meter. Inspect connector on wire harness side as follows. Disconnect connector "B" from meter and replace DOME fuse. Is fuse normal? Short circuit in wire harness on vehicle side. No Replace DOME fuse. Is fuse normal? Yes DOME fuse faulty. No Yes Replace circuit plate. Then recheck system. INSPECT POWER SOURCE Is there battery positive voltage between terminals B11 and B23? Yes Replace circuit plate. Then recheck system. No Open circuit in wire harness between terminal B11 and B23. BE88 BODY ELECTRICAL SYSTEM COMBINATION METER 15 ENGINE OIL LEVEL WARNING Warning light does not light up. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. COMBINATION METER Disconnect connector "C" from meter. Turn ignition switch ON. Does engine oil level warning light light up after approximately 40 sec.? No Is bulb OK? No Replace the bulb. Then recheck system. Yes Replace circuit plate. Then recheck system. Yes INSPECT ENGINE OIL LEVEL WARNING SWITCH OPERATION Is operation normal? Yes Wire harness faulty between terminal C7 of meter and switch or between switch and ground. Replace switch. Then recheck system. No BE89 BODY ELECTRICAL SYSTEM COMBINATION METER 16 ENGINE OIL LEVEL WARNING Warning light always lit up. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. After turning the ignition switch ON, start the engine within 15 seconds. Does the warning light go when the engine has started? No (Warning light goes off when the engine is started, but it comes on again within 15 seconds or more after the ignition switch is turned ON.) Yes Disconnect generator connector. Does warning light light up? No Inspect generator. Yes Wire harness faulty. Ground terminal C7 of meter. Does warning light light up? No Yes Replace circuit plate. Then recheck system. INSPECT ENGINE OIL LEVEL WARNING SWITCH OPERATION Is operation normal? No Replace switch. Then recheck system. Yes Wire harness faulty between terminal C7 of meter and switch or between switch and ground. BE90 BODY ELECTRICAL SYSTEM COMBINATION METER 17 ECT PWR INDICATOR Abnormal operation or indicator does not light up. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. Disconnect connector "C" from meter. Inspect connector on wire harness side as follows. Turn ignition switch ON. Is there battery voltage between terminal C3 and ground with the pattern select switch in PWR position? Yes Is bulb OK? Yes Replace circuit plate. Then recheck system. No No ECT pattern indicator signal circuit faulty. Replace the bulb. Then recheck system. 18 CRUISE MAIN INDICATOR Abnormal operation or indicator does not light up. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. Disconnect connector "A" from meter. Inspect connector on combination meter side as follows. Ground terminal A20 and turn ignition switch ON. Does CRUISE MAIN indicator light up? No Yes Inspect the wire harness between terminal A20 of meter and cruise control ECU or inspect ECU. Is bulb OK? Yes Replace circuit plate. Then recheck system. No Replace the bulb. Then recheck system. BE91 BODY ELECTRICAL SYSTEM COMBINATION METER 19 O/D OFF INDICATOR Abnormal operation or indicator does not light up. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. Disconnect connector "A" from meter. Inspect connector on combination meter side as follows. Ground terminal A18 and turn ignition switch ON. Does O/D OFF indicator light up? No Yes O/D OFF indicator signal circuit faulty. Is bulb OK? Yes Replace circuit plate. Then recheck system. No Replace the bulb. 20 SHIFT POSITION INDICATOR Abnormal operation or indicator does not light up. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. Disconnect connector "A" from meter. Inspect connector on wire harness side as follows. Turn ignition switch ON. Is there battery voltage between terminals XX and ground with turn shift lever to YY? Shift to YY Terminal XX P A1 R Yes A2 Yes N A3 D A4 2 A5 L A6 Shift position indicator signal circuit faulty. No Is bulb OK? Yes Replace circuit plate. Then recheck system. No Replace the bulb. Then recheck system. BE92 BODY ELECTRICAL SYSTEM COMBINATION METER 21 TRAC OFF INDICATOR Abnormal operation or indicator does not light up. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. Disconnect connector "C" from meter. Inspect connector on combination meter side as follows. Ground terminal C1 and turn ignition switch ON. Does TRAC OFF indicator light up? No Is bulb OK? Yes Replace circuit plate. Then recheck system. Yes Inspect the wire harness between terminal C1 of meter and ABS and TRAC ECU or inspect ECU. No Replace the bulb.Then recheck system. 22 ABS WARNING Abnormal operation or warning light does not light up. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. Disconnect connector "A" from meter. Inspect connector on combination meter side as follows. Ground terminal A21 and turn ignition switch ON. Does ABS indicator light? No Is bulb OK? Yes Replace circuit plate. Then recheck system. Yes Inspect the wire harness between terminal A21 of meter and ABS and TRAC ECU or inspect ECU. No Replace the bulb. Then recheck system. BE93 BODY ELECTRICAL SYSTEM COMBINATION METER 23 HIGH BEAM INDICATOR Abnormal operation or indicator does not light up. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. Disconnect connector "C" from meter. Inspect connector on wire harness side as follows. Turn light control switch HEAD. Is there battery positve voltage between terminals XX and ground with dimmer switch to HI and FLASH? Dimmer SW to Terminal XX HI C6 Yes Is bulb OK? Yes Replace circuit plate. Then recheck system. FLASH C6 HIbeam indicator signal circuit faulty. No Inspect the headlight system. No Replace the bulb. Then recheck system. 24 TURN SIGNAL INDICATOR Abnormal operation or indicator does not light up. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. Disconnect connector "C" from meter. Inspect connector on wire harness side as follows. Turn ignition switch ON. Is there battery positive voltage between terminals XX and ground with the turn signal lever to left and right? Turn signal to Terminal XX Left C9 Yes Is bulb OK? Yes Replace circuit plate. Then recheck system. Right C10 Turn signal indicator signal circuit faulty. No Inspect the turn signal and hazard warning light system. No Replace the bulb. Then recheck system. BE94 BODY ELECTRICAL SYSTEM COMBINATION METER 25 WINDOW WASHER LEVEL WARNING SWITCH Abnormal operation or indicator does not light up. HINT: While carrying out the following inspection, make certain that the connectors and terminals are properly connected. Disconnect connector "A" from meter. Inspect connector on combination meter side as follows. Ground terminal A9 and turn ignition switch ON. Does coolant level warning light light up? No Is bulb OK? Yes INSPECT WINDOW WASHER LEVEL WARNING SWITCH Is operation normal? Yes Replace the circuit plate. Yes Wire harness faulty between terminal A9 of meter and switch or between switch and ground. No Replace the bulb. Then recheck system. Replace the switch. Then recheck system. No BE95 BODY ELECTRICAL SYSTEM COMBINATION METER Troubleshooting/Warning Lights and Indicator Light in Meter Cluster You will find the cause of trouble more easily using the table shown below. In this table, the numbers indicate the order priority of the causes in trouble. Check each part in the order shown. If necessary, replace the parts. BE11 BE69 BE70 BE68 BE67 *1: *2: *3: *4: *5: Center Airbag Sensor Assembly Generator ABS and TRAC ECU ECM Buckle Switch BE68 BE73 BE9 BE9 BE96 BODY ELECTRICAL SYSTEM POWER WINDOW CONTROL SYSTEM POWER WINDOW CONTROL SYSTEM PARTS LOCATION BE11U04 TROUBLESHOOTING Key off ower Keyoff power window does not o erate operate "Window Lock System" does not operate "Window Lock Illumination" does not light up Only one window glass does not move "One Touch Power Window System" does not operate *2 Power window does not operate *1 Power window does not operate *1: Door Lock does not operate. *2: Door Lock is normal. Trouble The table below will be useful for you in troubleshooting these electrical problems. The most likely causes of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and replace the part when it is found to be faulty. BODY ELECTRICAL SYSTEM Parts name 1. ALT Fuse 2. POWER Fuse 3. Theft Deterrent and Door Lock Control ECU 4. Wire Harness 1. POWER Fuse 2. Ignition Switch 3. Theft Deterrent and Door Lock Control ECU 4. Power Window Main Relay 5. Power Window Master Switch 6. Wire Harness 1. Power Window Master Switch 1. Power Window Master Switch 2. Power Window Switch 3. Power Window Motor 4. Wire Harness 1. Power Window Master Switch 1. Power Window Master Switch 1. POWER Fuse 2. Theft Deterrent and Door Lock Control ECU 3. Ignition Switch 4. Door Open Detection Switch 5. Wire Harness POWER WINDOW CONTROL SYSTEM (See page) (BE11) (BE9) (BE226) (BE98) (BE98) (BE9) (BE226) (BE14) (BE216) (BE98) (BE98) (BE101) (BE103) (BE9) (BE14) (BE226) (BE102) (BE98) BE97 BE0430E Switch position Switch position Switch position Switch position 1. Front Driver's Switch (Window unlock) INSPECT POWER WINDOW MASTER SWITCH CONTINUITY Front Passenger's Switch (Window unlock) Front Driver's Switch (Window lock)/Continuity DOWN DOWN OFF OFF UP UP Tester connection to terminal number 38 46 34 46 68 34 Tester connection to terminal number 38 46 34 46 68 34 Continuity Continuity Continuity Continuity Continuity Continuity Specified condition Specified condition BE0CN04 BE98 BODY ELECTRICAL SYSTEM POWER WINDOW MASTER SWITCH INSPECTION Front Passenger's Switch (Window lock) UP OFF DOWN DOWN OFF UP POWER WINDOW CONTROL SYSTEM Tester connection to terminal number 811 1113 813 Tester connection to terminal number 811 413 411 413 813 411 Continuity Continuity Continuity Continuity Continuity Continuity Specified condition Specified condition BE99 BODY ELECTRICAL SYSTEM POWER WINDOW CONTROL SYSTEM Rear Left Switch (Window unlock) Switch position UP OFF DOWN Tester connection to terminal number 810 124 124 410 128 410 Specified condition Continuity Continuity Continuity Rear Left Switch (Window lock) Switch position UP OFF DOWN Specified condition Continuity Continuity Continuity Tester connection to terminal number 810 1210 128 Rear Right Switch (Window unlock) Tester connection to terminal number 78 414 47 414 814 47 Switch position UP Specified condition Continuity Continuity Continuity OFF DOWN Rear Right Switch (Window lock) Switch position UP OFF DOWN Tester connection to terminal number 78 714 814 Specified condition Continuity Continuity Continuity If continuity is not as specified, replace the master switch. 2. INSPECT POWER WINDOW MASTER SWITCH ILLUMINATION (a) Set the window lock switch to the unlock position. (b) Connect the positive (+) lead from the battery to terminal 8 and the negative () lead to terminal 4, check that all the illuminations light up. BE100 BODY ELECTRICAL SYSTEM POWER WINDOW CONTROL SYSTEM (c) Set the window lock switch to the lock position, check that all the passenger's power window switch illuminations go out. If operation is not as specified, replace the master switch. 3. INSPECT ONE TOUCH POWER WINDOW SYSTEM CURRENT OF CIRCUIT Using an ammeter. (a) Disconnect the connector from the master switch. (b) Connect the positive (+) lead from the ammeter to terminal 3 on the wire harness side connector and the negative () lead to negative () terminal of the battery. (c) Connect the positive (+) lead from the battery to terminal 6 on the wire harness side connector. (d) As the window goes down, check that the current flow is approximately 7 A. (e) Check that the current increases up to approximately 14.5 A or more when the window stops going down. HINT: The circuit breaker opens some 440 seconds after the window stops going down, so that check must be made before the circuit breaker operates. If the operation is as specified, replace the master switch. Using an ammeter with a currentmeasuring probe. (a) Remove the master switch with connector connected. (b) Attach a currentmeasuring probe to terminal 8 of the wire harness. (c) Turn the ignition switch ON and set the power window switch in the down position. (d) As the window goes down, check that the current flow is approximately 7 A. (e) Check that the current increases up to approximately 14.5 A or more when the window stops going down. HINT: The circuit breaker opens some 440 seconds after the window stops going down, so that check must be made before the circuit breaker operates. If operation is as specified, replace the master switch. BE101 BODY ELECTRICAL SYSTEM POWER WINDOW CONTROL SYSTEM 4. INSPECT POWER WINDOW MASTER SWITCH CIRCUIT Disconnect the connector from the master switch and inspect the connector on the wire harness side, as shown. Tester connection to terminal number 8Ground 4Ground 5Ground Condition Specified condition Ignition switch ON Constant Battery positive voltage Continuity If the circuit is not as specified, inspect the circuits connected to other parts. POWER WINDOW SWITCH INSPECTION BE06707 1. INSPECT POWER WINDOW SWITCH CONTINUITY Switch position UP Tester connection to terminal number 13 25 24 13 24 35 Specified condition Continuity Continuity Continuity OFF DOWN If continuity is not as specified, replace the switch. BE102 BODY ELECTRICAL SYSTEM POWER WINDOW CONTROL SYSTEM 2. INSPECT POWER WINDOW SWITCH CIRCUIT Disconnect the connector from the switch and inspect the connector on the wire harness side, as shown. Tester connection to terminal number 5Ground 4Ground 4Ground 1Ground 1Ground Condition Specified condition Ignition switch ON Ignition switch ON and master switch OFF Ignition switch ON and master switch UP Ignition switch ON and master switch OFF Ignition switch ON and master switch DOWN Battery positive voltage No voltage Battery positive voltage No voltage Battery positive voltage If the circuit is not as specified, inspect the circuits connected to other parts. POWER WINDOW MAIN RELAY INSPECTION BE0680J Condition Constant Apply B+ between terminals 1 and 2. Tester connection to terminal number 12 35 Specified condition Continuity Continuity INSPECT POWER WINDOW MAIN RELAY CONTINUITY If continuity is not as specified, replace the relay. BE103 BODY ELECTRICAL SYSTEM POWER WINDOW CONTROL SYSTEM POWER WINDOW MOTOR INSPECTION BE11V03 1. INSPECT POWER WINDOW MOTOR OPERATION Left Side Door (a) Connect the positive (+) lead from the battery to terminal 1 and the negative () lead to terminal 2, check that the motor turns counterclockwise. (b) Reverse the polarity, check that the motor turns clockwise. If operation is not as specified, replace the motor. Right Side Door (a) Connect the positive (+) lead from the battery to terminal 1 and the negative () lead to terminal 2, check that the motor turns clockwise. (b) Reverse the polarity, check that the motor turns counterclockwise. If operation is not as specified, replace the motor. Rear Left Side Door See page dealing with Front Passenger's Door. Rear Right Side Door See page dealing with Front Passenger's Door. 2. INSPECT POWER WINDOW MOTOR CIRCUIT BREAKER OPERATION Driver's Door (a) Disconnect the connector from the master switch. (b) Connect the positive (+) lead from the battery to terminal 6 and the negative () lead to terminal 3 on the wire harness side connector and raise the window to the fully closed position. BE104 BODY ELECTRICAL SYSTEM POWER WINDOW CONTROL SYSTEM (c) Continue to apply voltage, check that there is a circuit breaker operation noise within approximately 4 to 40 seconds. (d) Reverse the polarity, check that the window begins to descend within approximately 60 seconds. If operation is not as specified, replace the motor. Passenger 's Door (a) Disconnect the connector from the power window switch. (b) Connect the positive (+) lead from the battery to terminal 3 and the negative () lead to terminal 2 on the wire harness side connector, and raise the window to the fully closed position. (c) Continue to apply voltage, check that there is a circuit breaker operation noise within approximately 4 to 40 seconds. (d) Reverse the polarity, check that the window begins to descend within approximately 60 seconds. If operation is not as specified, replace the motor. BE105 BODY ELECTRICAL SYSTEM POWER WINDOW CONTROL SYSTEM 3. INSPECT POWER WINDOW MOTOR CIRCUIT (a) Disconnect the connector from the motor. (b) Connect the connector to the master switch and power window switch. (c) Inspect the connector on the wire harness side as shown. (d) Turn the ignition switch ON. Tester connection to terminal number 1Ground 1Ground 1Ground 1Ground 2Ground 2Ground 2Ground 2Ground Condition Specified condition Master switch DOWN Master switch UP or OFF *Power window switch DOWN *Power window switch UP or OFF Master switch UP Master switch DOWN or OFF *Power window switch UP *Power window switch DOWN or OFF Battery positive voltage No voltage Battery positive voltage No voltage Battery positive voltage No voltage Battery positive voltage No voltage *: Set the window lock switch to the unlock position. If the circuit is not as specified, inspect the circuits connected to other parts. THEFT DETERRENT AND DOOR LOCK CONTROL ECU INSPECTION BE11W04 (a) Inspect ECU Power Source Circuit. (See page dealing with THEFT DETERRENT SYSTEM.) (b) Inspect Actuator Power Source Circuit. (See page dealing with DOOR LOCK CONTROL SYSTEM.) (c) Inspect Ignition Switch Circuit. (See page dealing with IGNITION SWITCH.) (d) Inspect Door Open Detection Switch Circuit. (See page dealing with DOOR LOCK CONTROL SYSTEM.) If circuit is as specified, inspect ECU operation. BE106 BODY ELECTRICAL SYSTEM SEAT HEATER SYSTEM SEAT HEATER SYSTEM PARTS LOCATION BE11X07 TROUBLESHOOTING BE06G04 The table below will be useful for you in troubleshooting these electrical problems. The most likely causes of the malfunction are shown in the order of their probability. Inspect each part in the order shown and replace the part when it is found to be faulty. Trouble Seat heaters do not operate (Driver's and Passenger's) Driver's seat heater does not operate Passenger's seat heater does not operate Seat heater temperature is too hot Parts name 1. SEAT HTR Fuse 2. Wire Harness 1. Seat Heater Switch (Driver's) 2. Seat Heater 3. Wire Harness 1. Seat Heater Switch (Passenger's) 2. Seat Heater 3. Wire Harness 1. Seat Heater (See page) (BE9) (BE107) (BE107) (BE107) (BE107) (BE107) BE107 BODY ELECTRICAL SYSTEM SEAT HEATER SYSTEM SEAT HEATER SWITCH INSPECTION BE11V08 Tester connection to terminal number 13 23 13 23 Condition Switch ON (LEFT) Switch ON (RIGHT) Switch OFF Illumination circuit Tester connection to terminal number 26 36 15 Specified condition Continuity Continuity No continuity Continuity 1. INSPECT SEAT HEATER SWITCH CONTINUITY If continuity is not as specified, replace the switch or bulb. 2. INSPECT SEAT HEATER SWITCH INDICATOR (a) Connect the positive (+) lead from the battery to terminal 2 and 3 and the negative () lead to terminal 4. (b) Check that the indicator light lights up. If operation is not as specified, replace the switch and inspect the circuits connected to other parts. SEAT HEATER INSPECTION BE11Z09 1. INSPECT SEAT CUSHION HEATER CONTINUITY (a) Heat the thermostat with a light. (b) Inspect the seat heater continuity between terminals. Condition Specified condition Seat heater temperature below 30C(86F) Seat heater temperature below 30C(86F) Seat heater temperature above 50C(122F) Seat heater temperature above 40C(104F) Continuity Continuity No continuity No continuity If continuity is not as specified, replace the seat cushion pad. BE108 BODY ELECTRICAL SYSTEM SEAT HEATER SYSTEM 2. INSPECT SEAT BACK CIRCUIT Inspect the seat heater continuity between terminals, as shown. Tester connection to terminal number 13 23 Condition Specified condition Constant Constant Continuity Continuity If continuity is not as specified, replace the seat back pad. BE109 BODY ELECTRICAL SYSTEM ELECTRIC TENSION REDUCER SYSTEM ELECTRIC TENSION REDUCER SYSTEM BE12006 PARTS LOCATION BE12005 TROUBLESHOOTING BE12106 The table below will be useful for you in troubleshooting these electrical problems. The most likely causes of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and replace the part when it is found to be faulty. Tension Reducer does not operate. (Only one side) (BE111) (BE110) Trouble Tension Reducer does not operate. (Driver's and Passenger's) Parts name 1. ECUIG fuse 2. Wire Harness 1. Buckle Switch 2. Tension Reducer Solenoid 3. Wire Harness (See page) (BE9) BE110 BODY ELECTRICAL SYSTEM ELECTRIC TENSION REDUCER SYSTEM TENSION REDUCER SOLENOID INSPECTION BE12206 CAUTION: Do not apply voltage to the connector of the seat belt pretensioner. 1. INSPECT TENSION REDUCER SOLENOID OPERATION (a) Connect the positive (+) lead from the battery to terminal 1, and negative () lead to terminal 2. (b) Pull the belt upward and check that the belt is slowly retracted when released. (c) Disconnect the lead from the battery. (d) Pull the belt upward and check that the belt is retracted more quickly when released than in (b). HINT: Do not tilt the retractor. If the operation is not as specified, replace the front seat outer belt assembly. 2. INSPECT TENSION REDUCER SOLENOID OPERATION Disconnect the tension reducer solenoid connector and inspect the connector on wire harness side, as shown. Tester connection to terminal number 1Ground 1Ground 2Ground 2Ground Condition Specified condition Ignition switch ON Ignition switch ACC or LOCK Buckle switch ON (Belt fastened) Buckle switch OFF (Belt unfastened) Battery positive voltage No voltage Continuity No continuity If circuit is as specified, replace the front seat outer belt assembly. If circuit is not as specified, inspect the circuits connected to other parts. CAUTION: When replacing the front seat outer belt, dispose of the removed parts as prescribed in the RS section. BE111 BODY ELECTRICAL SYSTEM ELECTRIC TENSION REDUCER SYSTEM BUCKLE SWITCH INSPECTION BE12303 1. INSPECT BUCKLE SWITCH CONTINUITY (a) Check that there is continuity between terminals on the switch side connector with the switch ON (belt fastened). (b) Check that there is no continuity between terminals on the switch side connector with the switch OFF (belt unfastened). If operation is not as specified, replace the seat belt inner. 2. INSPECT BUCKLE SWITCH CIRCUIT Disconnect the connector from switch and inspect the connector on wire harness side, as shown. Tester connection to terminal number 1Ground 1Ground 2Ground Condition Specified condition Ignition switch ON Ignition switch ACC or LOCK Constant Battery positive voltage No voltage Continuity If circuit is not as specified, inspect the circuits connected to other parts. BE112 BODY ELECTRICAL SYSTEM DEFOGGER SYSTEM DEFOGGER SYSTEM PARTS LOCATION BE1240A TROUBLESHOOTING BE06Q0K The table below will be useful for you in troubleshooting these electrical problems. The most likely causes of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and replace the part when it is found to be faulty. Trouble All defogger systems do not operate Rear window defogger does not operate Mirror defogger does not operate Parts name 1. GAUGE Fuse 2. DEFOG Fuse 3. Defogger Relay 4. Defogger Switch 5. Wire Harness 1. Defogger Wires 2. Wire Harness 1. MIRHTR Fuse 2. Mirror Defogger 3. Wire Harness (See page) (BE9) (BE9) (BE113) (BE113) (BE114) (BE9) (BE115) BE113 BODY ELECTRICAL SYSTEM DEFOGGER SYSTEM DEFOGGER SWITCH INSPECTION BE1280A INSPECT DEFOGGER SWITCH OPERATION (a) Connect the positive (+) lead from the voltmeter to terminal 5 of connector A and the negative () lead from voltmeter to terminal 5 of connector C. (b) When the switch is off, the voltage should be approx. 12 V. (c) When the switch is on, check that the indicator light lights up and that the voltage is less than 1 V. (d) After 15 minutes, check that the switch is off and the voltage is approx. 12 V. DEFOGGER RELAY INSPECTION BE06T0P INSPECT DEFOGGER RELAY CONTINUITY Condition Constant Apply B+ between terminals 1 and 2. Tester connection to terminal number 12 35 Specified condition Continuity Continuity If continuity is not as specified, replace the relay. BE114 BODY ELECTRICAL SYSTEM DEFOGGER SYSTEM DEFOGGER WIRE INSPECTION BE04U0E INSPECT DEFOGGER WIRE NOTICE: When cleaning the glass, use a soft, dry cloth, and wipe the glass in the direction of the wire. Take care not to damage the wires. Do not use detergents or glass cleaners with abrasive ingredients. When measuring voltage, wind a piece of tin foil around the top of the negative probe and press the foil against the wire with your finger, as shown. (a) Turn the ignition switch ON. (b) Turn the defogger switch ON. (c) Inspect the voltage at the center of each heat wire, as shown. HINT: If there is approximately 10 V, the wire is broken between the center of the wire and the positive (+) end. If there is no voltage, the wire is broken between the center of the wire and ground. (d) Place the voltmeter positive (+) lead against the defogger positive (+) terminal. (e) Place the voltmeter negative () lead with the foil strip against the heat wire at the positive (+) terminal end and slide it toward the negative () terminal end. (f) The point where the voltmeter deflects from zero to several volt is the place where the heat wire is broken. HINT: If the heat wire is not broken, the voltmeter indicates 0 V at the positive (+) end of the heat wire but gradually increases to about 12 V as the meter probe is moved to the other end. Voltage Approx. 5V Approx. 10V or 0V Criteria Okay (No break in wire) Broken wire BE115 BODY ELECTRICAL SYSTEM DEFOGGER SYSTEM DEFOGGER WIRE REPAIR BE06V0E (a) Clean the broken wire tips with a grease, wax and silicone remover. (b) Place the masking tape along both sides of the wire to be repaired. (c) Thoroughly mix the repair agent (Dupont paste No. 4817). (d) Using a fine tip brush, apply a small amount to the wire. (e) After a few minutes, remove the masking tape. (f) Allow the repair to stand at least 24 hours. MIRROR DEFOGGER INSPECTION BE06X0B 1. INSPECT MIRROR DEFOGGER OPERATION (a) Connect the positive (+) lead from the battery to terminal 5 and the negative () lead to terminal 1. (b) Check that the mirror becomes warm. HINT: It will take a short time for the mirror to become warm. If the mirror does not become warm, replace the mirror assembly. 2. INSPECT MIRROR DEFOGGER CIRCUIT Disconnect the connector from the outside mirror and inspect the connector on the wire harness side, as shown. If the circuit is not as specified, inspect the circuits connected to other parts. Tester connection to terminal number 1Ground 5Ground 5Ground Condition Specified condition Constant Ignition switch ON (Defogger switch OFF) Ignition switch ON (Defogger switch ON) Continuity No voltage Battery positive voltage BE116 BODY ELECTRICAL SYSTEM SLIDING ROOF SYSTEM SLIDING ROOF SYSTEM PARTS LOCATION BE12606 BE117 BODY ELECTRICAL SYSTEM SLIDING ROOF SYSTEM TROUBLESHOOTING BE0710F Trouble *1 Sliding roof system does not operate *2 Sliding roof system does not operate Sliding roof system operates abnormally Sliding roof system stops operation half way "Keyoff Sliding Roof" operation does not operate Parts name (See page) 1. ECUIG Fuse (BE9) 2. Ignition switch (BE14) 3. Theft Deterrent and Door Lock Control ECU (BE226) 4. Wire Harness 1. DOME Fuse (BE11) 2. POWER Fuse (BE9) 3. Theft Deterrent and Door Lock Control ECU (BE226) 4. Power Window Main Relay (BE102) 5. Sliding Roof Control Relay (BE119) 6. Sliding Roof Switch (BE118) 7. Sliding Roof Motor (BE118) 8. Wire Harness 1. Sliding Roof Control Relay (BE119) 2. Limit Switch (BE120) 3. Sliding Roof Switch (BE118) 4. Wire Harness 1. Sliding Roof Control Relay (BE119) 2. Limit Switch (BE120) 3. Sliding Roof Switch (BE118) 4. Sliding Roof Motor (BE118) (Stones to foreign material trapped in motor assembly) 1. DOME Fuse (BE11) 2. Theft Deterrent and Door Lock Control ECU (BE226) 3. ECUIG Fuse (BE9) 4. Ignition Switch (BE14) 5. Door Open Detection Switch (BE216) 6. Wire Harness The table below will be useful for you in troubleshooting these electrical problems. The most likely causes of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and replace the part when it is found to be faulty. *1: Door Lock does not operate *2: Door Lock is normal BE118 BODY ELECTRICAL SYSTEM SLIDING ROOF SYSTEM POWER MAIN RELAY INSPECTION BE06T0N INSPECT POWER MAIN RELAY CONTINUITY Condition Specified condition Constant Apply B+ between terminals 1 and 2. Continuity Continuity 35 Tester connection to terminal number 12 If continuity is not as specified, replace the relay. SLIDING ROOF SWITCH INSPECTION INSPECT SLIDING ROOF SWITCH CONTINUITY Switch position SLIDE OPEN SLIDE OFF SLIDE CLOSE TILT DOWN TILT OFF TILT UP Tester connection to terminal number 34 23 35 36 BE12706 Specified condition Continuity No continuity Continuity Continuity No continuity Continuity If continuity is not as specified, replace the switch. SLIDING ROOF MOTOR INSPECTION BE12804 INSPECT SLIDING ROOF MOTOR OPERATION (a) Connect the positive (+) lead from the battery to terminal 1 and the negative () lead to terminal 3, check that the motor turns to clockwise. (b) Reverse the polarity, check that the motor turns to counterclockwise. If operation is not as specified, replace the motor. Tester connection to terminal number 9Ground 9Ground 11Ground 6Ground 6Ground 12Ground 8Ground 8Ground 7Ground 7Ground 3Ground 4Ground 45 5Ground 3Ground 2Ground 2Ground 1Ground 1Ground Sliding roof control switch (SLIDE) OFF or CLOSE Sliding roof control switch (SLIDE) OPEN Sliding roof control switch (SLIDE) OFF or OPEN Sliding roof control switch (SLIDE) CLOSE Sliding roof control switch (TILT) OFF or DOWN Sliding roof control switch (TILT) UP Constant Constant Constant Sliding roof control switch (TILT) OFF or UP Sliding roof control switch (TILT) DOWN No. 1 limit switch OFF (Sliding roof tilted up or open approx. 200 mm (7.87 in.)) No. 1 limit switch ON (Except for conditions mentioned above) No. 2 limit switch OFF (Sliding roof closed) No. 2 limit switch ON (Sliding roof open) Constant Ignition switch LOCK or ACC Ignition switch ON Constant Condition BODY ELECTRICAL SYSTEM SLIDING ROOF CONTROL RELAY INSPECTION *: Exceptions: During 60 second period after ignition switch ON OFF (ACC) or until driver or passenger door is opened after ignition switch ON OFF (ACC). If circuit is as specified, replace the relay. SLIDING ROOF SYSTEM INSPECT SLIDING ROOF CONTROL RELAY CIRCUIT Disconnect the connector from the relay and inspect the connector on the wire harness side, as shown in the chart. No continuity Continuity Continuity * No voltage Battery positive voltage Battery positive voltage Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity No continuity No continuity No continuity No continuity No continuity Specified condition BE119 BE0780D BE120 BODY ELECTRICAL SYSTEM SLIDING ROOF SYSTEM LIMIT SWITCH INSPECTION BE07A08 1. INSPECT LIMIT SWITCH CONTINUITY Switch position Tester connection to terminal number Specified condition No continuity Continuity No.1 limit switch OFF (SW pin released) No.1 limit switch ON (SW pin pushed in) No.2 limit switch OFF (SW pin released) No.2 limit switch ON (SW pin pushed in) A4A5 No continuity Continuity A4A6 If continuity is not as specified, replace the switch. 2. INSPECT LIMIT SWITCH CIRCUIT (a) Check that there is continuity between terminals A2 and B1. (b) Check that there is continuity between terminals A1 and B3. If the circuit is not as specified, replace the switch. THEFT DETERRENT AND DOOR LOCK CONTROL ECU (See page dealing with THEFT DETERRENT SYSTEM.) DOOR OPEN DETECTION SWITCH (See page dealing with DOOR LOCK CONTROL SYSTEM.) BE121 BODY ELECTRICAL SYSTEM POWER MIRROR CONTROL SYSTEM POWER MIRROR CONTROL SYSTEM PARTS LOCATION BE12908 TROUBLESHOOTING BE07E0G The table below will be useful for you in troubleshooting these electrical problems. The most likely causes of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and replace the part when it is found to be faulty. Mirror does not operate Mirror operates abnormally (BE122) (BE122) Trouble Parts name 1. CIG Fuse 2. Mirror Switch 3. Mirror Motor 4. Wire Harness 1. Mirror Switch 2. Mirror Motor 3. Wire Harness (See page) (BE9) (BE122) (BE122) BE122 BODY ELECTRICAL SYSTEM POWER MIRROR CONTROL SYSTEM MIRROR SWITCH INSPECTION BE12A07 INSPECT MIRROR SWITCH CONTINUITY LEFT SIDE Switch position OFF UP DOWN LEFT RIGHT Specified condition No continuity Continuity Continuity Continuity Continuity Tester connection to terminal number 12 46 16 24 12 47 17 24 RIGHT SIDE Switch position OFF UP DOWN LEFT RIGHT Tester connection to terminal number 12 34 13 24 12 48 18 24 Specified condition No continuity Continuity Continuity Continuity Continuity If continuity is not as specified, replace the switch. MIRROR MOTOR INSPECTION BE07J0C INSPECT MIRROR MOTOR OPERATION (a) Connect the positive (+) lead from the battery to terminal 4 and negative () lead to terminal 3, check that the mirror turns upward. (b) Reverse the polarity, check that the mirror turns to downward. (c) Connect the positive (+) lead from the battery to terminal 2 and negative () lead to terminal 3, check that the mirror turns to left side. (d) Reverse the polarity, check that the mirror turns to right side. If operation is not as specified, replace the mirror. BE125 BODY ELECTRICAL SYSTEM AUDIO SYSTEM AUDIO SYSTEM SYSTEM DESCRIPTION BE2A001 1. RADIO WAVE BAND The radio wave bands used in radio broadcasting are as follows: LF: low Frequency MF: Medium Frequency HF: High Frequency VHF: Very High Frequency 2. 3. SERVICE AREA There are great differences in the size of the service area for AM, FM monaural, and FM stereo broadcasting. Thus it may happen that FM broadcasts cannot be received even though AM comes in very clearly. Not only does FM stereo have the smallest service area, but it also picks up static and other types of interference ("noise") easily. RECEPTION PROBLEMS Besides the problem of static, there are also the problems called "fading", "multipath" and "fade out". These problems are caused not by electrical noise but by the nature of the radio waves themselves. Fading Besides electrical interference, AM broadcasts are also susceptible to other types of interference, especially at night. This is because AM radio waves bounce off the ionosphere at night. These radio waves then interfere with the signals from the same transmitter that reach the vehicle's antenna directly. This type of interference is called "fading". BE126 BODY ELECTRICAL SYSTEM AUDIO SYSTEM Multipath One type of interference caused by the bouncing of radio waves off of obstructions is called "multipath". Multipath occurs when a signal from the broadcast transmitter antenna bounces off buildings and mountains and interferes with the signal that is received directly. 4. Fade Out Because FM radio waves are of higher frequencies than AM radio waves, they bounce off buildings, mountains, and other obstructions. For this reason, FM signals often seem to gradually disappear or fade away as the vehicle goes behind a building or other obstruction. This is called "fade out". COMPACT DISC PLAYER Compact Disc (hereafter called "CD") Players use a laser beam pickup to read the digital signals recorded on the CD and reproduce analog signals of the music, etc. There are 4.7 in. (12 cm) and 3.2 in. (8 cm) discs in the CD player. HINT: Never attempt to disassemble or oil any part of the player unit. Do not insert any object other than a disc into the magazine. NOTICE: CD players use an invisible laser beam which could cause hazardous radiation exposure. Be sure to operate the player correctly as instructed. BE0AN08 MAINTENANCE OF TAPE PLAYER Head Cleaning Using a moisttype cleaning tape, clean the head surface, pinch rollers and capstans. COMPACT DISC PLAYER Compact Disc (hereafter called "CD") players use a laser beam pickup to read the digital signals recorded on the CD and reproduce analog signals of the music, etc. There are 4.7 in. (12 cm) and 3.2 in. (8 cm) CD available, but is recommended that you do not use 3.2 in. (8 cm) discs in the CD player. HINT: Never attempt to disassemble or oil any part of the player unit. Do not insert any object other than a disc into the magazine. NOTICE: CD players use an invisible laser beam which could cause hazardous radiation exposure. Be sure to operate the player correctly as instructed. BE127 BODY ELECTRICAL SYSTEM AUDIO SYSTEM ANTITHEFT SYSTEM BE0AP0C 1. 2. 3. HINT: The words "ANTITHEFT SYSTEM" are displayed on the cassette tape slot cover. For operation instructions for the antitheft system, please consult the audio system section in the Owner's Manual (hereafter called O/M). SETTING SYSTEM The system is in operation once the customer has pushed the required buttons and entered the customerselected 3digit ID number. (Refer to the O/M section, "Setting the antitheft system") HINT: When the audio system is shipped the ID number has not been input, so the antitheft system is not in operation. If the ID number has not been input, the audio system remains the same as a normal audio system. ANTITHEFT SYSTEM OPERATION If the normal electrical power source (connector or battery terminal) is cut off, the audio system becomes inoperable, even if the power supply resumes. CANCELLING SYSTEM The ID number chosen by the customer is input to cancel the antitheft system. (Refer to the O/M section, "If the system is activated") HINT: To change or cancel the ID number, please refer to the O/M section "Cancelling the system". BE128 BODY ELECTRICAL SYSTEM AUDIO SYSTEM PARTS LOCATION BE12E06 BE129 BODY ELECTRICAL SYSTEM AUDIO SYSTEM RADIO RECEIVER ASSEMBLY BE2A201 INSPECT RADIO RECEIVER ASSEMBLY CIRCUIT Disconnect the connectors from the radio receiver assembly, and inspect the connector on the wire harness side, as shown. Tester connection to terminal number A7Ground A1Ground A5Ground A5Ground A2Ground A2Ground Condition Specified condition Constant Constant Ignition switch ACC or ON Ignition switch LOCK Light control switch TAIL or HEAD Light control switch OFF Continuity Battery positive voltage Battery positive voltage No voltage Battery positive voltage No voltage If circuit is not as specified, inspect the circuits connected to other parts. HINT: Check the wire harness between radio receiver assembly and the CD auto changer, between radio receiver assembly and power amplifier. BE130 BODY ELECTRICAL SYSTEM AUDIO SYSTEM POWER AMPLIFIER BE2A301 INSPECT POWER AMPLIFIER CIRCUIT Disconnect the connector from power amplifier and inspect the connector on the wire harness side, as shown. If circuit is not as specified, inspect the circuits connected to other parts. Condition Specified condition Constant Constant Constant Constant Ignition switch ACC or ON Ignition switch LOCK Continuity Continuity Battery positive voltage Battery positive voltage Battery positive voltage No voltage Tester connection to terminal number D7Ground D8Ground D1Ground D5Ground D2Ground D2Ground CD AUTO CHANGER BE2A401 INSPECT CD AUTO CHANGER CIRCUIT Disconnect connectors from CD auto changer and inspect the connector on the wire harness side, as shown. If circuit is not as specified, inspect the circuits connected to other parts. Tester connection to terminal number H4Ground H7Ground H7Ground Condition Specified condition Constant Luggage compartment door courtesy switch Push (OFF) Luggage compartment door courtesy switch Free (ON) Battery positive voltage No continuity Continuity BE131 BODY ELECTRICAL SYSTEM AUDIO SYSTEM ANTENNA ROD REMOVAL AND INSTALLATION BE12J04 1. REMOVE ANTENNA ROD HINT: Do this operation with the battery negative () cable connected to the battery terminal. (a) Turn the ignition switch to "LOCK" position. (b) Remove the antenna nut. (c) Press the "AM" and "CD" buttons on the radio receiver, and simultaneously turn the ignition switch to "ACC" position. HINT: The rod will extend fully and be released from the motor antenna. After removing the antenna rod, leave the ignition switch at "ACC". NOTICE: To prevent body damage when the antenna rod is released, hold the rod while it comes out. 2. INSTALL ANTENNA ROD (a) Insert the cable of the rod until it reaches the bottom. HINT: When inserting the cable, the teeth on the cable must face toward the rear of the vehicle. Insert the cable approx. 400 mm. (b) Wind the cable to retract the rod by turning the ignition switch to "LOCK" position. HINT: If the ignition switch is already in "LOCK" position, do step 1 (c) first, then turn the ignition switch to "ACC" position. In case the cable is not wound, twist it as shown in the illustration. Even if the rod has not retracted fully, install the antenna nut and inspect the antenna rod operation. It will finally retract fully. (c) Inspect the antenna rod operation by pushing the radio wave band select buttons. Tester connection to terminal number 7Ground 3Ground 8Ground 8Ground 6Ground 6Ground 1Ground 1Ground 4Ground 4Ground 5Ground 5Ground 2Ground 2Ground Constant Constant Ignition switch ACC or ON Ignition switch LOCK Ignition switch ON Ignition switch ACC or LOCK S Ignition switch ACC or ON S Radio or Tape or CD switch ON S Ignition switch ACC or ON S Radio or Tape or CD switch OFF S Ignition switch ACC or ON S Radio switch ON S Ignition switch ACC or ON S Radio switch OFF S Ignition switch ACC or ON S Radio switch ON (AM or FM (87.9 96.0 MHz)) S Ignition switch ACC or ON S Radio switch ON (Except AM or FM (87.996.0 MHz)) S Ignition switch ACC or ON S Radio switch ON (AM) S Ignition switch ACC or ON S Radio switch ON (Except AM) Condition BE132 BODY ELECTRICAL SYSTEM 1. MOTOR ANTENNA INSPECTION INSPECT MOTOR ANTENNA CIRCUIT Disconnect the motor antenna connector from the body wire harness and inspect the connector on body wire harness side, as shown. If circuit is not as specified, inspect radio or wire harness. If circuit is as specified, replace motor antenna. AUDIO SYSTEM No voltage No voltage No voltage No voltage Battery positive voltage Battery positive voltage Battery positive voltage Battery positive voltage Continuity Battery positive voltage Battery positive voltage No voltage Battery positive voltage No voltage Specified condition BE2A501 BE133 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 2. INSPECT ANTENNA MOTOR (a) Install antenna nut. (b) Disconnect the connector from the motor antenna control relay. (c) Connect the positive (+) lead from the battery to terminal 2 and the negative () lead to terminal 5 on the wire harness side connector. (d) Check that the motor turns (moves upward). NOTICE: These tests must be done quickly (within 48 seconds) to prevent the coil from burning out. (e) Then, reverse the polarity, check that the motor turns the opposite way (moves downward). NOTICE: These tests must be done quickly (within 48 seconds) to prevent the coil from burning out. HINT: When the motor is normal, lower the antenna to its lowest position. If operation is not as specified, replace the antenna motor assembly. GLASS PRINTED ANTENNA INSPECTION BE12L04 1. 2. INSPECT GLASS PRINTED ANTENNA (Use same procedure as for "INSPECT DEFOGGER WIRES".) REPAIR GLASS PRINTED ANTENNA (Use same procedure as for "REPAIR DEFOGGER WIRES".) Radio Problem No power coming in. Power coming in, but radio not operating. Noise present, but AMFM not operating. Either speaker does not work. Woofer speaker does not work. Either AM or FM does not work. Reception poor (Volume faint). Few preset tuning bands. Sound quality poor. Cannot set station select button. Preset memory disappears. Tape Player Cassette tape cannot be inserted. Cassette tape inserts, but no power. Power coming in, but tape player not operating. Either speaker does not work. Woofer speaker does not work. Sound quality poor (Volume faint). Tape jammed, malfunction with tape speed or autoreverse. APS, SKIP, RPT buttons not operating. Cassette tape will not eject. CD Player CD tape cannot be inserted. CD inserts, but no power. Power coming in, but CD player not operating. Sound jumps. Sound quality poor (Volume faint). Either speaker does not work Woofer speaker does not work CD will not eject. Amplifier No power coming in. Power coming in, but woofer amplifier (Power amplifier not operating. Either speaker does not work. Woofer speaker does not work. Noise Noise produced by vibration or shock while driving. Noise produce when engine starts. Antenna Antennarelated. ANTITHEFT SYSTEM Troubleshooting for ANTITHEFT SYSTEM. TROUBLESHOOTING BE134 NOTICE: When replacing the internal mechanism (computer part) of the audio system, be careful that no part of your body or clothing comes in contact with the terminals of the leads from the IC, etc. of the replacement part (spare part). HINT: This inspection procedure is a simple troubleshooting which should be carried out on the vehicle during system operation and was prepared on the assumption of system component troubles (except for the wires and connectors, etc.). Always inspect the trouble taking the following items into consideration. Open or short circuit of the wire harness Connector or terminal connection fault BODY ELECTRICAL SYSTEM AUDIO SYSTEM BE2A601 No. 1 2 3 4 5 6 6 7 7 8 8 9 * 10 11 12 13 14 15 16 * 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 BE135 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 1 Radio NO POWER COMING IN Yes Radio receiver assembly faulty. Is tape player operating normally? No Check if CIG Fuse is OK. Yes Is ACC applied to radio receiver assembly? Yes Check if RADIO No.1 and DOME fuses are OK? Yes Are B+ applied to radio receiver assembly? Yes Check if E (wire harness side) to radio is OK. Yes Radio receiver assembly faulty. No Replace fuse. No ACC wire harness faulty. No Replace fuse. No B+ wire harness faulty. No E faulty. 2 Radio POWER COMING IN, BUT RADIO NOT OPERATING If radio side faulty Is tape player operating normally? No Is there continuity in speaker wire harness? Yes Temporarily install another speaker. Functions OK? Yes No Radio receiver assembly faulty. Yes Go to No. 28. Radio receiver assembly faulty. No Speaker wire harness faulty. Yes Speaker faulty. 3 Radio NOISE PRESENT, BUT AMFM NOT OPERATING Radio receiver assembly faulty. If radio side faulty Go to No. 28. BE136 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 4 Radio EITHER SPEAKER DOES NOT WORK Yes Radio receiver assembly faulty. Is tape player operating normally? No Is hiss produced by nonfunctioning speaker? No Check if GND to power amplifier is OK? Yes Is B+ applied to power amplifier? Yes Is AMP applied to power amplifier? Yes Is there continuity in wire harness? (Radio receiver to power amplifier) Yes Is there continuity in speaker wire harness? Yes Temporarily install another speaker. Functions OK? No Radio receiver assembly faulty. Yes Radio receiver assembly faulty. No GND faulty. No B+ wire harness faulty. No Check the radio receiver assembly. No Wire harness faulty. No Speaker wire harness faulty. Yes Speaker faulty. BE137 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 5 Radio WOOFER SPEAKER DOES NOT WORK No Check if RADIO No. 1 fuse is OK? Yes Is tape player operating normally? No Check if GND to power amplifier is OK? Yes Are B+ applied to power amplifier? Yes Is AMP applied to power amplifier? Yes Is there continuity in wire harness? (Radio receiver to power amplifier) Yes Temporarily install another woofer speaker. Functions OK? No Is there continuity in speaker wire harness? Yes Temporarily install another power amplifier. Function OK? Yes Power amplifier faulty. Replace fuse. Yes Radio receiver assembly faulty. No GND faulty. No B+ wire harness faulty. No Check the radio receiver assembly. No Wire harness faulty. Yes Woofer speaker faulty. No Speaker wire harness faulty. No Radio receiver assembly faulty. BE138 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 6 Radio EITHER AM OR FM DOES NOT WORK, RECEPTION POOR (VOLUME FAINT), FEW PRESET TUNING BANDS Yes Poor signals, poor location. Problem with radio wave signals or location? (See SYSTEM DESCRIPTION) No Are both AM and FM defective? Yes Go to No.28. If radio side faulty Is tape player operating normally? No Temporarily install another speaker. Functions OK? No Radio receiver assembly faulty. No Radio receiver assembly faulty. Yes Radio receiver assembly faulty. Yes Speaker faulty. 7 Radio SOUND QUALITY POOR No Go to step 7A. If radio side faulty Yes Go to No.28. Radio receiver assembly faulty. Is sound quality always bad? Yes Is tape player operating normally? No Is speaker properly installed? Yes Temporarily install another speaker. Functions OK? No Install properly. Yes Speaker faulty. No Radio receiver assembly faulty. 7A. Is sound quality bad in certain areas only? No Radio receiver assembly faulty. Yes Poor signals, poor location. BE139 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 8 Radio CANNOT SET STATION SELECT BUTTON, PRESET MEMORY DISAPPEARS Yes Radio receiver assembly faulty. Can cassette tape be inserted in tape player? No Check if DOME and CIG fuses are OK. Yes Are ACC and B+ applied to radio receiver assembly? Yes Check if GND (wire harness side) to radio is OK. Yes Radio receiver assembly faulty. No Replace fuse. No ACC and B+ wire harness faulty. No GND faulty. 9 Tape Player CASSETTE TAPE CANNOT BE INSERTED Yes Remove foreign object. Is there a foreign object inside tape player? No Is auto search button of radio operating normally? No Check if DOME and CIG fuse is OK. Yes Are ACC and B+ applied to radio receiver assembly? No ACC and B+ wire harness faulty. Yes Radio receiver assembly faulty. No Replace fuse. Yes Check if GND (wire harness side) to radio receiver assembly is OK. No GND faulty. Yes Radio receiver assembly faulty. BE140 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 10 Tape Player CASSETTE TAPE INSERTS, BUT NO POWER Yes Radio receiver assembly faulty. Is radio operating normally? No Check if DOME, RADIO No. 1 and CIG fuses are OK. Yes Is ACC applied to radio receiver assembly? No ACC wire harness faulty. No Replace fuse. Yes Radio receiver assembly faulty. 11 Tape Player POWER COMING IN, BUT TAPE PLAYER NOT OPERATING Yes Cassette tape faulty. Functions OK if different cassette tape inserted? No No Is radio operating normally? No Is there continuity in speaker wire harness? Yes Temporarily install another speaker. Functions OK? No Radio receiver assembly faulty. Yes Radio receiver assembly faulty. No Speaker wire harness faulty. Yes Speaker faulty. BE141 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 12 Tape Player EITHER SPEAKER DOES NOT WORK No Check if DOME fuse is OK. Yes Is radio operating normally? No Check if GND to power amplifier is OK. Yes Is B+ applied to power amplifier? Yes Is AMP applied to power amplifier? Yes Is there continuity in wire harness? (Radio receiver to power amplifier) Yes Temporarily install another woofer speaker. Functions OK? No Is there continuity in speaker wire harness? Yes Temporarily install another power amplifier. Functions OK? Yes Power amplifier faulty. Replace fuse. Yes Radio receiver assembly faulty. No GND faulty. No B+ wire harness faulty. No Check the radio receiver assembly. No Wire harness faulty. Yes Woofer speaker faulty. No Speaker wire harness faulty. No Radio receiver assembly faulty. BE142 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 13 Tape Player WOOFER SPEAKER DOES NOT WORK No Check if DOME fuse is OK. Yes Is radio operating normally? No Check if GND to power amplifier is OK. Yes Is B+ applied to power amplifier? Yes Is AMP applied to power amplifier? Yes Is there continuity in wire harness? (Radio receiver to power amplifier) Yes Temporarily install another woofer speaker. Functions OK? No Is there continuity in speaker wire harness? Yes Temporarily install another power amplifier. Functions OK? Yes Power amplifier faulty. Replace fuse. Yes Radio receiver assembly faulty. No GND faulty. No B+ wire harness faulty. No Check the radio receiver assembly. No Wire harness faulty. Yes Woofer speaker faulty. No Speaker wire harness faulty. No Radio receiver assembly faulty. BE143 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 14 Tape Player SOUND QUALITY POOR (VOLUME FAINT) Yes Cassette tape faulty. Functions OK if different cassette tape inserted? No No Operates normally after cleaning the heads? (See MAINTENANCE OF TAPE PLAYER) No Is radio operating normally? No Is speaker properly installed? Yes Temporarily install another speaker. Functions OK? No Radio receiver assembly faulty. Yes Head dirty. Yes Radio receiver assembly faulty. No Install properly. Yes Speaker faulty. 15 Tape Player TAPE JAMMED, MALFUNCTION WITH TAPE SPEED OR AUTOREVERSE Yes Cassette tape faulty. Functions OK if different tape (less than 120 mins.) is inserted? No No Is there foreign object inside tape player? No Operates normally after cleaning the heads? (See MAINTENANCE OF TAPE PLAYER) No Radio receiver assembly faulty. Yes Remove foreign object. Yes Head dirty. 16 Tape Player APS, SKIP, RPT BUTTONS NOT OPERATING No Radio receiver assembly faulty. Functions OK if different cassette tape inserted? Yes Cassette tape faulty. (Less than 3 secs. of silence between songs (APS, RPT). Less than 15 secs. of silence (SKIP).) BE144 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 17 Tape Player CASSETTE TAPE WILL NOT EJECT No Cassette tape jammed. Radio receiver assembly faulty. Is tape player operating normally? Yes Is auto search button of radio operating normally? No Check if DOME fuse is OK? Yes Is B+ applied to radio receiver assembly? No B+ wire harness faulty. Yes No Replace fuse. Yes Radio receiver assembly faulty. 18 CD Player CD CANNOT BE INSERTED Yes Eject CD. Is CD already inserted? No Is 3.2 in. (8 cm) disc being used? No Is auto search button of radio operating normally? No Check if DOME fuse is OK? Yes Is B+ applied to radio receiver assembly? No B+ wire harness faulty. Yes Use 4.7 in. (12 cm) disc. Yes Go to step 18A. No Replace fuse. Yes Check if E (wire harness side) to radio receiver assembly is OK? No GND wire harness faulty. Yes Go to step 18A. BE145 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 18A. Is B+ applied to CD auto changer? Yes Is ACC applied to CD auto changer? Yes Check if GND (wire harness side) to CD auto changer is OK. Yes Is there continuity in CD auto changer wire harness? (to radio receiver assembly) Yes Temporarily install another CD auto changer. Functions OK? Yes CD auto changer faulty. No Radio receiver assembly faulty. No Wire harness faulty. (to radio receiver assembly) No GND wire harness faulty. No ACC wire harness faulty. No B+ wire harness faulty. 19 CD Player CD INSERTS, BUT NO POWER Yes Go to step 19A. Is radio operating normally? No Check if DOME fuse is OK? Yes Is ACC applied to radio receiver assembly? No ACC wire harness faulty. No Replace fuse. Yes Go to step 19A. BE146 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 19A. Is B+ applied to CD auto changer? Yes Is ACC applied to CD auto changer? Yes Check if GND (wire harness side) to CD auto changer is OK. Yes Is there continuity in CD auto changer wire harness? (to radio receiver assembly) Yes Temporarily install another CD auto changer. Functions OK? Yes CD auto changer faulty. No Radio receiver assembly faulty. No Wire harness faulty. (to radio receiver assembly) No GND wire harness faulty. No ACC wire harness faulty. No +B wire harness faulty. 20 CD Player POWER COMING IN, BUT CD PLAYER NOT OPERATING No Insert correctly. Is CD inserted correct side up? Yes Is 3.2 in. (8 cm) disc being used? No Functions OK if different CD inserted? No Is radio operating normally? Yes Is temperature inside luggage compartment hot? No Does sudden temperature change occur inside luggage compartment? No Go to step 20A. Yes Use 4.7 in. (12 cm) disc. Yes CD faulty. No Go to step 20B. Yes Protective circuit in operation. Yes Formation of condensation due to temp. change. BE147 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 20A. Is B+ applied to CD auto changer? Yes Is ACC applied to CD auto changer? Yes Check if GND (wire harness side) to CD auto changer is OK? Yes Is there continuity in CD auto changer wire harness? (to radio receiver assembly) Yes Temporarily install another CD auto changer. Functions OK? No CD auto changer faulty. Yes Radio receiver assembly faulty. No Wire harness faulty. (to radio receiver assembly) No GND wire harness faulty. No ACC wire harness faulty. No B+ wire harness faulty. 20B. Is there continuity in speaker wire harness? Yes Temporarily install another speaker. Functions OK? Yes Go to step 20A. Yes Speaker faulty. No Speaker wire harness faulty. BE148 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 21 CD Player SOUND JUMPS Yes Does sound jump only during strong vibration? No Is CD auto changer properly installed? Yes Functions OK if different CD inserted? No Has sudden temperature change occurred in luggage compartment? No Is B+ applied to CD auto changer? Yes Is ACC applied to CD auto changer? Yes Check if GND (wire harness side) to CD auto changer is OK? Yes Is there continuity in CD auto changer wire harness? (to radio receiver assembly) Yes Temporarily install another CD auto changer. Functions OK? Yes CD auto changer faulty. Jumping caused by vibration. No Install properly. Yes CD faulty. Yes Formation of condensation due to temp. change. No B+ wire harness faulty. No ACC wire harness faulty. No GND wire harness faulty. No Wire harness faulty. (to radio receiver assembly) Radio receiver assembly faulty. No BE149 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 22 CD Player SOUND QUALITY POOR (VOLUME FAINT) Yes CD faulty. Functions OK if different CD inserted? No Is radio operating normally? No Is speaker properly installed? Yes Temporarily install another speaker. Functions OK? No Yes No Install properly. Yes Speaker faulty. Is B+ applied to CD auto changer? Yes Is ACC applied to CD auto changer? Yes Check if GND (wire harness side) to CD auto changer is OK? Yes Is there continuity in CD auto changer wire harness? (to radio receiver assembly) Yes Temporarily install another CD auto changer. Functions OK? Yes CD auto changer faulty. No +B wire harness faulty. No ACC wire harness faulty. No GND wire harness faulty. No Wire harness faulty. (to radio receiver assembly) No Radio receiver assembly faulty. BE150 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 23 CD Player EITHER SPEAKER DOES NOT WORK Yes Is radio operating normally? No Is power amplifier operating normally? No Is hiss produced by nonfunctioning speaker? No Is there continuity in speaker wire harness? Yes Temporarily install another speaker. Functions OK? No Go to step 23A. Go to step 23A. Yes Go to step 23A. Yes Go to step 23A. No Speaker wire harness faulty. Yes Speaker faulty. 23A. Is B+ applied to CD auto changer? Yes Is ACC applied to CD auto changer? Yes Check if GND (wire harness side) to CD auto changer is OK? Yes Is there continuity in CD auto changer wire harness? (to radio receiver assembly) Yes Temporarily install another CD auto changer. Functions OK? Yes CD auto changer faulty. No Radio receiver assembly faulty. No Wire harness faulty. (to radio receiver assembly) No GND wire harness faulty. No ACC wire harness faulty. No B+ wire harness faulty. BE151 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 24 CD Player WOOFER SPEAKER DOES NOT WORK No Check if DOME fuse is OK? Yes Is radio operating normally? No Check if GND to power amplifier is OK? Yes Are B+ applied to power amplifier? Yes Is AMP applied to power amplifier? Yes Is there continuity in wire harness? (Radio receiver to power amplifier) Yes Temporarily install another woofer speaker. Functions OK? No Is there continuity in speaker wire harness? Yes Temporarily install another power amplifier. Functions OK? Yes Power amplifier faulty. Replace fuse. Yes Radio receiver assembly faulty. No GND faulty. No B+ wire harness faulty. No Check the radio receiver assembly. No Wire harness faulty. Yes Woofer speaker faulty. No Speaker wire harness faulty. No Radio receiver assembly faulty. BE152 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 25 CD Player CD WILL NOT EJECT Yes Go to step 25A. Is auto search button of radio operating normally? No Check if DOME fuse is OK? OK Are B+ applied to radio receiver assembly? No B+ wire harness faulty. NG Replace fuse. Yes Go to step 25A. 25A. Is B+ applied to CD auto changer? Yes Is ACC applied to CD auto changer? Yes Check if GND (wire harness side) to CD auto changer is OK? Yes Is there continuity in CD auto changer wire harness? (to radio receiver assembly) Yes Temporarily install another CD auto changer. Functions OK? Yes CD auto changer faulty. No Radio receiver assembly faulty. No Wire harness faulty. (to radio receiver assembly) No GND wire harness faulty. No ACC wire harness faulty. No B+ wire harness faulty. BE153 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 26 Amplifier NO POWER COMING IN No No Power amplifier faulty. Is +B applied to power amplifier? Yes Is ACC applied to power amplifier? Yes Is there continuity in wire harness? (Radio receiver to power amplifier) Yes Check if GND to body is OK. Yes Radio receiver assembly faulty. Power amplifier. No Wire harness faulty. No GND faulty. 27 Amplifier POWER COMING IN, BUT POWER AMPLIFIER NOT OPERATING No No Power amplifier faulty. Is power amplifier operating normally? Yes Is there continuity in speaker wire harness? Yes Temporarily install another speaker. Functions OK? No Power amplifier faulty. Speaker wire harness faulty. Speaker faulty. Yes 28 Amplifier EITHER SPEAKER DOES NOT WORK Yes Radio receiver assembly faulty. Is power amplifier operating normally? No Is hiss produced by nonfunctioning speaker? No Is there continuity in speaker wire harness? Yes Temporarily install another speaker. Functions OK? No Power amplifier faulty. Yes Radio receiver assembly faulty. No Speaker wire harness faulty. Yes Speaker faulty. BE154 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 29 Amplifier WOOFER SPEAKER DOES NOT WORK Yes Radio receiver assembly faulty. Is power amplifier operating normally? No Is hiss produced by nonfunctioning speaker? No Is there continuity in speaker wire harness? Yes Temporarily install another speaker. Functions OK? No Woofer amplifier faulty. Yes No Radio receiver assembly faulty. Speaker wire harness faulty. Yes Speaker faulty. 30 Noise NOISE PRODUCED BY VIBRATION OR SHOCK WHILE DRIVING No No Install properly. Is speaker properly installed? Yes Is each system correctly installed? Yes With vehicle stopped, lightly tap each system. Is noise produced? No Install properly. Each system faulty. Yes Noise produced by static electricity accumulating in the vehicle body. BE155 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 31 Noise NOISE PRODUCED WHEN ENGINE STARTS Yes Generator noise. Whistling noise which becomes highpitched when accelerator strongly depressed, disappears shortly after engine stops. No Whining noise occurs when A/C is operating. No Scratching noise occurs during sudden acceleration, driving on rough roads or when ignition switch is turned on. No Clicking sound heard when horn button is pressed, then released. Whirring/grating sound when pushed continuously. No Murmuring sound, stops when engine stops. No Ticktock noise, occurs in coordination with blinking of flasher. No Noise occurs during window washer operation. No Scratching noise occurs while engine is running, continues a while even after engine stops. No Scraping noise in time with wiper beat. No Other type of noise. Yes A/C noise. Yes Fuel gauge noise. Yes Horn noise. Yes Ignition noise. Yes Turn signal noise. Yes Washer noise. Yes Engine coolant temp. gauge noise. Yes Wiper noise. BE156 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 32 Antenna ANTENNARELATED Yes Go to step 32A. Does antenna extend when radio switched ON? No Check if ECUIG, RADIO No.1 and DOME fuses are OK? Yes Is ACC applied to motor antenna control relay? Yes Is B+ applied to motor antenna control relay? Yes Is IG applied to motor antenna control relay? Yes Check if GND (wire harness side) to motor antenna control relay is OK? Yes Are AMP, ANT, ANT A and B applied to motor antenna control relay? Yes Inspect motor. Yes Temporarily install another motor antenna control relay. Functions OK? *1 Hole IC faulty. 32A. Inspect glass printed antenna. OK Temporarily install another antenna. Functions OK? No Radio receiver side faulty. No No Replace fuses. No ACC wire harness faulty. No B+ wire harness faulty. No IG wire harness faulty. No GND faulty. No Check continuity between motor antenna and radio receiver assembly. Motor faulty. Yes No No *1 Wire harness faulty. Yes *2 Motor antenna control relay faulty. Radio receiver assembly faulty. *1: *2: NG Replace motor antenna assembly. Replace motor antenna control relay. Glass printed antenna faulty. Yes Motor antenna faulty. BE157 BODY ELECTRICAL SYSTEM AUDIO SYSTEM 33 AntiTheft system TROUBLESHOOTING FOR ANTITHEFT SYSTEM Turn Ignition key from Lock position to ACC position. Display A: ID Number is set. [SEC] display disappears after 1 second. No Yes Take to designated radio service station. Radio switch ON. NG OK Normal operation. Refer to each malfunction item. Normal operation. Display E: ANTITHEFT SYSTEM operation condition. (ID number input error 10 times or more.) Display B Radio switch ON. Display B Display D Cancel ID number, refer to each malfunction item. ANTITHEFT SYSTEM operation condition. (ID number input error 9 times or less.) Input ID number to cancel ANTITHEFT SYSTEM, and check display. Display A B Radio switch ON. Display D ANTITHEFT SYSTEM cancelled. Check audio system again. NG Cancel ID number, refer to each malfunction item. Normal operation. Display B Refer to each malfunction item. Display E Take to designated radio service station. Display C A ANTITHEFT SYSTEM not cancelled. (ID number input error 9 times or less.) OK HINT: a) Refer to O/M for operation details of ANTITHEFT SYSTEM. b) When the ID number has been cancelled, reset the same number after completing the operation, or inform the customer that it has been cancelled. BE158 BODY ELECTRICAL SYSTEM CLOCK CLOCK BE12N07 TROUBLESHOOTING HINT: Troubleshoot the clock according to the table below. 1 CLOCK WILL NOT OPERATE (a) Check that the battery positive voltage is 10 16 V. If voltage is not as specified, replace the battery. (b) Check that the DOME fuse is not blown. If the fuse is blown, replace the fuse and check for short. (c) Troubleshoot the clock as follows. HINT: Inspect the connector on the wire harness side. Is there battery positive voltage between terminal +B and body ground? Yes Is there continuity between terminal GND and body ground? Yes Replace clock assembly. Clock will not operate Clock loses or gains time 1 2 No Open or short circuit in wire harness between terminal +B and DOME fuse. No Open circuit in wire harness between terminal GND and body ground. BE159 BODY ELECTRICAL SYSTEM CLOCK 2 CLOCK LOSES OR GAINS TIME (a) Check that the battery positive voltage is 10 16 V. If voltage is not as specified, replace the battery. (b) Inspect the error of the clock. Allowable error (per day): "2.0 seconds If the error exceeds the allowable error, replace the clock assembly. (c) Check if the clock adjusting button is sticking in position and has failed to return. If the button has not returned, repair or replace the clock assembly. (d) Troubleshoot the clock as follows. HINT: Inspect the connector on the wire harness side. Is there 10 16 V between terminal +B and body ground? Yes Adjust or replace clock assembly. Below 10 V Locate cause, and repair or recharge battery. BE160 BODY ELECTRICAL SYSTEM POWER SEAT CONTROL SYSTEM POWER SEAT CONTROL SYSTEM PARTS LOCATION BE12P04 "Lumbar support operation" does not operate "Reclining operation" does not operate "Rear vertical operation" does not operate "Front vertical operation" does not operate "Slide operation" does not operate Passenger's seat does not operate Driver's seat does not operate Power seat does not operate Trouble TROUBLESHOOTING (D): Driver's Seat (P): Passenger's Seat The table below will be useful for you in troubleshooting these electrical problems. The most likely causes of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and replace the part when it is found to be faulty. BODY ELECTRICAL SYSTEM Parts name 1. POWER Fuse 2. Wire Harness 3. Power Seat Switch (D) 4. Power Seat Switch (P) 1. Power Seat Switch (D) 2. Wire Harness 1. Power Seat Switch (P) 2. Wire Harness 1. Power Seat Switch (D) 2. Power Seat Switch (P) 3. Wire Harness 4. Slide Motor (D,P) 1. Power Seat Switch (D) 2. Power Seat Switch (P) 3. Wire Harness 4. Front Vertical Motor (D,P) 1. Power Seat Switch (D) 2. Power Seat Switch (P) 3. Wire Harness 4. Rear Vertical Motor (D,P) 1. Power Seat Switch (D) 2. Power Seat Switch (P) 3. Wire Harness 4. Reclining Motor (D,P) 1. Lumber Support Switch (D,P) 2. Wire Harness 3. Lumber Support Motor (D,P) POWER SEAT CONTROL SYSTEM (BE169) (BE164, 165) (BE168) (BE162) (BE162) (BE167) (BE162) (BE162) (BE166) (BE162) (BE162) (BE162) (BE162) (BE162) (BE162) (BE162) (BE162) (See page) (BE9) (BE170) BE161 BE07W09 Switch position Switch position Switch position BE162 BODY ELECTRICAL SYSTEM 1. POWER SEAT SWITCH INSPECTION INSPECT POWER SEAT SWITCH CONTINUITY SLIDE SWITCH REAR VERTICAL SWITCH FRONT VERTICAL SWITCH FRONT DOWN DOWN BACK OFF OFF OFF UP UP POWER SEAT CONTROL SYSTEM Tester connection to terminal number 711 1314 1114 1314 713 1114 Tester connection to terminal number 67 810 610 810 610 78 Tester connection to terminal number 57 912 512 912 512 79 Specified condition Specified condition Specified condition Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity BE12Q04 BE163 BODY ELECTRICAL SYSTEM POWER SEAT CONTROL SYSTEM RECLINING SWITCH Tester connection to terminal number 12Ground 7Ground Constant Constant Switch position FORWARD RECLINING OFF REAR RECLINING Tester connection to terminal number 710 1214 1012 1214 714 1012 Specified condition Continuity Continuity Continuity If continuity is as specified, replace the switch. 2. INSPECT POWER SEAT SWITCH CIRCUIT (a) Disconnect the switch connector and connect the seat wire harness to the floor wire harness. (b) Inspect the connector on the wire harness side, as shown. If circuit is not as specified, inspect the circuits connected to other parts. Condition Specified condition Continuity Battery positive voltage BE164 BODY ELECTRICAL SYSTEM POWER SEAT CONTROL SYSTEM LUMBAR SUPPORT SWITCH INSPECTION BE12R04 (DRIVER'S SEAT) 1. INSPECT LUMBAR SUPPORT SWITCH CONTINUITY Switch position FORWARD OFF Tester connection to terminal number 14 23 13 23 13 24 Specified condition Continuity Continuity Continuity Tester connection to terminal number 3Ground 4Ground Constant Constant RELEASE If continuity is not as specified, replace the switch. 2. INSPECT LUMBER SUPPORT SWITCH CIRCUIT (a) Disconnect the switch connector and connect the seat wire harness to the floor wire harness. (b) Inspect the connector on the wire harness side, as shown. Condition Specified condition Continuity Battery positive voltage If circuit is not as specified, inspect the circuits connected to other parts. BE165 BODY ELECTRICAL SYSTEM POWER SEAT CONTROL SYSTEM (PASSENGER'S SEAT) BE12S04 1. INSPECT LUMBAR SUPPORT SWITCH CONTINUITY Switch position FORWARD OFF Tester connection to terminal number 14 23 24 23 13 24 Specified condition Continuity Continuity Continuity Tester connection to terminal number 2Ground 1Ground Constant Constant RELEASE If continuity is not as specified, replace the switch. 2. INSPECT LUMBER SUPPORT SWITCH CIRCUIT (a) Disconnect the switch connector and connect the seat wire harness to the floor wire harness. (b) Inspect the connector on the wire harness side, as shown. Condition Specified condition Continuity Battery positive voltage If circuit is not as specified, inspect the circuits connected to other parts. BE166 BODY ELECTRICAL SYSTEM POWER SEAT CONTROL SYSTEM SLIDE MOTOR INSPECTION BE12T05 1. INSPECT SLIDE MOTOR OPERATION (a) Connect the positive (+) lead from the battery to terminal 2 and the negative () lead to terminal 1, check that the motor turns counterclockwise. (b) Reverse the polarity, check that the motor turns clockwise. If operation is not as specified, replace the motor. 2. INSPECT PTC Thermistor Operation (Driver's seat) (a) Separate power seat adjuster from front seat. (b) Connect the positive (+) lead from the battery to terminal 2, the positive (+) lead from the ammeter to terminal 1, and the negative () lead to battery negative () terminal, and move the seat front end position. (c) Continue to apply voltage, check the current changes to less than 1 ampere within 4 to 90 seconds. (d) Disconnect the lead from terminals. (e) Approximately 60 seconds later, connect the positive (+) lead from battery to terminal 1 and the negative () lead to terminal 2, check that the seat begins to move backwards. If operation is not as specified, replace the motor. BE167 BODY ELECTRICAL SYSTEM POWER SEAT CONTROL SYSTEM FRONT VERTICAL MOTOR INSPECTION BE12U05 INSPECT FRONT VERTICAL MOTOR OPERATION (a) Connect the positive (+) lead from the battery to terminal 2 and the negative () lead to terminal 1, check that the motor turns clockwise. (b) Reverse the polarity, check that the motor turns counterclockwise. If operation is not as specified, replace the motor. PTC Thermistor Operation / Driver's Seat (a) Separate power seat adjuster from front seat. (b) Connect the positive (+) lead from the battery to terminal 1, the positive (+) lead from the ammeter to terminal 2 and the negative () lead to battery negative () terminal, and move the front edge of seat cushion to the highest position. (c) Continue to apply voltage, check the current changes to less than 1 ampere within 4 to 90 seconds. (d) Disconnect the leads from terminals. (e) Approximatery 60 seconds later, connect the positive (+) lead from battery to terminal 2 and the negative () lead to terminal 1, check that the seat cushion begins to descend. If operation is not as specified, replace the motor. BE168 BODY ELECTRICAL SYSTEM POWER SEAT CONTROL SYSTEM REAR VERTICAL MOTOR INSPECTION BE12V04 INSPECT REAR VERTICAL MOTOR OPERATION (a) Connect the positive (+) lead from the battery to terminal 2 and the negative () lead to terminal 1, check that the motor turns clockwise. (b) Reverse the polarity, check that the motor turns counterclockwise. If operation is not as specified, replace the motor. PTC Thermistor Operation / Driver's seat (a) Separate power seat adjuster from front seat. (b) Connect the positive (+) lead from the battery to terminal 2, the positive (+) lead from the ammeter to terminal 1 and the negative () lead to battery negative () terminal, and move the rear edge of seat cushion to the highest position. (c) Continue to apply voltage, check the current changes to less than 1 ampere within 4 to 90 seconds. (d) Disconnect the leads from terminals. (e) Approximatery 60 seconds later, connect the positive (+) lead from battery to terminal 1 and the negative () lead to terminal 2, check that the seat cushion begins to descend. If operation is not as specified, replace the motor. BE169 BODY ELECTRICAL SYSTEM POWER SEAT CONTROL SYSTEM RECLINING MOTOR INSPECTION BE12W04 (DRIVER'S SIDE) 1. INSPECT RECLINING MOTOR OPERATION Driver's Seat (a) Connect the positive (+) lead from the battery to terminal 2 and negative () lead to terminal 1 and check that the motor turns counterclockwise. (b) Reverse the polarity, check that the motor turns clockwise. If operation is not as specified, replace the motor. 2. INSPECT PTC THERMISTOR OPERATION (Driver's Seat) (a) Remove seat back board. (b) Remove the clips and hook. (c) Disconnect the connector from the reclining motor. HINT: Disassemble the seat until voltage is applied to the motor. (d) Connect the positive (+) lead from the battery to terminal 1, the positive (+) lead from the ammeter to terminal 2 and the negative () lead to battery negative () terminal, and recline the seat back to the most forward position. (e) Continue to apply voltage, check the current changes to less than 1 ampere within 4 to 90 seconds. (f) Disconnect the lead from terminals. (g) Approximatery 60 seconds later, connect the positive (+) lead from battery to terminal 2 and the negative () lead to terminal 1, check that the seat back starts to fall backwards. If operation is not as specified, replace the motor. BE170 BODY ELECTRICAL SYSTEM POWER SEAT CONTROL SYSTEM LUMBAR SUPPORT MOTOR INSPECTION BE12X05 1. INSPECT LUMBAR SUPPORT MOTOR OPERATION (a) Connect the positive (+) lead from the battery to terminal 1 and the negative () lead to terminal 2, check that the lumbar support moves release side. (b) Reverse the polarity, check that the lumbar support moves forward. If operation is not as specified, replace the motor. 2. INSPECT LUMBER SUPPORT MOTOR CIRCUIT BREAKER OPERATION (a) Remove seat back board. (b) Remove the clips and hook. (c) Disconnect the connector from lumbar support motor. HINT: Disassemble the seat until voltage is applied to the motor. (d) Connect the positive (+) lead from the battery to terminal and the negative () lead to terminal on the lumbar support motor connector and move the lumbar support to front end position. Seat Driver's Battery positive lead Terminal 2 Battery negative lead Terminal 1 (e) Continue to apply voltage, check that there is a circuit breaker operation noise within 4 to 60 seconds. (f) Reverse the polarity check that the lumbar support begins to move release side within approximately 60 seconds. If operation is not as specified, replace the motor. BE171 BODY ELECTRICAL SYSTEM CELLULAR PHONE CELLULAR PHONE PARTS LOCATION BE12Y03 BE172 BODY ELECTRICAL SYSTEM CELLULAR PHONE BE173 BODY ELECTRICAL SYSTEM CELLULAR PHONE SYSTEM CIRCUIT BE12Z03 BE174 BODY ELECTRICAL SYSTEM CELLULAR PHONE BE175 BODY ELECTRICAL SYSTEM CELLULAR PHONE BE176 BODY ELECTRICAL SYSTEM CELLULAR PHONE BE177 BODY ELECTRICAL SYSTEM CELLULAR PHONE COMPONENTS BE13004 BE178 BODY ELECTRICAL SYSTEM CELLULAR PHONE COMPONENTS BE13103 BE179 BODY ELECTRICAL SYSTEM CELLULAR PHONE BE180 BODY ELECTRICAL SYSTEM CELLULAR PHONE TROUBLESHOOTING BE13203 Chart No. 1 2 3 4 5 6 7 8 9 10 Trouble Radio does not power up. *"NO SVC" light stays on. *Static during calls / Dropped calls. Fast busy signal or recording received when placing calls. Dialing problems with controller. No hands free transmit audio. No hands free audio or tones from left rear speaker. No AM/FM radio out of left rear speaker. AM/FM radio does not mute during calls. Radio will not go into programming mode. Mobile phone type You can easily find the cause of trouble using the table shown below. *: These tests assume adequate cellular coverage at location of testing. 1 1) RADIO DOES NOT POWER UP Verify phone is installed properly. 2) Check the fuse on the power cable to cellular mobile telephone. 3) Substitute a known good handset and try to turn the telephone on. 4) Does the telephone turn on? No Yes 10) Replace handset. 11) Performfunctional tests. END CONTINUED ON NEXT PAGE BE181 BODY ELECTRICAL SYSTEM CELLULAR PHONE CONTINUED FROM PREVIOUS PAGE 5) Substitute or check the handset power extension cable (Subwire with attached substrate) and use original handset. Try to turn the telephone on. 6) Does the telephone turn on? Yes 12) Replace the handset power extension cable. 13) Performfunctional tests. No 7) Replace the original extension cable. END 8) Gain access to the transceiver and unplug the power cable to the telephone. 9) With a voltmeter, measure the voltage with respect to ground (terminal 3) on pins 4 and 6. 14) Is battery A+ present? No 15) Cable in the car is defective. END Yes 16) Replace the mobile transceiver. 17) Try to turn the phone on again. 18) Does the phone turn on? Yes 19) Perform functional test. Call MCSI to activate ESN and receive phone #. No 20) Substitute known good handset and try to turn on the phone. 21) Does the phone turn on? No 22) Cable in the car is defective. END Yes 23) Perform functional tests. Call MCSI to activate ESN and receive phone #. Program phone. END BE182 BODY ELECTRICAL SYSTEM CELLULAR PHONE 2 1) "NO SVC" LIGHT* STAYS ON Verify complaint by checking to see that the "NO SVC" light is on when unit is powered up. 2) Visually inspect antenna whip, cable and coupling box for damage. Replace if damaged. 3) Check to see if selectable system scan programming is nonstandard (RCL*). 4) Programming STD AB or STD BA? Yes No 11) Set to standard unless at customer preference. Repeatedly press* until at correct setting. Then press store within six seconds. 12) Repeat 1). 5) Connect a magnetic mount antenna to the transceiver and power up the phone. Yes 13) NO SVC light on? No END 6) NO SVC light on? Yes 14) Substitute a known good transceiver. No 7) Ohm out the antenna cable for a short or open circuit. 15) Repeat 1). Yes 16) NO SVC light on? No END 17) (a) (b) (c) Perform functional tests. Call MCSI to activate ESN and receive phone number. Program phone. 18) Call system provider to see if cell is down. Ensure that you can receive service at vehicle location. CONTINUED ON NEXT PAGE *: These tests assume adequate cellular coverage at location of testing. BE183 BODY ELECTRICAL SYSTEM CELLULAR PHONE CONTINUED FROM PREVIOUS PAGE 8) Is cable good? No Yes 9) Replace full antenna assembly. 19) Replace antenna cable. 20) Repeat 1). 10) Perform functional tests. 21) NO SVC light on? Yes No END 22) Replace full antenna assembly. 23) Perform function tests. END *: These tests assume adequate cellular coverage at location of testing. BE184 BODY ELECTRICAL SYSTEM CELLULAR PHONE 3 1) *STATIC DURING CALLS/DROPPED CALLS Most problems of this nature are due to poor system coverage. Discuss with customer if problems are occurring in same geographical area. 2) Visually check antenna, coupling box and antenna connector. (a) (b) Make sure the coupling box and base are in line with each other and that the base is not over a defogger wire. Make sure the antenna cable is connected securely. 3) Access the transceiver and connect the test connector in series with the power cable. Then turn on the phone. 4) Let the "NO SVC" light go out, and read and record the RSSI. 5) Repeat the procedure with use of magnetic mount antenna and compare the RSSI reading to that recorded previously. 6) Do the RSSI readings differ by more than 15? Yes No No trouble found. 7) Ohm out the antenna cable for a short or open circuit. 8) Is the cable good? No Yes 12) Replace antenna. 13) Perform functional test. 9) Replace cable. END 10) Repeat 3), 4) and 5). Yes 11) Do the RSSI readings differ by more than 15? *: No These tests assume adequate cellular coverage at location of testing. BE185 BODY ELECTRICAL SYSTEM CELLULAR PHONE 4 1) FAST BUSY SIGNAL OR RECORDING RECEIVED WHEN PLACING CALLS Verify complaint by placing a phone call. 2) Call MCSI or system provider to ensure Electronic Serial Number is activated. 3) Number activated? No 8) Ask MCSI for reason ESN is not activated. a) b) c) System provider hasn't activated number yet? Customer on denied service file? Customer has unpaid charges? Yes 4) Verify that activated ESN is correct by using 38 # in test mode (use inline test connector). 9) Condition (a) Have MCSI activate number. Condition (b) Have MCSI activate number. Condiiton (c) Refer customer to MCSI. 5) Is ESN correct? Yes No 10) Call MCSI to activate correct ESN. 6) Substitute known good transceiver. 7) (a) (b) (c) Perform functional test. Call MCSI to activate ESN. Program radio. END BE186 BODY ELECTRICAL SYSTEM CELLULAR PHONE 5 1) DIALING PROBLEMS WITH COMMAND MODULE Verify problem by testing the four command module buttons. 2) Visually examine the command module and buttons for damage. 3) Substitute a known good command module. 4) Test the four command module buttons for dialing 1, 2, 3, SEND, END, and CLR. 5) Command module works properly? No Yes 11) Repeat 4) after mounting. 6) Replace original command module. 12) (a) (b) (c) Perform functional test. Call MCSI to activate ESN and receive phone number. Program phone. 7) Subsititute a good transceiver. 8) Repeat 4). Yes 13) Repeat 4) after mounting. 9) Command module works properly? No 10) Substitute good command module again. 15) (a) (b) (c) Perform functional test. Call MCSI to activate ESN and receive phone number. Program phone. 14) Command module works properly? No Yes 16) Cabling is defective. END BE187 BODY ELECTRICAL SYSTEM CELLULAR PHONE 6 1) NO HANDS FREE TRANSMIT AUDIO Verify complaint by making hands free call. Also verify handset audio. 2) Visually inspect command module for damage. 3) Substitute known good command module. 4) Repeat 1). 5) Hands free transmit audio working? No Yes 12) Check proper operation of all buttons after installation. 6) Replace original command module. 7) Subsititute known good transceiver. 8) Repeat 1). 9) Hands free transmit audio working? No Yes 13) (a) (b) (c) Perform functional tests. Call MCSI to activate ESN and receive phone number. Program phone. 10) Substitute good command module again. 11) Repeat 1). 14) Hands free transmit audio working? No Yes 15) (a) (b) (c) Perform functional tests. Call MCSI to activate ESN and receive phone number. Program phone. 16) Replace original command module. 17) Cabling is defective. END BE188 BODY ELECTRICAL SYSTEM CELLULAR PHONE 7 1) NO HANDS FREE AUDIO OR TONES FROM LEFT REAR SPEAKER Verify complaint by powering up the phone and listening for tones when keys are pressed. 2) Turn off the phone. Turn on AM/FM radio. Listen for audio at left rear speaker. 3) Audio at left rear speaker? Yes No 10) Substitute known good relay module. 4) Inspect connections at transceiver and relay module. 11) Repeat 2). 5) Loose connection? No Yes Yes 12) Audio at left rear speaker? No 6) Changed relay module previously? Yes 13) Replace original relay module. Speaker or cabling defective. No 7) Substitute known good relay module. END 8) Repeat 1). 14) Repeat 1). 9) Tones at left rear speaker? Yes No No 15) Tones at left rear speaker? Yes END END 18) Replace original relay module. 16) Reconnect and repeat 1). No 17) Tones at left rear speaker? Yes CONTINUED ON NEXT PAGE END BE189 BODY ELECTRICAL SYSTEM CELLULAR PHONE CONTINUED FROM PREVIOUS PAGE 19) Substitute known good transceiver. 20) Repeat 1). 26) (a) (b) Perform functional test. Call MCSI to activate ESN and receive phone number. Program phone. 21) Tones at left rear speaker? No Yes (c) 22) Install known good relay again. END 23) Repeat 1). 27) (a) (b) Perform function test. Call MCSI to activate ESN and receive phone. Program phone. 24) Tones at left rear speaker? No Yes (c) 25) Cabling is defective. END END BE190 BODY ELECTRICAL SYSTEM CELLULAR PHONE 8 1) NO AM/FM RADIO OUT OF LEFT REAR SPEAKER Turn on the AM/FM radio with the phone off. 2) Radio audio at left rear speaker? Yes No 11) Substitute good relay module. 3) Turn on both phone and AM/FM radio. 12) Repeat 1). 4) Radio audio at left rear speaker? No Yes 13) Radio audio at left rear speaker? No Yes END 5) Substitute known good transceiver. 14) Cabling or speaker defective. 6) Radio audio at left rear speaker? No Yes No problem is found. 7) Replace original transceiver. 16) a) b) c) Perform functional test. Call MCSI to activate ESN and get phone number. Program phone. 8) Substitute known good relay module. END 9) Repeat 1). Yes 20) a) b) Perform functional test. Call MCSI to activate ESN and get phone number. Program phone. 10) Radio audio at left rear speaker? No c) 17) Substitute known good transceiver again. Cabling defective. END 18) Repeat 1). Yes 19) Radio audio at left rear speaker? No BE191 BODY ELECTRICAL SYSTEM CELLULAR PHONE 9 1) AM/FM RADIO DOES NOT MUTE DURING CALLS Verify the complaint by turning on the AM/FM radio and then placing a phone call. If working properly, radio will mute once a call is in progress. 2) Substitute known good transceiver. 6) a) b) Perform functional test. Call MCSI to activate ESN and receive phone number. Program phone. 3) Repeat 1). Yes c) 4) AM/FM Radio mutes? No 5) Either cabling or AM/FM radio is defective. END BE192 BODY ELECTRICAL SYSTEM CELLULAR PHONE 10 1) RADIO WILL NOT GO INTO PROGRAMMING MODE Try the programming sequence several times being sure: a) b) Proper sequence is being used. Not to pause too long between keystrokes. 2) Is the radio in programming mode? No Yes END 3) Enter the manual test mode and use the 55 # programming method to acquire the six digit security code. Yes 7) Repeat programming procedure using the correct security code. 4) Security code is different from one used earlier? No 8) Is the radio in programming mode? No Yes 5) Is the user mode programming bit disabled in 55 # programming method? No Yes 9) Enable the programming bit in the 55 # sequence. END No 10) Is the radio in programming mode? Yes 6) Enter the manual test mode and reset the three times counter using the 32 # command. Wipe out the memory. Repeat programming sequence. END BE193 BODY ELECTRICAL SYSTEM CELLULAR PHONE DIAGNOSIS PROCEDURE FOR CABLING BE13303 DIAGNOSIS PROCEDURE Step 1 Disconnect connectors A and C, B and D, then connect A and B. This method returns the audio connection to the original condition before connection of the receiver and relay module, so that it can be judged whether the rear speaker and vehicle wire are normal or not. Step 2 If the result in step 1 is normal, replace the subwire. BE194 BODY ELECTRICAL SYSTEM CELLULAR PHONE TROUBLESHOOTING (Docking portable type) BE13404 STEP 1: Determine whether the complaint involves use in portable mode, mobile mode or both. STEP 2: Verify the complaint: If the problem is described as intermittent, attempt to reproduce the conditions during the problem. If the complaint can not be verified, do not change any components. Note: If problem relates to static, no service or dropped calls, please see section on "CELLULAR SYSTEM PERFORMANCE". STEP 3: Always suspect programming first, especially for recently installed and/or programmed phones. This includes both feature and NAM programming (see section entitled "Programming Check"). STEP 4: If the problem is determined to be in the hardware, refer to the flow diagrams listed by mode and complaint. Note: If phone functions properly in portable mode, it is highly unlikely the portable (handset) is the problem in mobile mode. Note: If in mobile mode, phone powers up "LOANER", the transceiver is not a "Docking Portable" transceiver (possibly a mobile only transceiver) or the portable is not a "Docking Portable" unit. BE195 BODY ELECTRICAL SYSTEM CELLULAR PHONE PROGRAMMING CHECKFEATURES 1) Check to see if " V " appears at power up in both portable and mobile modes. This indicates at least one nonstandard setting. 2) Does " V " appear on powerup? No Yes Perform feature status review (Fcn + 0 + 9 + Rcl: # or * to scroll) on mode(s) with " V ". 3) See if complaint falls under the problems caused by improperprogramming listed below. Feature setting causing problem? No Change feature or if necessary, return features to standard setting via Master Reset. (Fcn + 0 + 6digit security code twice + 1 + Sto) Yes END BE196 BODY ELECTRICAL SYSTEM CELLULAR PHONE PROGRAMMING CHECKBY PROBLEMS BE13504 1. Related to NOT BEING ABLE TO PLACE OR RECEIVE CALL (1) Check E.S.N. given to system provider (place portable in test mode: press # + 38 + # and use "*" to scroll). This ESN also can be seen on the back of the portable when the battery is removed. (2) Phone must be programmed in portable mode. If the phone is programmed in mobile mode, the phone will not be able to place calls. (3) Check NAM programming in portable mode. Check programming parameters as provided by programming guide and system provider(s). Check for proper two phone number programming if applicable. Note that the NAM programming in mobile mode is only used as a method to program the lock and security codes in mobile mode. (4) Check Selectable System Scan for improper setting. Setting to SCAN A, SCAN B, Home, or ROAM can cause "No Service" or "ROAM" conditions. Remember portable and mobile modes each have separate Selectable System Scans. (5) Check service level, for call restrictions. (Set to service level 4 for full use) Service level 1 2 3 4 5 6 Command Module only locations 1, 2, 3 function fully functional disabled fully functional Voice Recognition access denied fully functional fully functional access denied only allows use with numbers 7 digits or less fully functional only allows use with numbers 7 digits or less fully functional (6) If two phone number operation has been programmed (Step 10, 2nd phone number. bit 1 = on, 0 = off), ensure currently active number is correct and registered for service (Rcl # to check). 2. Related to NOT BEING ABLE TO UNLOCK PHONE (1) The phone in portable and mobile modes has separate unlock and security codes. They are not downloaded upon powerup. Check unlock codes in both portable and mobile modes. Attempt to unlock phone with unlock code corresponding to its mode. 3. Related to FEATURES NOT BEING ACCESSIBLE (1) The security code is needed to access some features. Confirm security codes in both portable and mobile modes, and attempt feature access with correct code. BE197 BODY ELECTRICAL SYSTEM CELLULAR PHONE CELLULAR SYSTEM PERFORMANCE INFORMATION Most complaints relating to the performance of the cellular telephone are not due to a malfunction of the Lexus Telephone System or the Cellular Network itself. It is more likely that the cause lies in the characteristics inherent to wireless communications. Radio signals both transmitted and received by the cellular telephone work best when there is an unobstructed path between the vehicle's antenna and the network's "base site" antennas. Because of the reflecting characterisitics of the cellular phone radio signal, directed and reflected signals may reach the antenna at the same time. ("multipath"). They cancel each other out creating small "islands" where audio "nulls" occur. As the car moves through these spots, the caller will hear a momentary flutter. This same characteristic causes "ghost" images in television when an airplane files over. Multipath can also cause a "crosstalk" phenomenon, where the driver may temporarily hear another cellular conversation. Other common symptoms which may occur in a cellular conversation are: Symptom Static Cause Lack of coverage or "Multipath" condition. Crosstalk (cochannel or adjacent channel interference or receiver intermodulation.) Dropped calls The cellular telephone has captured a "voice channel" from another base site due to weak coverage or multipath condition. This is a landline or system coverage problem. Weak coverage area, multipath condition, or "system" drop. Clicks/occasional chopped word. Increased/decreased volume at either landline or vehicle Echo or feedback. System handoff to another base site. The current "Voice channel" that the system has assigned to the cellular telephone has a higher or lower gain, or more or less "sidetone" compared to a previous channel. BE198 BODY ELECTRICAL SYSTEM CELLULAR PHONE BE199 BODY ELECTRICAL SYSTEM CELLULAR PHONE ADDITIONAL SYSTEM COVERAGE TIPS Each cellular system provides unique geographical coverage patterns which have weak signal areas within its boundaries due to topography, manmade structures, etc. Thus, sometimes switching a customer over to the other cellular system provider can make sense in providing better coverage for a customer's particular phone use area. 2. Enlist the customer's help in providing cellular system coverage troubleshooting information. Use of the signal strength meter can help provide the information regarding strength of the system coverage where problematic conditions occur. SPECIFIC PORTABLE COVERAGE TIPS The portable is more likely to be affected by the strength of the cellular system coverage since it can be carried into more problematic locations (i.e. buildings) and since its output power is lower than the mobile. The antenna is designed for optional performance with the antenna extended. The customer should extend the antenna especially if the following occurs: (a) Signal strength meter shows low signal strength. (b) NS (no service) lights flashes or lights steadily. (c) Weak signal alert is indicated. (series of beeps, "call" appears in display) 1. BE200 BODY ELECTRICAL SYSTEM CELLULAR PHONE Portable Troubleshooting 1) No Does complaint involve: (a) (b) (c) dropped calls static during call sometimes can't place calls? Yes 9) Try known good charged battery. 2) Will portable power up? Yes No 10) Yes Will portable power up? No 3) Can complaint be verified? No 7) Perform operational check. 11) 8) Any problems seen? No END 12) Charge customer's battery enough to test. (8 hrs. on overnight charger or 1/2 hr. in charger/cradle IGN must be on.) 15) * Portable defective END Yes Yes Will portable power up? Yes No 16) Battery damaged or defective 4) i.e. Ensure problem not related to programming No Tx Audio No Rx Audio Display inoperative Flip won't end/answer call Etc. 13) Inform customer on charging batteries END END 5) Problemdue to programming? No Yes 14) Change programming: instruct customer 6) Portable defective* END END * Returned portables deemed "No Trouble Found" may be rejected by Motorola. CONTINUED ON NEXT PAGE BE201 BODY ELECTRICAL SYSTEM CELLULAR PHONE CONTINUED FROM PREVIOUS PAGE 17) Check programming 18) Problem related to programming? No Yes 25) Changeprogramming 19) Review section entitled "Cellular System Performance" 26) Perform operational check 20) Perform operational check END 21) Any problems seen? No 27) Instruct customer on cellular system coverage: Have them check signal strength meter when problem occurs: Consider switching Cellular System. Yes 22) Ensure problem not related to programming END 23) Problem due to programming? No Yes 28) Change programming: instruct customer 24) Portable defective* END END * Returned portables deemed "No Trouble Found" may be rejected by Motorola. BE202 BODY ELECTRICAL SYSTEM CELLULAR PHONE PORTABLE OPERATIONS CHECK STEP 1. Fully charge the customer's batteries. STEP 2. Turn the unit on. STEP 3. Observe the wakeup. "LEXUS" is displayed, the indicators flash, and a DTMF tone is heard. STEP 4. If the display shows Loc'd, enter the threedigit unlock code. Observe that Loc'd is no longer displayed. STEP 5. Enter seven 8's in the display and note that all segments are lit. Clear the display by pressing "Clr". STEP 6. Enter "123456789*0#" and observe that the display reads 6789AOC. STEP 7. Store this in a empty memory location. STEP 8. Enter "CLR + Rcl + mem.loc" and observe the display. It should alternate between mem.loc. # 345 and 6789AOC. STEP 9. Adjust the speaker volume by pressing and holding the side volume switch. Repeat other direction. Observe that all appropriate levels of sound are accessed in both directions. STEP 10. Adjust the alert volume by pressing "FCN" then the side volume switch. Observe that all appropriate levels of sound are accessed in both directions. STEP 11. Place a short phone call, pay attention to sound quality on both ends, and check the Signal Strength Meter. BE203 BODY ELECTRICAL SYSTEM CELLULAR PHONE Phone Will Not Go Into Programming Mode (BOTH PORTABLE AND MOBILE MODES) 1) Try the programming sequence several times being sure: (a) (b) proper sequence is being used not to pause too long between keystrokes 2) Is the phone in programming mode? No Yes END 3) Enter the manual test mode and use the 55# programming method to acquire the six digit security code. 7) Repeat programming procedure using the correct security code. 4) Security code is different from one used earlier? No Yes No 8) Is the phone in programming mode? Yes END 5) Is the User mode programming bit disabled in the 55# programmingmethod? (entry 11, bit C7) No Yes 9) Enable the programming bit in the 55# sequence. No 6) Enter the manual test mode and reset the fifteen times counter using the 32# command. Note: This will erase memory including customer's stored phone numbers. 10) Is the phone in programming mode? Yes END END BE204 BODY ELECTRICAL SYSTEM CELLULAR PHONE FAST BUSY SIGNAL OR RECORDING ALWAYS RECEIVED WHEN PLACING CALLS (BOTH PORTABLE AND MOBILE MODES) 1) Verify complaint by placing a phone call in both portable and mobile modes. Ensure that a proper phone number is being sent. 2) Fast busy received in both portable and mobile modes? No Yes 11) Highly likely a programming or activation problem. 3) Try mode which gives fast busy several times to be sure the Cellular System isn't truly busy. 12) Check Programming: see section entitled "Programming Check". Also verify problem is not related to 2nd phone number programming, 4) Check programming: see section entitled "Programming Check" Proceed if no programming problems found. Mobile mode Fast busy Portable mode Fast busy 5) *Portable defective 14) 13) If no programming problems found: Call System Provider to ensure Electronic Serial Number (ESN) is activated. No Number activated? 18) 6) Substitute known good transceiver. Ask System Provider for reason ESN is not activated: (a) System provider hasn't activated number yet? Customer on denied service file? Customer has unpaid charges? 7) Place a phone call (Repeat several times if fast busy received) END Yes (b) (c) 8) FAST BUSY all times? 15) Verify that activated ESN is correct by using 38# in test mode in portable mode. No 10) Transceiver defective. 9) Yes Recheck all steps 19) Conditions (a) and (b) Have MCSI activate number. Condition (c) refer customer to MCSI END 16) ESN correct? * Returned portables deemed "No Trouble Found" may be rejected by Motorola. No 20) Call System Provider to activate correct ESN Yes 17) Recheck all steps END BE205 BODY ELECTRICAL SYSTEM CELLULAR PHONE *STATIC DURING CALLS / DROPPED CALLS (MOBILE MODE ONLY) 1) Most problems of this nature are due to poor system coverage. Discuss with customer if problems are occurring in same geographical area. If static/dropped calls are geographic/system coverage related, explain to customer that it is not hardware related. 2) Visually check antenna, coupling box and antenna connector. (a) (b) Make sure the coupling box and base are in line with each other and that the base is not over a defogger wire, or inglass FM antenna. Make sure the antenna cable is connected securely. 3) *Access the transceiver and connect the test connector in series with the power cable. Then turn on the phone. 4) *Let the "NO SVC" light go out, and read and record the RSSI. 5) *Repeat the procedure with use of magnetic mount antenna and compare the RSSI reading with that recorded previously. 6) "Do the RSSI readings differ by more than 15? Yes No 14) During phone call twist or shake antenna cable and/or power cable connections. Listen for static and/or dropped calls. Identify defective cable? No Yes 16) 7) Ohm out the antenna cable for a short or open circuit. 8) Is the cable good? Yes No Move vehicle to known good cellular service area for both service providers. Place several calls with customer transceiver. If static observed, temporarily replace customer transceiver with known good transceiver (dealership demonstration unit) with active phone number. Place several calls. Compare performance to customers original transceiver. 9) Replace cable. 17) Does original customer transceiver exhibit noticeably worse performance than replacement transceiver? No 18) No trouble found. Cellular service related. Yes 10) *Repeat 3), 4) and 5). Yes 11) Do the RSSI readings differ by more than 15? 13) No Perform functional test. 19) Replace transceiver. 12) Replace antenna. 15) Replace defective cable. END *These test assume good cellular coverage at location of testing. NOTE: It may be necessary to move the vehicle outside the service bay to an open location that is known to have good cellular system coverage. BE206 BODY ELECTRICAL SYSTEM CELLULAR PHONE Phone Does Not Power Up or Cycles Up and Down (MOBILE MODE ONLY) 1) Verify phone is installed properly; particularly check the subwire cable to the transceiver, the charger/cradle connectors and the portable's coil cord connections. 2) Check fuse on the power to cellular mobile telephone. 3) Check for moisture or condensation in connector BW3. 4) Substitute a known good coil cord and try to turn the phone on. 5) Does the phone turn on? No Yes 22) Coil Cord defective 6) Replace the original coil cord. END 7) Substitute a known good charger/cradle and try to turn the phone on. 8) Does the phone turn on? No Yes 23) Charger/cradle defective 9) Replace the original charger/cradle. END 10) Substitute a known good charger/cradle and try to turn the phone on. 11) Gain access to the transceiver and unplug the subwire cable to the transceiver. CONTINUED ON NEXT PAGE BE207 BODY ELECTRICAL SYSTEM CELLULAR PHONE CONTINUED FROM PREVIOUS PAGE 12) With a voltmeter, measure the voltage with respect to ground (terminal 3) on pins 4 and 6. 13) Is battery A + present? Yes No 24) Vehicle wiring or subwire is defective. 14) Substitute a known good transceiver and try to turn on the phone again. END 15) Does the phone turn on? No Yes 25) Transceiver is defective; perform functional test. 16) Replace the original transceiver. END 17) Remove portable and coil cord from charger/cradle; Connect coil cord into side port on transceiver. 18) Does phone power up? (buzzing sound in earpiece is normal with this connection.) No Yes 26) Vehicle wiring defective 19) As a last resort, substitute a known good portable. If the portable works well in portable mode, it is very unlikely that the cause of the problem. Try to power up the phone. END 20) Does the phone turn on? No Yes 27) *Portable is defective 21) Repeat the testing using all known good components to eliminate the possibility of two or more defects or a mistake in testing. END * Returned portables deemed "No Trouble Found" may be rejected by Motorola. BE208 BODY ELECTRICAL SYSTEM CELLULAR PHONE "NO SVC" LIGHT STAYS ON (MOBILE MODE ONLY) 1) Verify complaint by checking to see that the "NO SVC" light is on when unit is powered up. 11) Set to Standard unless at customer preference. Repeatedly press until at correct setting. Then press store within six seconds. 2) Visually inspect antenna whip, cable and coupling box for damage. Replace if damaged. 12) Repeat 1) 3) Check to see if Selectable System Scan Programming is nonstandard. (RCL*). Yes 13) No SVC light on? No 4) Programming STD AB or STD BA? Yes 5) Connect a magnetic mount antenna to the transceiver and power up the phone. 14) Substitute known good transceiver. No END 6) No SVC light on? No Yes 15) Repeat 1) 7) Ohm out the antenna cable for a short or open circuit. Yes 16) No SVC light on? No 8) Is cable good? No 17) (a) (b) (c) Yes 9) Replace full antenna assembly. END Perform functional test. Call MCSI to activate ESN and receive phone number. Program phone 10) Perform functional test. 18) Call system provider to see if cell is down. Ensure that you can receive service at vehicle location. END CONTINUED ON NEXT PAGE BE209 BODY ELECTRICAL SYSTEM CELLULAR PHONE CONTINUED FROM PREVIOUS PAGE 19) Replace antenna cable 20) Repeat 1) 21) No SVC light on? No END 22) Replace full antenna assembly. 23) Perform functional test. END * THESE TESTS ASSUME ADEQUATE CELLULAR COVERAGE AT LOCATION OF TESTING!! BE210 BODY ELECTRICAL SYSTEM CELLULAR PHONE COMPLAINTS CONCERNING HANDSFREE AUDIO* (MOBILE MODE ONLY) *Covers: 1) 2) 3) Handsfree transmit audio too low or too high. Customer complains of feedback or echo. The party the customer calls complains of feedback or echo. 1) Verify complaint by making handfree call. 2) Read out HANDSFREE MIC GAIN STATUS by doing the following: (a) (b) Power up the phone in mobile mode Press Fcn + 091 +Sto on the handset. 3) Take the appropriate action based upon the complaint. (a) (b) (c) Audio too low increase HF MIC GAIN Audio too high lower HF MIC GAIN Feedback or echo lower HF MIC GAIN Set to HIGH gain: Set to NOM gain: Set to Low gain: Fcn + 092 + Sto Fcn + 091 Clr Fcn + 092 + Clr 4) Verify status Fcn + 091 + Sto 5) Make HANDSFREE Call to verify operation and improvement. Important Note: Be careful not to turn off voice recognition keypress operation via Fcn + 093 + Clr (off): Fcn + 093 + Sto is on. BE211 BODY ELECTRICAL SYSTEM CELLULAR PHONE DIALING PROBLEMS WITH COMMAND MODULE (MOBILE MODE ONLY) 1) Verify problem by testing the four Command Module buttons. 2) Visually examine the Command Module and buttons for damage. 3) Power up the phone. Remove the Command Moduleand measure the voltage between the two module connector pins. 4) Is the measured D.C. voltage between 8.5 V and 10.0 volts? Yes No 14) Is the D.C. voltage at connector T17 between pins 1 and 6 between 8.5 and 10.0 V? No Yes 16) Bad spiral cable in steering wheel or other defective vehicle wiring. 5) Substitute a known good Command Module 15) Substitute a known good transceiver subwire cable 6) Test the four Command Module buttons for dialing 1, 2, 3, SEND, END and CLR 7) Command Module works properly? Yes 24) Repeat 6) after mounting END No 8) Substitute a known good transceiver END 9) Repeat 6) 17) Is measured D.C. voltage between 8.5 and 10.0 V at T17? No Yes 19) Subwire defective. 10) Command Module works properly? No 22) Defective transceiver: Perform functional test Yes 18) Substitute a known good transceiver END Yes 11) Substitutegood Command Module again END 20) Is measured voltage between 8.5 and 10.0 V at T17? No 12) Repeat 6) Yes 13) Command Module works properly? No 23) Repeat all steps 21) Repeat steps all BE212 BODY ELECTRICAL SYSTEM CELLULAR PHONE NO HANDSFREE TRANSMIT AUDIO (MOBILE MODE ONLY) 1) Verify complaint by making handsfree call. Also verify handset audio. 2) Visually examine the Command Module and buttons for damage. See page entitled "DIALING PROBLEMS WITH COMMAND MODULE". 6) Do the Command Module buttons work? Yes No END Place a phone call. In handsfree mode can you hear the other party if you put your ear to the earpiece of the portable residing in the cradle? Yes Substitute known good charger/cradle No Substitute known good command module 12) Repeat 1) 12) Repeat 1) 10) HF Tx Audio Working? Yes No deReplace originalcharger/cradle 10) No HF Tx Audio Working? Yes Defective command module: perform functional check Charger/cradle fective Replace originalcommand module END Hookswitch line in vehicle likely defective Substitute known good transceiver END END 12) Repeat 1) 10) HF Tx Audio Working? Yes Transceiver defective; perform functional check No Repeat all steps Replace original command module BE213 BODY ELECTRICAL SYSTEM CELLULAR PHONE BATTERY CHARGER INDICATOR NOT LIT (NO BATTERY CHARGING WHEN PORTABLE IS IN CHARGER/CRADLE) (MOBILE MODE ONLY) 1) Place portable into charger/cradle; Turn on ignition and inspect the battery charger indicator. 2) Is the indicator lit (red or green)? No Yes 6) No trouble found 3) Substitute a known good charger/cradle: place the portable into the charger. END 4) Is the indicator lit? Yes No 7) Cabling defective. 5) Charger/cradle defective 8) Check for IGN. Voltage at Pins 2 and 3 of the 3pin connector on the charger/cradle cable. END END BE214 BODY ELECTRICAL SYSTEM CELLULAR PHONE NO HANDSFREE AUDIO OR TONES FROM LEFT REAR SPEAKER (MOBILE MODE ONLY) 1) Verify complaint by powering up the phone and listening for tones when keys are pressed. 10) Substitute known good relay module 2) Turn off the phone. Turn on AM/FM radio. Listen for audio at left rear speaker. 11) Repeat 2) 3) Audio at left rear speaker? Yes No Yes 12) Audio at left rear speaker? No 4) Inspect connections at transceiver and relay module. 13) Replace original relay module. Speaker or cabling defective. END 5) Loose connection? No Yes 6) Change relay module previously? No 7) Substitute known good relay module Yes 14) Repeat 1) No 15) Tones at left rear speaker? Yes END 8) Repeat 1) 16) Reconnect and repeat 1) 9) Tones at left rear speaker? Yes END 18) Replace module original No No 17) Tones at left rear speaker? Yes relay END CONTINUED ON NEXT PAGE BE215 BODY ELECTRICAL SYSTEM CELLULAR PHONE CONTINUED FROM PREVIOUS PAGE 19) Substitute known good transceiver 20) Repeat 1) 21) Tones at left rear speaker? Yes 26) Transceiver defective: perform functional test. No 22) Install known good relay again END 23) Repeat 1) 24) Tones at left rear speaker? No Yes 27) Transceiver defective: perform functional test. 25) Cabling is defective END END BE216 BODY ELECTRICAL SYSTEM CELLULAR PHONE AM/FM RADIO DOESN'T MUTE DURING CALLS (MOBILE MODE ONLY) 1) Verify the complaint by turning on the AM/FM radio and then placing a phone call. If working properly, radio will mute once a call's in progress. 2) Substitute known good transceiver 3) Repeat 1) 4) AM/FM radio mutes? Yes 6) Transceiver defective; perform functional test. No 5) Either cabling or AM/FM radio is defective. END END BE217 BODY ELECTRICAL SYSTEM CELLULAR PHONE VOICE RECOGNITION TROUBLESHOOTING (MOBILE MODE ONLY) 1. TRAINING Proper training is a key component to optimal voice recognition results. Make sure the customer trains the phone under the following conditions. (a) Engine idling (b) Fan speed on low (c) User in drivers seat in normal driving position with head forward towards microphone. (d) User speaks in a clear, normal voice in response to the prompts. A noticeable improvement in the recognition rate can often be made by having the user retrain the phone after using it for several weeks. By this time he/she is more acclimated to speaking to the phone and has settled into a pattern of speaking the directory name tags. 2. PROBLEMS ENCOUNTERED (1) Access Denied Message GivenService level restrictions may be in place; set service level to 4 for full use. (2) Name SubstitutionSubstitution occurs when names are too similar for proper distinction. Have the customer change problematic words to make them more distinguishable from each other. Avoid onesyllable words. Names like "Karen's Home" and "Karen's Office" have a higher probability for substitution. (3) Inability to Access Voice Memory Tags (a) Poor voice tagsscroll through the voice memory and note those name tag locations which sound particularly weak or unclear; these voice tags could be candidates for retraining for the customer. (b) Make sure the customer is saying the name exactly how he trained it. (c) The user must speak louder while keeping the same tone and pitch of voice used during training, especially when background noise is significant (i.e. while travelling on the highway, in presence of loud trucks, etc.) (d) Make sure the user is in the correct user mode (A or B) when speaking the voice tags. (4) Customer dislikes the sound of the repeated nameAs described in the user's manual, "Thank you" or a beep can be programmed in place of the repeated name. BE218 BODY ELECTRICAL SYSTEM CELLULAR PHONE COMPONENTS BE13604 BE219 BODY ELECTRICAL SYSTEM CELLULAR PHONE ANTENNA REMOVAL BE08W07 1. (a) (b) (c) REMOVE INNER COUPLING UNIT Remove 4 clips. Pull out antenna cable from roof headlining. Disconnect antenna cable from coupling unit. (d) Using a scraper or screw driver, remove inner coupling unit from back window glass. NOTICE: Take care not to damage the back window glass. 2. REMOVE ANTENNA MAST (a) Remove antenna mast from joint A. (b) Remove a screw, washer and joint A. 3. REMOVE OUTER COUPLING UNIT Using a scraper or screw driver, remove outer coupling unit. NOTICE: Take care not to damage the back window glass. ANTENNA INSTALLATION BE08X06 1. SELECT ANTENNA INSTALLATION POSITION Install the antenna in the position shown in the illustration. HINT: The antenna must not be touching the glass printed antenna. After temporarily positioning the antenna cable and coupling unit against the glass, install the antenna in position opposite where the upper edge of the coupling unit touches the roof headlining. BE220 BODY ELECTRICAL SYSTEM CELLULAR PHONE 2. CLEAN SURFACE FOR ANTENNA INSTALLATION (a) Clean the glass surface for installation of the inner coupling unit and outer coupling unit. (b) Clean the glass again using the window cleaner contained in the kit. (c) Wipe the glass surface dry using a dry paper towel. HINT: Wipe the glass radially. 3. INSTALL OUTER COUPLING UNIT ON THE OUTSIDE OF THE WINDOW GLASS (a) Remove joint A from antenna mast. Install joint A to joint B. NOTICE: When replace the mast, replacing the mast and joint A set. (b) Put the outer coupling unit in the selected location. Make sure it is possible to adjust the joint A and outer coupling unit. NOTICE: Do not remove the protective paper from the adhesive on the bottom of outer coupling unit. Remove the protective paper from the outer coupling unit and apply plenty of sealant to the bottom surface of the coupling unit, as shown in the figure. HINT: Use the sealant contained in the kit. (c) (d) Adhere the outer coupling unit strongly against the installation location until the entire doublesided tape comes in contact with the glass and the sealant comes out. NOTICE: The adhesive pad will stick to the glass instantly and cannot be removed without having to replace it. Be sure the position of the outer coupling unit is correct before it touches the glass. (e) Using a scraper or spatula, remove excess sealant. HINT: Using a rag, wipe excess sealant which could not be removed by a spatula. When wiping by a rag, care should be taken not to have the rag in between glass and outer coupling unit. NOTICE: Confirm that the sealant is covering the doublesided tape making it waterproof. If not, reapply sealant and fill up the gap. Keep the antenna mast off for 24 hours until the sealant is completely cured. BE221 BODY ELECTRICAL SYSTEM CELLULAR PHONE Both the tape and silicone adhesives take longer to set and cure when the surfaces are cold. If the installation takes place in an area where temperatures are below 50VF (10VC) let the adhesive cure for least 48 hours before attaching the antenna mast. (f) Install the antenna mast to joint A. 4. INSTALL INNER COUPLING UNIT ON THE INSIDE OF THE WINDOW GLASS (a) Verify the positioning of the inner coupling unit so that it will be centered over the outer coupling unit on the outside, with the connector positioned horizontally to the right side of the vehicle. (b) Remove the protective paper from the coupling unit. NOTICE: The adhesive pad will stick to the glass instantly and cannot be removed without having to replace it. Be sure the position of the coupling unit is correct before it touches the glass. (c) Install the inner coupling unit to the glass. (d) Connect the antenna cable. (e) Wrap the sponge round the connector. HINT: Use the sponge contained in the kit. (f) Install the connector back to its original position. BE222 BODY ELECTRICAL SYSTEM DOOR LOCK CONTROL SYSTEM DOOR LOCK CONTROL SYSTEM DESCRIPTION The door lock control system has a keyinterlocked door lock and unlock function and a keyconfinement prevention function. All doors can be locked and unlocked simultaneously by key operation at the front right or left door (the key needs to be operated twice to unlock the doors at the driver's door). If the door lock operation is performed when one of the doors is open with the ignition key inserted in the key cylinder, doors are unlocked automatically to prevent the ignition key from being left inside the vehicle. The luggage compartment door can be opened by electromagnetic opener. For the function of component parts of this system, refer to the circuit description in circuit inspection. PARTS LOCATION BE223 BODY ELECTRICAL SYSTEM DOOR LOCK CONTROL SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING Perform troubleshooting in accordance with the procedure on the following pages. P. BE224 P. IN23 P. BE229 P. BE230 CUSTOMER PROBLEM ANALYSIS CHECK SHEET BE224 Weather Conditions When Problem Occurred Date Vehicle Brought In Customer's Name Frequency Problem Occurs Date of Problem First Occurred DOOR LOCK CONTROL System Check Sheet Outdoor Temperature Weather / BODY ELECTRICAL SYSTEM / Odometer Reading Registration No. Registration Year Frame No. DOOR LOCK CONTROL SYSTEM / / V Constant V Sometimes ( times per day, month) V Once only V Fine V Cloudy V Rainy V Snowy V Various/Others V Hot V Warm V Cool V Cold (Approx. F( C)) Inspector's Name: / / km Miles TERMINALS OF ECU No. A9 A5 A6 A7 A8 A4 A2 A3 A1 Symbol ACT ACT+ PRLY IG ACC +B2 TO E Power Source Power Main Relay Ignition Switch "ON" Ignition Switch "ACC" Ground Terminal Name Luggage Compartment Door Opener Motor Door Lock Motor Door Lock Motor BODY ELECTRICAL SYSTEM B14 B15 B16 B17 B18 B19 B20 B21 B22 B23 B24 B25 B10 B11 B12 B13 No. B9 B5 B6 B7 B8 B4 B2 B3 B1 DOOR LOCK CONTROL SYSTEM Symbol DSWH LSWD UL1 DSWP KSW LSWP L1 TAIL HORN SRLY HEAD SH IND TSW LUG +B1 L2 UL3 DSWD UL2 DSWL LSWR CTY Door Unlock Detection Switch Door Open Detection Switch Luggage Compartment Door Courtesy Switch Door Lock Control Switch (Lock) Door Key Lock and Unlock Switch Door Open Detection Switch Door Lock Control Switch (Unlock) Luggage Compartment Door Key Operated Switch Headlight Theft Deterrent Horn Security Indicator Light Luggage Compartment Door Opener Switch Engine Hood Courtesy Switch Door Unlock Detection Switch Door Key Lock and Unlock Switch Door Open Detection Switch Key Unlock Warning Switch Door Unlock Detection Switch Door Key Lock and Unlock Switch Taillight Horn Ignition Switch "ST" Power Source Terminal Name BE225 STANDARD VALUE OF ECU TERMINAL BE226 B1Ground A9Ground A4Ground A1Ground Terminals B7A4 B6A4 B5A4 B4A4 B3B4 A4A8 A4A7 A4A6 A2A3 B24 +B1Ground +B2Ground EGround DSWDE Symbols DSWLE LSWRE ACT () ACT(+) EPRLY EACC CTYE UL3E TOE L2E EIG BODY ELECTRICAL SYSTEM Door open detection switch (driver's) OFF (door closed) Door open detection switch (driver's) ON (door opened) Door open detection switch (Rear door) OFF (door closed) Door open detection switch (Rear door) ON (door opened) Door unlock detection switch OFF. (Rear door) Door unlock detection switch ON. (Rear door) Always Always Ignition switch ON. Always Always Always Door key lock and unlock switch OFF or at "lock" position. Door key lock and unlock switch at "unlock" position. Door lock control switch OFF or at "unlock" position. Door lock control switch at "lock" position. Luggage compartment door courtesy switch OFF. Luggage compartment door courtesy switch ON. Ignition switch is turned to "ACC" position. Luggage Compartment door opener switch "not pulled". DOOR LOCK CONTROL SYSTEM Condition 1 MW or higher Below 1 W Below 1 W Below 1 W Below 1 W Below 1 W Below 1 W 1014 V 1014 V 1014 V 1014 V Below 1 W 1 MW or higher 1 MW or higher 1 MW or higher 1 MW or higher 1 MW or higher Below 100 W Below 50 W Below 50 W Standard Value B21A4 B20A4 B19A4 B16A4 B15A4 B14A4 B13A4 B12A4 B11A4 B10A4 B9A4 B8A4 Terminals DSWHE DSWPE Symbols LSWDE LSWPE HEADE KSWE TSWE LUGE UL1E UL2E INDE SHE BODY ELECTRICAL SYSTEM Door unlock detection switch OFF. Door unlock detection switch ON. (passenger's) Key unlock warning switch OFF. Key unlock warning switch ON. (Key is inserted into key cylinder) Door unlock detection switch ON. (driver's) Engine hood courtesy switch ON. Indicator light circuit Always Light control switch at OFF. Door open detection switch (passenger's) OFF (door closed) Door open detection switch (passenger's) ON (door opened) Door key lock and unlock switch OFF or at "lock" position. Door key lock and unlock switch at "unlock" position. Door unlock detection switch OFF. (driver's) Engine hood courtesy switch OFF. Luggage compartment door opener switch OFF. Luggage compartment door opener switch ON. Luggage compartment door key operated switch OFF. Luggage compartment door key operated switch ON. Door lock control switch OFF or at "lock" position. Door lock control switch at "unlock" position. DOOR LOCK CONTROL SYSTEM Condition 1 MW or higher Below 1 W Below 1 W Below 1 W Below 1 W Below 1 W Below 1 W Below 1 W 1014 V 1014 V Below 1 W Below 1 W 1 MW or higher 1 MW or higher 1 MW or higher 1 MW or higher 1 MW or higher 1 MW or higher 1 MW or higher 1 MW or higher 1 MW or higher Standard Value BE227 BE228 Terminals B25A4 B24A4 B23A4 B22A4 HORNE TAILE L1E Symbols SRLYE BODY ELECTRICAL SYSTEM Ignition switch is turned to ST position (when neutral start switch "P" position) Horn switch OFF Light control switch at OFF. Door key lock and unlock switch at "unlock" position. Door key lock and unlock switch at "lock" position. DOOR LOCK CONTROL SYSTEM Condition 1014 V 1014 V 1014 V 1 MW or higher Below 1 W Standard Value BE229 BODY ELECTRICAL SYSTEM DOOR LOCK CONTROL SYSTEM MATRIX CHART OF PROBLEM SYMPTOMS Perform troubleshooting of the circuits for the applicable problem symptom in the order given in the chart below. Proceed to the page located for each circuit. HINT: S If the instruction "Proceed to next circuit inspection shown on matrix chart" is given in the flow chart for each circuit, proceed to the circuit with the next highest number in the table to continue the check. S If the trouble still reappears even though there are no abnormalities in any of the other circuits, then check or replace the Theft Deterrent and Door Lock ECU as the last step. BE230 BE232 BE234 BE236 BE238 BE240 BE242 BE244 BE246 IN34 BE230 BODY ELECTRICAL SYSTEM DOOR LOCK CONTROL SYSTEM CIRCUIT INSPECTION ECU Power SourceCircuit CIRCUIT DESCRIPTION This circuit provides power to operate the theft deterrent and door lock ECU. WIRING DIAGRAM BE231 BODY ELECTRICAL SYSTEM DOOR LOCK CONTROL SYSTEM INSPECTION PROCEDURES 1 Check DOME fuse. P C OK Remove DOME fuse from R/B No.2 Check continuity of DOME fuse. Continuity OK NG Check for short in all the harness and components connected to the DOME fuse (See attached wiring diagram). 2 Check voltage between terminals +B1 and E of ECU connector. P (1) Remove the No.1 under cover and heater duct. (2) Disconnect the theft deterrent and door lock ECU connectors. Measure voltage between terminals +B1 and E of ECU connector. 10 14 V C OK Voltage: NG OK Proceed to next circuit inspection shown on matrix chart (See page BE229). 3 OK Check for open in harness and connector between ECU and body ground (See page IN29). NG Repair or replace harness or connector. Check and repair harness and connector between ECU and battery. BE232 BODY ELECTRICAL SYSTEM DOOR LOCK CONTROL SYSTEM Actuator Power Source Circuit CIRCUIT DESCRIPTION This circuit provides power to drive the door lock motor and the luggage compartment door opener motor. WIRING DIAGRAM BE233 BODY ELECTRICAL SYSTEM DOOR LOCK CONTROL SYSTEM INSPECTION PROCEDURES 1 Check POWER Mfuse. P (1) Remove the No.1 under cover and LH lower pad. (2) Remove the POWER Mfuse from J/B No.1. Check continuity of POWER Mfuse. Continuity C OK OK NG Check for short in all the harness and components connected to the DOOR fusible link (See attached wiring diagram). *1 2 Check voltage between terminals +B2 of ECU connector and body ground. P (1) Remove No.1 under cover and heater duct. (2) Disconnect the theft deterrent and door lock ECU connector. Measure voltage between terminal +B2 of ECU connector and body ground. 10 14 V C OK Voltage: NG OK Proceed to next circuit inspection shown on matrix chart (See page BE229). *1: The power source is supplied to the actuator (door lock motor, luggage compartment door opener motor) through the theft deterrent and door lock ECU. Accordingly, if a short circuit of the W/H or actuator occurs in the actuator circuit, the POWER Mfuse may become OPEN, so also inspect the actuator (door lock motor circuit on page BE234, and the luggage compartment door opener motor circuit on page BE236). Check and repair harness and connectors between ECU and battery (See page IN29). BE234 BODY ELECTRICAL SYSTEM DOOR LOCK CONTROL SYSTEM Door Lock Motor Circuit CIRCUIT DESCRIPTION This door lock motor locks and unlocks the door in accordance with signals from the ECU. WIRING DIAGRAM BE235 BODY ELECTRICAL SYSTEM DOOR LOCK CONTROL SYSTEM INSPECTION PROCEDURES 1 Check operating sound of door lock motor. C Check operating sound of door lock motor when door lock control switch is pushed to the lock side and unlock side. OK Can hear operating sound of door lock motor. Hint Inspect the door which is malfunctioning. NG OK Check door lock motor. Repair or replace door lock control link. 2 P (1) Remove the door trim and service hole cover. (2) Disconnect the door lock motor connector. (1) Connect positive lead to terminal 4 and negative lead to terminal 3 of door lock motor connector. (2) Connect positive lead to terminal 3 and negative lead to terminal 4 of door lock motor connector. C OK (1) Door lock motor locks door. (2) Door lock motor unlocks door. Hint This inspection must be carried out within 2 seconds. NG OK Replace door lock motor. 3 OK Check harness and connectors between ECU and door lock motor (See page IN29). NG Repair or replace harness or connector. Proceed to next circuit inspection shown on matrix chart (See page BE229). BE236 BODY ELECTRICAL SYSTEM DOOR LOCK CONTROL SYSTEM Luggage Compartment Door Opener Motor Circuit CIRCUIT DESCRIPTION This circuit unlocks the luggage compartment door when the ECU sends signals to the luggage compartment door opener motor. WIRING DIAGRAM BE237 BODY ELECTRICAL SYSTEM DOOR LOCK CONTROL SYSTEM INSPECTION PROCEDURE 1 Check voltage between terminal 1 of luggage compartment door opener motor and body ground. P (1) Remove luggage compartment trim rear cover. (2) Disconnect the opener motor connector. C Measure voltage between terminal 1 of luggage compartment door opener motor and body ground when opener switch is pulled and not pulled. OK OK NG Check harness and connectors between ECU and luggage compartment door opener motor (See page IN29). 2 Check luggage compartment door opener motor. C Connect positive and and negative tor. lead to the opener motor connector lead to the body of the opener mo- OK Operated motor shaft and gear. Hint This inspection must be carried out within 1 second. OK NG Replace luggage compartment door opener motor. Proceed to next circuit inspection shown on matrix chart (See page BE229). BE238 BODY ELECTRICAL SYSTEM DOOR LOCK CONTROL SYSTEM Door Lock Control Switch Circuit CIRCUIT DESCRIPTION When the door lock control switch is pushed to the lock side, Lock terminal of the switch is grounded, and when the switch is pushed to the unlock side, Unlock terminal is grounded (See wiring diagram below). WIRING DIAGRAM BE239 BODY ELECTRICAL SYSTEM DOOR LOCK CONTROL SYSTEM INSPECTION PROCEDURE 1 Check voltage between terminals 2(3), 1(1) of door lock control switch connector and body ground. P Remove the door trim and service hole cover. C 1. 2. Turn ignition switch ON. Measure voltage between terminals 2(3), 1(1) of door lock control switch connector and body ground when door lock control switch is pressed to lock side, unlock side and not pressed. OK Hint The terminal number without brackets is for the LH, and the number with brackets is for the RH. NG OK Check door lock control switch. Proceed to next circuit inspection shown on matrix chart (See page BE229). 2 P C Disconnect the door lock control switch connector. Check continuity between terminals 2(3), 1(1), 4(2) of door lock control switch connector when door lock control switch is pressed to the lock side, and unlock side and not pressed. OK Hint The terminal number without brackets is for the LH, and the number with brackets is for the RH. OK NG Replace door lock control switch. 3 OK Check harness and connectors between ECU and door lock control switch, and switch and body ground (See page IN29). NG Repair or replace harness or connector. *1: Malfunction of the ECU can be considered possible only when the problem symptom is the following: S Lock and/or unlock using the Door Lock Control Switch cannot be done, neither on the driver's side nor on the passenger's side. Check and replace ECU. *1 BE240 BODY ELECTRICAL SYSTEM DOOR LOCK CONTROL SYSTEM Door Key Lock and Unlock Switch Circuit CIRCUIT DESCRIPTION The door key lock and unlock switch is built in the door key cylinder. When the key is turned to the lock side, terminal 3 of the switch is grounded and when the key is turned to the unlock side, terminal 1 of the switch is grounded. WIRING DIAGRAM BE241 BODY ELECTRICAL SYSTEM DOOR LOCK CONTROL SYSTEM INSPECTION PROCEDURE 1 Check door key lock and unlock switch. P (1) Remove the door trim and service hole cover. (2) Disconnect the door key lock and unlock switch connector. Check continuity between terminals 1, 3 and 2 of door key lock and unlock switch connector, when door key lock and unlock switch is turned to the lock side, unlock side and not turned. C OK OK NG Replace door key lock and unlock switch. 2 OK Check harness and connectors between ECU and switch, and switch and body ground (See page IN29). NG Repair or replace harness or connector. Proceed to next circuit inspection shown on matrix chart (See page BE229). BE242 BODY ELECTRICAL SYSTEM DOOR LOCK CONTROL SYSTEM Key Unlock Warning Switch Circuit CIRCUIT DESCRIPTION The key unlock warning switch goes on when the ignition key is inserted in the key cylinder and goes off when the ignition key is removed. The ECU operates the key confinement prevention function while the key unlock warning switch is on. WIRING DIAGRAM BE243 BODY ELECTRICAL SYSTEM DOOR LOCK CONTROL SYSTEM INSPECTION PROCEDURE 1 Check key unlock warning switch. P C Disconnect key unlock warning switch connector. Check continuity between terminal 9 and 10 of key unlock warning switch connector when the key is inserted to the key cylinder or removed. OK OK NG Replace key unlock warning switch. 2 OK Check harness and connectors between ECU and key unlock warning switch, and key unlock warning switch and body ground (See page IN29). NG Repair or replace harness or connector. Proceed to next circuit inspection shown on matrix chart (See page BE229). BE244 BODY ELECTRICAL SYSTEM DOOR LOCK CONTROL SYSTEM Luggage Compartment Door Opener Main Switch and Opener Switch Circuit CIRCUIT DESCRIPTION The luggage compartment door opener main switch is off when it is pushed in, and the luggage compartment door opener switch is on when it is pulled. The ECU energizes the luggage compartment door opener motor only when the main switch and opener switch are on together. WIRING DIAGRAM BE245 BODY ELECTRICAL SYSTEM DOOR LOCK CONTROL SYSTEM INSPECTION PROCEDURE 1 Check luggage compartment door opener main switch and opener switch. P Disconnect the luggage compartment door opener main switch and opener switch connector. Check luggage compartment door opener main switch. Check continuity between terminals of main switch connector. C OK C Check luggage compartment door opener switch. Check continuity between terminals of main switch and opener switch connector. OK OK NG Replace luggage compartment door opener main switch and/or opener switch. 2 OK Check harness and connector between ECU and main switch, and opener switch and body ground (See page IN29). NG Repair or replace harness or connector. Proceed to next circuit inspection shown on matrix chart (See page BE229). BE246 BODY ELECTRICAL SYSTEM DOOR LOCK CONTROL SYSTEM Door Open Detection Switch Circuit CIRCUIT DESCRIPTION The door open detection switch is built in the door lock assembly. It is on when the door is open and off when the door is closed. WIRING DIAGRAM BE247 BODY ELECTRICAL SYSTEM DOOR LOCK CONTROL SYSTEM INSPECTION PROCEDURE 1 Check door open detection switch. P (1) Remove the door trim and service hole cover. (2) Disconnect door open detection switch connector. Check continuity between terminals 1 and 2 of door open detection switch connector when the front door is opened and closed. C OK OK NG Replace door open detection switch. 2 OK Check harness and connectors between ECU and open door open detection switch, door open detection switch and body ground (See page IN29). NG Repair or replace harness or connector. Proceed to next circuit inspection shown on matrix chart (See page BE229). BE248 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM THEFT DETERRENT SYSTEM PARTS LOCATION BE249 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM BE250 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING Perform troubleshooting in accordance with the procedure on the following pages. P. BE251 P. IN23 P. BE254 P. BE259 BE251 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM CUSTOMER PROBLEM ANALYSIS CHECK SHEET THEFT DETERRENT System Check Sheet BE252 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM SYSTEM INSPECTION 1. SETTING OF THE THEFT DETERRENT SYSTEM Setting Conditions (a) Close all the doors. (b) Close the engine hood and luggage compartment door. (c) Remove the ignition key from the ignition key cylinder. Setting Operation When any of the following operations (a), (b) or (c) is done, the theft deterrent indicator light will light up as described. (a) Lock the left or right front door using the key. (All doors are locked by keyinterlinked lock operation) (b) Lock all the doors using the wireless door lock control system (c) With the rear doors locked and with one of the front doors locked, lock the other front door Without using the key (keyless door lock). 2. HINT: When the theft deterrent system is set, doors cannot be locked or unlocked with the door lock control switch and the luggage compartment door cannot be unlocked with the luggage compartment door opener switch. CANCELING OF THE THEFT DETERRENT SYSTEM IN THE SET CONDITION Check if the theft deterrent indicator light is blinking. Canceling Operation When any of the following operations (a), (b), (c) or (d) is done, the theft deterrent system is canceled and indicator light will go off. (a) Unlock the left or right front door using the key. (b) Unlock all the doors using the wireless door lock control system. (c) Insert the ignition key in the ignition key cylinder and turn it to the ACC or ON position. (This is operative only when the theft deterrent system has never operated.) (d) Unlock the luggage compartment door with the key.*1 *1: The theft deterrent system is temporarily canceled only while the luggage compartment door is open. Approximately 2 seconds after the luggage compartment door is closed, the theft deterrent system is reset. Elapsed time after operation Within about 30 seconds After about 30 seconds Indicator light Lights up Blinks*1 *1: 1 sec. on, 1 sec. off BE253 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM 3. 4. CHECK OF THE THEFT DETERRENT SYSTEM OPERATION. Check if the theft deterrent indicator light is blinking. When any of the following operations (a) or (b) is done, the system sounds the horns and theft deterrent horn and flashes the headlights and taillights for about one minute to alert. At the same time, the system disconnects the starter motor circuit and locks all doors (if all doors are not locked, the system repeats door locking operation every 2 seconds during the one minute alert time). (a) Open the engine hood using the engine hood opener lever. (b) Unlock any of the front or rear doors without key operation. CANCELING OF THE THEFT DETERRENT SYSTEM IN OPERATING CONDITION. The theft deterrent operation can be canceled when any of the following conditions is met: 5. *1: In this case, the theft deterrent system resets in about 2 seconds after if all doors are closed. ECU TERMINAL VALUES MEASUREMENT USING LEXUS BREAKOUTBOX AND LEXUS HANDHELD TESTER. (a) Hook up the LEXUS breakoutbox and LEXUS handheld tester to the vehicle. (b) Read the ECU input/output values by following the prompts on the handheld tester screen. HINT: LEXUS handheld tester has a "Snapshot" function. This records the measured values and is effective in the diagnosis of intermittent problems. Please refer to the LEXUS handheld tester and LEXUS breakoutbox operator's manual for further details. BE254 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM MATRIX CHART OF PROBLEM SYMPTOMS Proceed to the reference page shown in the matrix chart below for each malfunction symptom and troubleshoot for each circuit. HINT: Troubleshooting of the theft deterrent system is based on the premise that the door lock control system is operating normally. Accordingly, before troubleshooting the theft deterrent system, first make certain that the door lock control system is operating normally. Details of Problem The theft deterrent system cannot be set The indicator light does not blink when the system is set When the When the luggage compartment The system system is door is opened by a method does not set other than the key operate When the engine hood is opened Horns do not sound Theft deterrent horn does not sound While the system Headlights do not flash is in warning operation Taillights do not flash The starter cut is not cut off It is not canceled when the ignition key is When the turned to ACC or ON position system is It still operates when the luggage compartment set door is opened with the key System is still set even when a rear door is open Horns sound Theft deterrent horn sounds Even when the system is not set y Headlights stay on Taillights stay on Inspecting Circuit*1 1. Indicator light circuit 2. Luggage compartment door key operated switch circuit 3. Luggage compartment door courtesy switch circuit 4. Door courtesy switch circuit 5. Engine hood courtesy switch circuit Indicator light circuit Luggage compartment door courtesy switch circuit Engine hood courtesy switch circuit Horn relay circuit Theft deterrent horn circuit Headlight control relay circuit Taillight control relay circuit Starter relay circuit Ignition switch circuit See Page BE259 BE273 BE275 BE277 BE279 BE259 BE275 BE279 BE263 BE265 BE267 BE269 BE261 BE271 BE273 BE277 BE263 BE265 BE267 BE269 Luggage compartment door key operated switch circuit Door courtesy switch circuit Horn relay circuit Theft deterrent horn circuit Headlight control relay circuit Taillight control relay circuit *1: If numbers are given to the circuit, proceed with troubleshooting in the order indicated by those numbers. TERMINALS OF ECU No. A9 A8 A7 A6 A5 A4 A3 A2 A1 Symbol ACT+ PRLY ACT ACC +B2 TO IG E Power Source Ignition Switch "ACC" Ignition Switch "ON" Power Main Relay Ground Door Lock Motor Door Lock Motor Luggage Compartment Door Opener Motor Terminal Name BODY ELECTRICAL SYSTEM B24 B25 B23 B22 B21 B19 B20 B18 B17 B16 B14 B15 B13 B12 B10 B11 No. B9 B8 B7 B6 B5 B4 B3 B2 B1 THEFT DETERRENT SYSTEM Symbol DSWH LSWD DSWP KSW DSWD HORN SRLY LSWP HEAD TSW TAIL UL1 IND UL2 UL3 +B1 SH L1 L2 LUG CTY DSWL LSWR Horn Ignition Switch "ST" Taillight Power Source Door Lock Control Switch (Lock) Door Unlock Detection Switch Door Open Detection Switch Key Unlock Warning Switch Luggage Compartment Door Opener Switch Security Indicator Light Theft Deterrent Horn Luggage Compartment Door Key Operated Switch Headlight Terminal Name Door Open Detection Switch Door Open Detection Switch Engine Hood Courtesy Switch Door Unlock Detection Switch Door Unlock Detection Switch Door Lock Control Switch (Unlock) Door Key Lock and Unlock Switch Door Key Lock and Unlock Switch Luggage Compartment Door Courtesy Switch Door Key Lock and Unlock Switch BE255 STRANDARD VALUE OF ECU TERMINAL BE256 B7A4 B6A4 B5A4 B4A4 B3A4 B2A4 A4A8 A6A7 A2A3 B1Ground A9Ground A4Ground A1Ground Terminals +B1Ground +B2Ground EGround DSWDE PRLYIG Symbols DSWLE LSWRE ACT () ACT(+) EACC CTYE UL3E TOE L2E BODY ELECTRICAL SYSTEM Door open detection switch (driver's) OFF (door closed) Door open detection switch (driver's) ON (door opened) Door open detection switch (Rear door) OFF (door closed). Door open detection switch (Rear door) ON (door opened). Door unlock detection switch OFF. (Rear door) Door unlock detection switch ON. (Rear door) Always Always Ignition switch ON. Always Ignition switch OFF. Door key lock and unlock switch OFF or at "lock" position. Door key lock and unlock switch at "unlock" position. Door key lock and unlock switch OFF or at "unlock" position. Door key lock and unlock switch at "lock" position. Luggage compartment door courtesy switch OFF. Luggage compartment door courtesy switch ON. Ignition switch is turned to "ACC" position. Luggage Compartment door opener switch "not pulled". Luggage Compartment door opener switch "Pulled". THEFT DETERRENT SYSTEM Condition 1 MW or higher Below 1 W Below 1 W Below 1 W Below 1 W Below 1 W Below 1 W 1014 V 1014 V 1014 V 1014 V Below 1 W Below 1 V 1014 V 1 MW or higher 1 MW or higher 1 MW or higher 1 MW or higher 1 MW or higher Below 50 W Standard Value B21A4 B20A4 B19A4 B16A4 B15A4 B14A4 B13A4 B12A4 B11A4 B10A4 B9A4 B8A4 Terminals DSWHE DSWPE Symbols LSWDE LSWPE HEADE KSWE TSWE LUGE UL1E UL2E INDE SHE BODY ELECTRICAL SYSTEM Door unlock detection switch OFF. Door unlock detection switch ON (Passenger's). Key unlock warning switch OFF. Indicator light circuit Always Key unlock warning switch ON. (Key is inserted into key cylinder.) Door open detection switch (passenger's) OFF (door closed). Door open detection switch (passenger's) ON (door opened). Door lock control switch OFF or at "lock" position. Door lock control switch at "unlock" position. Door unlock detection switch OFF. (driver's) Door unlock detection switch ON. (driver's) Engine hood courtesy switch OFF. Engine hood courtesy switch ON. Luggage compartment door opener switch OFF. Luggage compartment door opener switch ON. Light control switch at other than "HEAD" position. Luggage compartment door key operated switch OFF. Luggage compartment door key operated switch ON. Door key lock and unlock switch OFF or at "lock" position. Door key lock and unlock switch at "unlock" position. THEFT DETERRENT SYSTEM Condition 1 MW or higher Below 1 W Below 1 W Below 1 W Below 1 W Below 1 W Below 1 W Below 1 W Below 1 W 1014 V 1014 V Below 1 W Below 1 W 1 MW or higher 1 MW or higher 1 MW or higher 1 MW or higher 1 MW or higher 1 MW or higher 1 MW or higher 1 MW or higher Standard Value BE257 B25A4 B24A4 B23A4 B22A4 BE258 Terminals HORNE TAILE L1E Symbols SRLYE BODY ELECTRICAL SYSTEM Ignition switch is turned to ST position. (when neutral start switch "P" position) Horn switch OFF. Light control switch at "TAIL" position. Door lock control switch OFF or at "unlock" position. Door lock control switch at "lock" position. THEFT DETERRENT SYSTEM Condition 1014 V 1014 V 1014 V 1 MW or higher Below 1 W Standard Value BE259 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM CIRCUIT INSPECTION Indicator Light Circuit CIRCUIT DESCRIPTION When the theft deterrent system is preparing to set, this circuit lights up the indicator light. When the system has been set, it countinually turns the indicator light on for 1 second and turns it off for 1 second, thus blinking the indicator light. WIRING DIAGRAM BE260 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM INSPECTION PROCEDURE 1 Check indicator light. P (1) Remove combination meter cluster. (2) Disconnect indicator light connector. Connect positive lead to terminal 1 and negative lead to terminal 4 of indicator light connector. Indicator light comes on. C OK OK NG Replace indicator light. 2 OK Check harness and connector between theft deterrent ECU and indicator light, indicator light and body ground (See page IN29). NG Repair or replace harness or connector. *1: When there is a malfunction that the theft deterrent system cannot be set, proceed to the next numbered circuit inspection shown on matrix chart (See page BE254). Check and replace theft deterrent ECU. *1 BE261 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM Starter Relay Circuit CIRCUIT DESCRIPTION When the theft deterrent system is activated, the contact in the ECU becomes open, creating an open circuit in the ECU is grounded, thus canceling in terminal ST circuit and making the starter inoperative (starter cut). In this condition, if one of the following operations is done, the contact the starter cut: Unlock the front LH or RH door with key. Unlock the doors with the wireless door lock control system. WIRING DIAGRAM BE262 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM INSPECTION PROCEDURE HINT: This troubleshooting is based on the premise that engine cranking occurs. If the engine does not crank, proceed to engine troubleshooting on page EG233 (Vol.1). 1 Check voltage between terminal SRLY of theft deterrent ECU connector and body ground. P (1) (2) (3) (4) Remove the No.1 under cover and heater duct. Remove the J/B No.1 set bolt and clip. Disconnect the theft deterrent ECU connector. Place the transmission in the neutral position. C Measure voltage between terminal SRLY of theft deterrent ECU connector and body ground when ignition switch is turned to ST position. 10 14 V OK Voltage: NG OK Check and replace theft deterrent ECU. Check and repair harness and connector between starter and theft deterrent ECU (See page IN29). BE263 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM Horn Relay Circuit CIRCUIT DESCRIPTION When the theft deterrent system is activated, it causes the Tr in the ECU to switch on and off in approximately 0.2 sec. cycles. This switches the horn relay on and off, thus the horns blow (See the wiring diagram below). In this condition, if any of the following operations is done, the Tr in the ECU goes off and the horn relay switches off, thus stopping the horns blow: Unlock the front LH or RH door with key. Turn the ignition switch to ACC or ON position. Unlock the doors with the wireless door lock control system. Wait for approximately 1 minute. WIRING DIAGRAM BE264 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM INSPECTION PROCEDURE 1 Check voltage between terminal HORN of theft deterrent ECU connector and body ground. P (1) Remove the No.1 under cover and heater duct. (2) Remove the J/B No.1 set bolt and clip. (3) Disconnect the theft deterrent ECU connector. Measure voltage between terminal HORN of theft deterrent ECU connector and body ground. 10 14 V C OK Voltage: NG OK Check and replace theft deterrent ECU. Check and repair harness and connector between theft deterrent ECU and horn relay (See page IN29). BE265 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM Theft Deterrent Horn Circuit CIRCUIT DESCRIPTION When the theft deterrent system is activated, the contact and contact in the ECU close alternately in cycles of approximately 0.2 sec., causing the theft deterrent horn to blow (See the wiring diagram below). In this condition, if any of the following operations is done, the contact in the ECU opens, thus stopping the theft deterrent horn blow: Unlock the front LH or RH door with key. Turn the ignition switch to ACC or ON position. Unlock the doors with the wireless door lock control system. Wait for approximately 1 minute. WIRING DIAGRAM BE266 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM INSPECTION PROCEDURE 1 Check voltage between terminal 1 of theft deterrent horn connector and body ground. P Remove the theft deterrent horn and disconnect the connector. Measure voltage between terminal 1 of theft deterrent horn connector and body ground. 10 14 V C OK Voltage: OK NG Check theft deterrent horn. Check and repair harness and connector between HORN fuse and theft deterrent horn. 2 C Connect positive lead to terminal 1 and negative lead to terminal 2 of theft deterrent horn connector. Theft deterrent horn blows. OK OK NG Replace theft deterrent horn. 3 OK Check harness and connector between theft deterrent ECU and theft deterrent horn (See page IN29). NG Check and repair harness or connector. Check and replace theft deterrent ECU. BE267 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM Headlight Control Relay Circuit CIRCUIT DESCRIPTION When the theft deterrent system is activated, it causes the Tr in the ECU to switch on and off at approximately 0.2 sec. intervals. This switches the headlight control relay on and off, thus flashing the headlights (See the wiring diagram below). In this condition, if any of the following operations is done, the Tr in the ECU goes off and the headlight control relay switches off, thus stopping the headlights flashing: Unlock the front LH or RH door with key. Turn the ignition switch to ACC or ON position. Unlock the doors with the wireless door lock control system. Wait for approximately 1 minute. WIRING DIAGRAM BE268 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM INSPECTION PROCEDURE HINT: The flow chart below is based on the premise that the headlights light up normally whenever the light control switch is operated. If headlight operation is not normal when the light control switch is operated, proceed to troubleshooting on page BE17. 1 Check voltage between terminal HEAD of theft deterrent ECU connector and body ground. P (1) Remove the No.1 under cover and heater duct. (2) Remove the J/B No.1 set bolt and clip. (3) Disconnect the theft deterrent ECU connector. Measure voltage between terminal HEAD of theft deterrent ECU connector and body ground. 10 14 V C OK Voltage: NG OK Check and replace theft deterrent ECU. Check and repair harness and connector between theft deterrent ECU and headlight control relay (See page IN29). BE269 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM Taillight Control Relay Circuit CIRCUIT DESCRIPTION When the theft deterrent system is activated, it causes the Tr in the ECU to switch on and off at approximately 0.2 sec. intervals. This switches the taillight control relay on and off, thus flashing the taillights (See the wiring diagram below). In this condition, if any of the following operations is done, the Tr in the ECU goes off and the taillight control relay switches off, thus stopping the taillights flashing: Unlock the front LH or RH door with key. Turn the ignition switch to ACC or ON position. Unlock the doors with the wireless door lock control system. Wait for approximately 1 minute. WIRING DIAGRAM BE270 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM INSPECTION PROCEDURE 1 Check voltage between terminal TAIL of theft deterrent ECU connector and body ground. P (1) Remove the No.1 under cover and heater duct. (2) Remove the J/B No.1 set bolt and clip. (3) Disconnect the theft deterrent ECU connector. Measure voltage between terminal TAIL of theft deterrent ECU connector and body ground. 10 14 V C OK Voltage: NG OK Check and replace theft deterrent ECU. Check and repair harness and connector between theft deterrent ECU and taillight control relay (See page IN29). BE271 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM Ignition Switch Circuit CIRCUIT DESCRIPTION When the ignition switch is turned to the ACC position, battery positive voltage is applied to the terminal ACC of the ECU. Also, if the ignition switch is turned to the ON position, battery voltage is applied to the terminals ACC and IG of the ECU. When the battery positive voltage is applied to the terminal ACC of the ECU while the theft deterrent system is activated, the warning stops. Furthermore, power supplied from the terminals ACC and IG of the ECU is used as power for the door courtesy switch, position switch, etc. WIRING DIAGRAM BE272 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM INSPECTION PROCEDURE 1 Check CIG and ECUIG fuses. P (1) Remove the No.1 under cover and LH lower pad. (2) Remove CIG and ECUIG fuses from J/B No.1. Check continuity of CIG and ECUIG fuses. C OK Continuity OK NG Check for short in all the harness and components connected to the CIG and ECUIG fuses (See attached wiring diagram). 2 Check voltage between terminals IG and ACC of theft deterrent ECU and body ground. P (1) Remove the No.1 under cover and heater duct. (2) Remove the J/B No.1 set bolt and clip. (3) Disconnect the theft deterrent ECU connectors. (4) Turn ignition switch on. Measure voltage between terminals IG and ACC of theft deterrent ECU connector and body ground. Voltage: 10 14 V C OK NG OK Check and replace theft deterrent ECU. Check and repair harness and connector between theft deterrent ECU and battery (See page IN29). BE273 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM Luggage Compartment Door Key Operated Switch Circuit CIRCUIT DESCRIPTION The luggage compartment door key operated switch goes on when the luggage compartment door key cylinder is turned to the unlock side with the key. WIRING DIAGRAM BE274 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM INSPECTION PROCEDURE 1 Check voltage between terminal 1 of luggage compartment door key operated switch connector and body ground. P (1) Remove luggage compartment door trim. (2) Turn ignition switch ON. C Measure voltage between terminal 1 of luggage compartment door key operated switch connector and body ground when the key is turned to the unlock side and not turned. OK NG OK Check and replace theft deterrent ECU. *1 2 Check luggage compartment door key operated switch. P Disconnect luggage compartment door key operated switch connector. Check continuity between terminals 1 and 2 when the key is turned to the unlock side and not turned. C OK OK NG Repair or replace luggage compartment door key operated switch. 3 OK Check harness and connector between theft deterrent ECU and key operated switch, and key operated switch and body ground (See page IN29). NG Repair or replace harness or connector. *1: When there is a malfunction that the theft deterrent system cannot be set, proceed to the next numbered circuit inspection shown on matrix chart (See page BE254). Check and replace theft deterrent ECU. BE275 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM Luggage Compartment Door Courtesy Switch Circuit CIRCUIT DESCRIPTION The luggage compartment door courtesy switch goes on when the luggage compartment door is opened and goes off when the luggage compartment door is closed. WIRING DIAGRAM BE276 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM INSPECTION PROCEDURE 1 C Check operation of luggage compartment door courtesy light. Check that luggage compartment door courtesy light goes off when luggage compartment door courtesy switch is pushed, and comes on when switch is not pushed. Check and repair luggage compartment door courtesy light circuit (See page BE41). OK NG 2 OK Check for open in harness and connector between theft deterrent ECU and luggage compartment door courtesy switch (See page IN29). NG Repair or replace harness or connectors. *1: When there is a malfunction that the theft deterrent system cannot be set, proceed to the next numbered circuit inspection shown on matrix chart (See page BE254). Check and replace theft deterrent ECU. *1 BE277 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM Door Courtesy Switch Circuit CIRCUIT DESCRIPTION The door courtesy switch goes on when the door is opened and goes off when the door is closed. WIRING DIAGRAM BE278 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM INSPECTION PROCEDURE 1 C Check operation of open door warning light. Check that open door warning light comes on when each door is opened, and goes off when all doors are closed. Check and repair open door warning light circuit. OK NG 2 NG Check for open in harness and connector between theft deterrent ECU and door courtesy switch (See page IN29). OK Check and replace theft deterrent ECU. *1 *1: When there is a malfunction that the theft deterrent system cannot be set, proceed to the next numbered circuit inspection shown on matrix chart (See page BE254). Repair or replace harness or connector. BE279 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM Engine Hood Courtesy Switch Circuit CIRCUIT DESCRIPTION The engine hood courtesy switch is built into the engine hood lock assembly and goes on when the engine hood is opened and goes off when the engine hood is closed. WIRING DIAGRAM BE280 BODY ELECTRICAL SYSTEM THEFT DETERRENT SYSTEM INSPECTION PROCEDURE 1 Check engine hood courtesy switch. P (1) Remove the engine hood lock assembly. (2) Disconnect the engine hood courtesy switch connector. Check continuity between terminals 1 and 2 when engine hood lock is locked and unlocked. C OK OK NG Replace engine hood courtesy switch. 2 OK Check harness and connector between theft deterrent ECU and switch, switch and body ground (See page IN29). NG Repair or replace harness or connector. Check and replace theft deterrent ECU (See page IN34). BE281 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM PARTS LOCATION BE282 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM TRANSMITTER AND RECOGNITION CODE REPLACEMENT CAUTION: Each part is a precise electronic instrument which must be handled carefully. The transmitter and door control receiver are provided as separate supply parts, so the recognition code must be registered when replacing the parts. 1. REPLACEMANT OF TRANSMITTER BATTERY (a) Remove the screw and slide the cover to the rear to remove it. (b) Remove the battery and Oring. (c) Set the new battery and Oring inside the transmitter. HINT: The Oring and battery are supplied as a set. Install the battery with its positive (+) side facing up. (d) When closing the cover, take care that the Oring is not twisted or displaced. (e) Tighten the screw. BE283 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM 2. REGISTRATION OF RECOGNITION CODE Follow the flow chart on the following pages to register the transmitter recognition code with the door control receiver. HINT: If the prescribed conditions are not present while registering the transmitter code, the receiver returns to normal operation. There are 3 modes: add mode, rewrite mode and confirmation mode; the mode to use is decided after the recognition code is registered. Maximum of 4 recognition codes can be registered. REFERENCE: The add mode is used to retain codes already registered while you register new recognition codes. However, if the number of registered codes exceeds 4 codes, previously registered codes are correspondingly erased in order, starting from the first registered code. The rewrite mode is used to erase all previously registered codes before registering new recognition codes. This mode is used when replacing the transmitter or door control receiver. The confirmation mode is for confirming how many recognition codes are already registered before you register additional recognition codes. BE284 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM BE285 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM BE286 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM BE287 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING Perform troubleshooting in accordance with the procedure on the following pages. P. BE288 P. IN34 P. BE289 P. BE291 P. BE295 P. BE297 P. BE298 P. BE299 P. BE300 BE288 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM CUSTOMER PROBLEM ANALYSIS CHECK SHEET WIRELESS DOOR LOCK CONTROL System Check Sheet BE289 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM PRECHECK TYPE I Only Wireless Function (Remote Control) Not Operating (Malfunctions Not Concentrated in Specific Localities) BE290 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM BE291 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM PRECHECK TYPE II Only Wireless Function (Remote control) Not Operating [Malfunction Not Concentrated in Specific Localities] BE292 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM BE293 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM BE294 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM BE295 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM PRECHECK TYPE III Wireless Door Lock Buzzer Does Not Sound BE296 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM BE297 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM TRANSMITTER INSPECTION HINT: Perform this inspection only when transmitter is judged to be faulty in precheck type II. 1 Transmitter battery capacity check. Hint This inspection is not directly for the purpose of checking the capacity of the transmitter battery, but is performed when remote control operation becomes difficult or impossible, in order to ascertain if this is caused by low battery capacity. P (1) Remove the transmitter screw. (2) Remove the cover. (3) Remove the Oring and battery. (1) Connect 2 new 1.5 V drycell batteries in series. Connect the battery terminal to the battery receptacle side terminal, and the battery terminal to the bottom terminal to provide 3 V to the transmitter. (2) In the condition in (1), push the wireless door lock remote control switch on the side of the transmitter body and operate the door lock by remote control. C OK Remote control operation possible NG OK Replace the battery for transmitter (See page BE283). Replace transmitter and registration of recognition codes (See page BE283). BE298 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM ANTENNA CIRCUIT INSPECTION Antenna Circuit CIRCUIT DESCRIPTION The antenna receives the electromagnetic wave emitted by the transmitter and sends it to the wireless door lock ECU. WIRING DIAGRAM BE299 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM MATRIX CHART OF PROBLEM SYMPTOMS The table below will be useful for you in troubleshooting these electrical problems. The most likely causes of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and replace the part when it is found to be faulty. HINT: S Troubleshooting of the wireless door lock control system is based on the premise that the door lock control system is operating normally. Accordingly, before troubleshooting the wireless door lock control system, first make certain that the door lock control system is operating normally. S If the instruction "Proceed to next circuit inspection shown on matrix chart" is given in the flow chart for each circuit, proceed to the circuit with the next highest number in the table to continue the check. S If the trouble still reappears even though there are no abnormalities in any of the other circuits, then check and replace the Wireless Door Lock ECU as the last step. Trouble All functions of wireless door lock control system do not operate. Parts name Only door unlock operation is not possible (Lock operation is possible). Only door lock operation is not possible (Unlock operation is possible). Only transmitter misoperation prevention function is not possible. S S Wireless door lock functions operates even when each door is opened. Automatic lock function operates even if any door is opened within 30 seconds after all doors are unlocked by wireless door lock control system. 1. DOME fuse 2. Wireless Door Lock Main Switch 3. Key Operated Switch 4. Door Courtesy Switch 5. Key Unlock Warning Switch 6. Wireless Door Lock ECU 7. Wire harness 1. Key Operated Switch 2. Wireless Door Lock ECU 3. Wire harness 1. Key Operated Switch 2. Wireless Door Lock ECU 3. Wire harness 1. Key Unlock Warning Switch 2. Wireless Door Lock ECU 3. Wire harness 1. Door Courtesy Switch 2. Wireless Door Lock ECU 3. Wire harness See page BE295 , 301 BE296 BE308 BE312 BE310 IN34 BE308 IN34 BE308 IN34 BE310 IN34 BE312 IN34 Wireless door lock function incorrectly. Although one door is unlocked when the transmitter switch is pressed, all doors unlock. Automatic lock operation is not possible. 1. Door Unlock Detection Switch 2. Wireless Door Lock ECU 3. Wire harness 1. Key Operated Switch 2. Wireless Door Lock ECU 3. Wire harness 1. Door Unlock Detection Switch 2. Wireless Door Lock ECU 3. Wire harness 1. Door Unlock Detection Switch 2. Wireless Door Lock ECU 3. Wire harness BE304 IN34 BE308 IN34 BE304 IN34 BE304 IN34 "Lock, unlock" function performed automati cally does not operate. "Lock, unlock" function performed automati cally operates even when lock operation is continued. BE300 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM CIRCUIT INSPECTION ECU Power Source Circuit CIRCUIT DESCRIPTION Battery positive voltage is applied to terminal +B of the wireless door lock ECU, causing the ECU to operate. WIRING DIAGRAM BE301 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM INSPECTION PROCEDURE 1 Check DOME fuse. P C OK Remove DOME fuse from R/B No.2. Check continuity of DOME fuse. Below 1.0 W or Continuity OK NG Check for short in all the harness and components connected to DOME fuse. (See attached wiring diagram). 2 Check voltage between terminals +B and GND of wireless door lock ECU connector. P (1) Remove the luggage compartment RH side cover. (2) Remove the wireless door lock ECU. Measure voltage between terminals +B and GND of wireless door lock ECU connector. Voltage: 10 14 V C OK NG OK Proceed to next circuit inspection shown on matrix chart (See page BE229). 3 OK Check for open in harness and connector between terminal E of wireless door lock ECU and body ground (See page IN29). NG Repair or replace harness or connector. Check and repair harness and connector between wireless door lock ECU and main switch, main switch and battery. BE302 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM Ignition Switch Circuit CIRCUIT DESCRIPTION When the ignition switch is turned to the ON position, battery positive voltage is applied to the terminals IG of the ECU. Furthermore, power supplied from the terminals IG of the ECU is used as power for the wireless door lock buzzer. WIRING DIAGRAM BE303 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM INSPECTION PROCEDURE 1 Check GAUGE fuses. P (1) Remove the No.1 under cover and LH lower pad. (2) Remove GAUGE fuses from J/B No.1. Check continuity of GAUGE fuses. C OK Continuity OK NG Check for short in all the harness and components connected to the GAUGE fuses (See attached wiring diagram). 2 Check voltage between terminals IG of ECU and body ground. P (1) Disconnect the ECU connector. (2) Turn ignition switch on. Measure voltage between terminals IG of ECU connector and body ground. Voltage: 10 14 V C OK NG OK Check and replace ECU. Check and repair harness and connector between ECU and battery (See page IN29). BE304 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM Door Unlock Detection Switch Circuit CIRCUIT DESCRIPTION The door unlock detection switch is built into the door lock motor assembly. The switch is OFF when the door lock knob is in Lock position, and is ON when the knob is in Unlock position. Furthermore, the door unlock detection switch circuit has terminal +B connected inside the theft deterrent ECU when the door unlock detection switch is OFF, battery positive voltage is applied to the terminal of the door unlock detection switch circuit of the wireless door lock ECU. WIRING DIAGRAM BE305 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM INSPECTION PROCEDURE 1 Check voltage between terminals LSWD, LSWP and LSWR of wireless door lock ECU connector and body ground. P (1) Remove the luggage compartment RH side cover. (2) Remove the wireless door lock ECU. C Measure voltage between terminals LSWD, LSWP and LSWR of wireless door lock ECU connector and body ground when the respective door lock knob involved is pushed to the lock side. 10 14 V OK Voltage: NG OK Proceed to next circuit inspection shown on matrix chart (See page BE299) Check and repair harness and connector between wireless door lock ECU and door unlock detection switch. BE306 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM Key Operated Switch Circuit (Unlock Side) CIRCUIT DESCRIPTION The key operated switch is built into the door key cylinder. When the key is turned to the lock position the lock terminal of the switch is grounded. When the key is turned to the unlock side, the unlock terminal is grounded. Furthermore, the key operated switch circuit has terminal +B connected inside the theft deterrent ECU. When neither the lock or unlock terminal of the key operated switch are grounded, battery voltage is applied to the key operated switch circuit of the wireless door lock ECU. (Coming ON of Tr in the wireless door lock ECU causes the ECU to output a signal to unlock all the doors.) WIRING DIAGRAM BE307 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM INSPECTION PROCEDURE 1 Check voltage between terminal UL of wireless door lock ECU connector and body ground. P (1) Remove the luggage compartment RH side cover. (2) Remove the wireless door lock ECU. Measure voltage between terminal UL of wireless door lock ECU connector and body ground. Voltage: 10 14 V C OK NG OK Proceed to next circuit inspection shown on matrix chart (See page BE299) Check and repair harness and connector between wireless door lock ECU and key operated switch. BE308 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM Key Operated Switch Circuit (Lock Side) CIRCUIT DESCRIPTION Refer to page BE299. Coming ON of Tr in the wireless door lock ECU causes the ECU to output a signal to lock all the doors. WIRING DIAGRAM BE309 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM INSPECTION PROCEDURE 1 Check voltage between terminal LOCK of wireless door lock ECU connector and body ground. P (1) Remove the luggage compartment RH side cover. (2) Remove the wireless door lock ECU. Measure voltage between terminal L of wireless door lock ECU connector and body ground. Voltage: 10 14 V C OK NG OK Proceed to next circuit inspection shown on matrix chart (See page BE299) Check and repair harness and connector between wireless door lock ECU and key operated switch. BE310 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM Key Unlock Warning Switch Circuit CIRCUIT DESCRIPTION When the key is inserted in the ignition key cylinder, the key unlock warning switch comes ON. When the key is not inserted, the switch is OFF. When the key unlock warning switch is ON, the ECU operates the transmitter misoperation prevention function. WIRING DIAGRAM BE311 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM INSPECTION PROCEDURE 1 Check voltage between terminal KSW of wireless door lock ECU connector and body ground. P (1) Remove the luggage compartment RH side cover. (2) Remove the wireless door lock ECU. Measure voltage between terminal KSW of wireless door lock ECU connector and body ground when key plate is not inserted in the ignition key cylinder. Voltage: 10 14 V C OK NG OK Proceed to next circuit inspection shown on matrix chart (See page BE299) Check and repair harness and connector between wireless door lock ECU and key unlock warning switch. BE312 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM Door Courtesy Switch Circuit CIRCUIT DESCRIPTION The door courtesy switch comes ON when the door is opened, and goes OFF when the door is closed. Furthermore, the door courtesy switch circuit has terminal +B connected inside the theft deterrent ECU. Battery positive voltage is applied to terminal DSWD of the wireless door lock ECU when all doors are closed, i.e., when the door courtesy switch of all doors are OFF. WIRING DIAGRAM BE313 BODY ELECTRICAL SYSTEM WIRELESS DOOR LOCK CONTROL SYSTEM INSPECTION PROCEDURE 1 C Check operation of open door warning light. Check that open door warning light comes on when each door is opened, and goes off when all doors are closed. Check open door warning light circuit. OK NG 2 Check voltage between terminal DSWD of wireless door lock ECU connector and body ground. P (1) Remove the luggage compartment RH side cover. (2) Remove the wireless door lock ECU. Measure voltage between terminal DSWD of wireless door lock ECU connector and body ground when all doors are closed. 10 14 V C OK Voltage: NG OK Proceed to next circuit inspection shown on matrix chart (See page BE299). Check and repair harness and connector between wireless door lock ECU and door courtesy switch. BE314 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM CRUISE CONTROL SYSTEM PARTS LOCATION BE315 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING Perform troubleshooting in accordance with the procedure on the following pages. P. BE316 P. BE317 BE318 P. IN23 P. BE317 BE318 P. BE319 P. BE321 P. BE323 BE354 CUSTOMER PROBLEM ANALYSIS BE316 Vehicle Speed when Problem Occured Date Problem First Occurred How Often does Problem Occur? Date of Vehicle Brought In Customer's Name Diagnostic Trouble Code Check Symptoms CRUISE CONTROL Check Sheet 1st Time 2nd Time V Switch malfunction V Faulty CRUISE MAIN indicator Light V Auto cancel occurs / / V Cruise control malfunction V Cancel does not occur BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM V Normal Code V Normal Code V Remains ON S Driving condition V City driving V Freeway V Up hill V Down hill S After cancel occurred, did the driver activate cruise control again? V Yes V No V With brake ON V With parking brake ON V Except N position shift V At 40 km/h (25 mph) or less V When control SW turns to CANCEL position V Slip to acceleration side V Slip to deceleration side V Hunting occurs V O/D cut off does not occur V O/D does not return V SET V ACCEL V COAST V RESUME V CANCEL / / V Continuous V Intermittent ( Times a day) km/h mph Odometer Reading Registration No. Registration Year Frame No. V Malfunction Code (Code V Malfunction Code (Code V Does not light up Inspector's Name: / V Blinking / ) ) km Miles BE317 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM DIAGNOSIS SYSTEM INDICATOR CHECK 1. 2. Turn the ignition switch to ON. Check that the CRUISE MAIN indicator light comes on when the cruise control main switch is turned ON, and that the indicator light goes off when the main switch is turned OFF. HINT: If the indicator check result is not normal, proceed to troubleshooting (See page BE76) for the combination meter section. DIAGNOSTIC TROUBLE CODE CHECK HINT: If a malfunction occurs in the vehicle speed sensors, actuator, etc. during cruise control driving, the ECU actuates AUTO CANCEL of the cruise control and blinks the CRUISE MAIN indicator light 5 times to inform the driver of a malfunction. At the same time, the malfunction is stored in memory as a diagnostic trouble code. OUTPUT OF DIAGNOSTIC TROUBLE CODE Using diagnosis check wire: 1. Turn the ignition switch ON. 2. Using a SST, connect terminals Tc and E1 of DLC2. SST 0984318020 3. Read the diagnostic trouble code on the CRUISE MAIN indicator light. HINT: If the diagnostic trouble code is not output, inspect the diagnosis circuit (See page BE353). As an example, the blinking patterns for normal codes 11 and 21 are shown in the illustration. Check for the problem using the diagnostic trouble code table on the next page. After completing the check, disconnect terminals Tc and E1, and turn off the display. 4. 5. BE318 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM Using LEXUS handheld tester: (a) Hook up the LEXUS handheld tester to the DLC2. (b) Read the diagnostic trouble codes by following the prompts on the LEXUS handheld tester screen. HINT: Please refer to the LEXUS handheld tester operator's manual for further details. DIAGNOSTIC TROUBLE CODE HINT: When 2 or more codes are indicated, the lowest numbered code will be displayed first. (*) When the vehicle speed is reduced on uphill roads, the speed can be set again and driving continued. (This is not a malfunction.) Diagnostic Trouble Code Clearance 1. After completing repairs, the diagnostic trouble code retained in memory can be cleared by removing the ECUB fuse for 10 seconds or more with the ignition switch off. 2. (Check that the normal code is displayed after connecting the fuse) BE319 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE CHART If a malfunction code is displayed during the diagnostic trouble code check, check the circuit listed for that code in the table below and proceed to the appropriate page. DTC 11 12 13 21 23 Circuit Inspection Page S S S S S S S S S Actuator Motor Circuit BE323 BE325 BE323 BE327 BE329 BE329 BE323 BE332 Actuator Magnetic Clutch Circuit Actuator Motor Circuit Actuator Position Sensor Circuit Speed Sensor Circuit Speed Sensor Circuit Actuator Control Cable Cruise control ECU 32, 34 41 Control Switch Circuit (Cruise Control Switch) HINT: 1. If the instruction "Proceed to next circuit inspection shown on matrix chart" is given in the flow chart for each circuit, proceed to the circuit with the next highest number in the table to continue check. 2. If the trouble still reappears even though there are no abnormalities in any of the other circuits, then check or replace the cruise control ECU as the last step. BE320 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM INPUT SIGNAL CHECK Output Code 1. (a) For check No. 1 ~ No. 2 Turn the ignition switch ON. (b) For check No.3 ~ No.4 Jack up the vehicle. Start the engine. 2. Turn the control switch to SET/COAST position and hold it down . 3. Push the main switch ON . 4. Check that the CRUISE MAIN indicator light blinks twice repeatedly. 5. Turn the SET/COAST switch OFF. 6. Operate each switch as listed in the table below. 7. Read the blinking pattern of the CRUISE MAIN indicator light. 8. After doing the check, turn the main switch off. HINT: When 2 or more signals are input to the ECU, the lowestnumbered code is displayed first. ECU TERMINAL VALUES MEASUREMENT USING LEXUS BREAKOUTBOX AND LEXUS HANDHELD TESTER 1. 2. Hook up the LEXUS breakoutbox and LEXUS handheld tester to the vehicle. Read the ECU input/ output values by following the prompts on the scan tool screen. HINT: LEXUS handheld tester has a "Snapshot" function. This records the measured values and is effective in the diagnosis of interminent problems. Please refer to the LEXUS handheld tester/LEXUS breakoutbox operator's manual for further details. BE321 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM MATRIX CHART OF PROBLEM SYMPTOMS If a normal code is displayed during the diagnostic trouble code check but the trouble still occurs (reappears), perform troubleshooting for each problem symptom, checking the circuits for each symptom in the order given in the table below. Proceed to the page indicated for each circuit. BE329 BE323 BE325 BE327 BE332 BE335 BE337 BE339 BE322 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM HINT: 1. If the instruction "Proceed to next circuit inspection shown on matrix chart" is given in the flow chart for each circuit, proceed to the circuit with the next highest number in the table to continue the check. 2. If the trouble still reappears even though there are no abnormalities in any of the other circuits, then check or replace the cruise control ECU as the last step. BE342 BE344 BE346 BE349 BE351 IN34 BE323 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM CIRCUIT INSPECTION DTC 11, 13 Actuator CIRCUIT DESCRIPTION The actuator motor is operated by signals from the ECU. Acceleration and deceleration signals are transmitted by changes in the Duty Ratio (See note below). Duty Ratio The duty ratio is the ratio of the period of continuity in one cycle. For example, if A is the period of continuity in one cycle, and B is the period of noncontinuity, then Code No. 11 13 Diagnosis S Duty ratio of 100 % output to motor acceleration side S Overcurrent (short) in motor circuit S Open in actuator motor circuit Trouble Area S Cruise control actuator motor S Harness or connector between actuator motor and ECU S ECU WIRING DIAGRAM BE324 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM 1 Check actuator motor. P 1. 2. 1. Remove cruise control actuator. Disconnect actuator connector. Connect positive lead to terminal 5 and negative lead to terminal 4 of actuator connector. (Safety magnetic clutch ON) NOTICE: Do not connect the high tension cables to the wrong battery terminal. You will damage the cruise control actuator. When battery positive voltage is applied to each of the actuator connector terminals, check that the control plate moves smoothly without interruption. C 2. 3. With the motor rotating as in 2., check that the motor is stopped by limit switches when the control plate moves to fully opened or fully closed position. OK NG Replace actuator assembly. 2 OK Check harness and connector between cruise control ECU and actuator motor. (See page IN29). NG Repair or replace harness or connector. Proceed to next circuit inspection shown on matrix chart (See page BE321 or BE322). However, when diag. trouble code 11, 13 is displayed, check and replace cruise control ECU. BE325 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM DTC 12 Actuator Magnetic Clutch Circuit. CIRCUIT DESCRIPTION This circuit turns on the magnetic clutch inside the actuator during cruise control operation according to the signal from the ECU. If a malfunction occurs in the actuator or speed sensor, etc. during cruise control, the rotor shaft between the motor and control plate is released. When the brake pedal is depressed, the stoplight switch turns on, supplying electrical power to the stoplight. Power supply to the magnetic clutch is mechanically cut and the magnetic clutch is turned OFF. When driving downhill, if the vehicle speed exceeds the set speed by 15 km/h (9 mph), the ECU turns the magnetic clutch OFF. If the vehicle speed later drops to within 10 km/h (6 mph) above the set speed, then cruise control at the set speed is resumed. Code No. Diagnosis S Overcurrent (short) in magnetic clutch circuit S Open (0.8 sec) in magnetic clutch circuit Trouble Area S Cruise control magnetic clutch S Harness or connector between ECU and magnetic clutch, magnetic clutch and body ground S ECU 12 WIRING DIAGRAM BE326 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM INSPECTION PROCEDURE 1 Check actuator magnetic clutch. P 1. 2. Remove cruise control actuator. Disconnect actuator connector. C Move the control plate by hand. OK Control plate moves. (Magnetic clutch off) C 1. 2. Connect positive lead to terminal 5 and negative lead to terminal 4 of actuator connector. Move the control plate by hand. NOTICE: Do not connect the high tension cables to the wrong battery terminal. You will damage the cruise control actuator. OK Control plate does not move. (Magnetic clutch on) OK NG Check stop light switch. Replace actuator assembly. 2 P C OK Disconnect stop light switch connector. Check continuity between terminals. OK NG Replace stop light switch. 3 OK Check for open or short in harness and connectors between ECU and stop light switch, stop light switch and magnetic clutch, magnetic clutch and body ground. (See page IN29). NG Repair or replace harness or connector. Proceed to next circuit inspection shown on matrix chart (See page BE322). However, when diag. code 12 is displayed, check harness and connector for loose connection. If connection is normal, check and replace ECU. BE327 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM DTC 13 Actuator Position Sensor Circuit CIRCUIT DESCRIPTION This circuit detects the rotation position of the actuator control plate and sends signal to the ECU. Code No. Diagnosis S Position sensor detects abnormal voltage. 13 S Position sensor signal value does not change when the motor operates. Trouble Area S Cruise control actuator position sensor S Harness or connector between actuator position sensor and body ground S ECU WIRING DIAGRAM BE328 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM INSPECTION PROCEDURE 1 Check voltage between terminals VR2 and VR3 of ECU connector. P C Remove ECU with connectors still connected. (1) Turn ignition switch on. (2) Measure voltage between terminals VR2 and VR3 of ECU connector while turning control plate slowly by hand from the deceleration side to the acceleration side. OK Voltage: Fully closed: approx. 1.3 V Fully opened: approx. 4.1 V As the control plate is turned, the voltage should increase gradually without interruption. Proceed to next circuit inspection shown on matrix chart (See page BE322). NG OK 2 Check actuator position sensor. P (1) Remove cruise control actuator. (2) Disconnect the actuator connector. Measure resistance between actuator terminals 1 and 3 of actuator connector. C OK Resistance: Approx. 2 kW C Measure resistance between terminals 2 and 3 of actuator connector while turning the control plate slowly by hand from the deceleration side to the acceleration side. OK Resistance: Fully closed: Approx. 530 W Fully opened: Approx. 2 kW As the control plate turns, the resistance should increase gradually without interruption. OK NG Replace actuator assembly. 3 OK Check for open or short in harness and connector between ECU and actuator position sensor (See page IN29). NG Repair or replace harness or connector. Check harness and connector for loose connection. If connection is normal, check and replace ECU. BE329 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM DTC 21, 23 Vehicle Speed Sensor Circuit The vehicle speed sensor signal is sent to cruise control ECU as a vehicle speed signal. The rotor shaft is rotated by the gear of the transmission. For each rotation of the shaft, the vehicle speed sensor sends a 4pulse signal to the combination meter. This signal is converted inside the combination meter and sent as a 4pulse signal to the cruise control ECU. The ECU calculates the vehicle speed from this pulse frequency. CIRCUIT DESCRIPTION Code No. Diagnosis Trouble Area S Vehicle speed sensor S Combination meter S Harness or connector between vehicle speed sensor and combination meter, and combination meter and ECU S ECU S Actuator 21 Speed signal is not input to the ECU while cruise control is set. Vehicle speed decreases 16 km/h or more than the preset speed. 23 HINT: When speed sensor circuit is opened intermittently (Below 0.1 sec), code 23 is output. S Vehicle speed sensor S Harness or connector in OD and SPD circuit (Open or short intermittently) S ECU BE330 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM WIRING DIAGRAM BE331 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM 1 Input signal check. C (1) See input signal check on page BE320. (2) Check indicator light operation when driving with vehicle speed above 40 km/h (25 mph), and with vehicle speed below 40 km/h (25 mph). OK Vehicle speed above 40 km/h (25 mph): Indicator light blinks Vehicle speed below 40 km/h (25 mph): Indicator light stays on NG OK Proceed to next circuit inspection shown on matrix chart (See page BE321). 2 OK Check speedometer circuit (See combination meter troubleshooting on page BE75). NG Repair or replace speed sensor, harness, connector or combination meter assembly. Check harness and connector for loose connection. If connection is normal, check and replace ECU. BE332 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM DTC 32, 34 Control Switch Circuit (Cruise Control Switch) CIRCUIT DESCRIPTION This circuit carries the SET/COAST, RESUME/ACCEL and CANCEL signals (same voltage) to the ECU. Code No. 32 34 Diagnosis Short in control switch circuit. More than 2 of CANCEL, SET/COAST and RESUME/ACCEL signals are input simultaneously. Trouble Area S Cruise control switch S Harness or connector between control switch and ECU S ECU WIRING DIAGRAM BE333 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM 1 Input signal check. P (1) See input signal check on page BE320. (2) Check the indicator light operation when each of the SET/COAST, RESUME/ACCEL and CANCEL is turned ON. OK SET/COAST, RESUME/ACCEL Switch The signals shown in the table on the left should be output when each switch is turned ON. The signal should disappear when the switch is turned OFF. CANCEL Switch The indicator light goes off when the cancel switch is turned ON. NG OK Proceed to next circuit inspection shown on matrix chart (See page BE321). 2 Check voltage between terminal CCS of ECU connector and body ground. P C Remove ECU with connectors still connected. (1) Turn ignition switch ON. (2) Measure voltage between terminal CCS of ECU connector and body ground when each of the SET/COAST, RESUME/ACCEL and CANCEL is turned ON. OK NG OK Proceed to next circuit inspection shown on matrix chart (See page BE321). BE334 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM 3 Check control switch. P 1. 2. Remove steering wheel center pad. Disconnect control switch connector (See page SR12). C OK Measure resistance between terminals 3 and 4 of control switch connector when control switch is operated. Hint When diagnostic trouble code 34 is displayed, carefully check that resistance is always R in neutral position, particularly when switching between RES/ACC and SET/COAST. OK NG Replace cruise control switch. 4 OK Check for open and short in harness and connector between ECU and control switch (See page IN29). NG Repair or replace harness or connector. Check and replace ECU. BE335 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM Stop Light Switch Circuit CIRCUIT DESCRIPTION When the brake is on, battery voltage normally applies through the stop fuse and stop light switch to terminal STP of the ECU, and the ECU turns the cruise controll off. A failsafe function is provided so that cancel functions normally, even if there is a malfunction in the stop light signal circuit. If the harness connected to terminal STP has an open, terminal STP will have battery positive voltage and the cruise control will be turned off. Also, SET will not occur. If the STOP fuse is open, terminal STP + becomes approx. 0 V when the brake switch is turned on so that the ECU performs cancel function normally. Also, when the brake switch is on, the magnetic clutch is cut electrically by the stop light switch, turning the cruise control off (See page BE325 for operation of the magnetic clutch). WIRING DIAGRAM BE336 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM INSPECTION PROCEDURE 1 C Check operation of stop light. Check that stop light comes on when brake pedal is depressed, and turns off when brake pedal is released. Check stop light circuit. OK NG Input signal check. 2 C (1) See input signal check on page BE320. (2) Check the indicator light when the brake pedal is depressed. The indicator light goes off when the brake pedal is depressed. OK NG OK Proceed to next circuit inspection shown on matrix chart (See page BE321). 3 Check voltage between terminal STP+, STP of ECU connector and body ground. P C Remove ECU with connectors still connected. (1) Turn ignition switch ON. (2) Measure voltage between terminal STP+ and STP of ECU connector and body ground when the brake pedal is depressed and released. OK NG OK Proceed to next circuit inspection shown on matrix chart (See page BE321). 4 OK Check for open in harness and connectors between terminal STP+ of ECU and stop light switch, and terminal STP of ECU and stop light switch (See page IN29). NG Repair or replace harness or connector. Check and replace ECU. BE337 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM Idle Switch Circuit CIRCUIT DESCRIPTION When the idle switch is turned ON, a signal is sent to the ECU. The ECU uses this signal to correct the discrepancy between the throttle valve position and the actuator position sensor value to enable accurate cruise control at the set speed. If the idle switch is malfunctioning, problem symptoms also occur in the engine, so also inspect the engine. WIRING DIAGRAM BE338 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM INSPECTION PROCEDURE 1 Check voltage between terminal IDL of ECU connector and body ground. P (1) Remove cruise control ECU with connectors still connected. (2) Disconnect ECM and ABS & TRAC ECU connector. (1) Turn ignition switch ON. (2) Measure voltage between terminal IDL of ECU connector and body ground when the throttle valve is fully closed and fully opened. C OK NG OK Check throttle position sensor. Proceed to next circuit inspection shown on matrix chart (See page BE321). 2 P C Disconnect throttle position sensor connector. Measure resistance between terminals 1 and 2 of throttle position sensor connector when the throttle valve is fully closed and fully opened. OK OK NG Replace throttle position sensor. 3 OK Check for open and short in harness and connector between ECU and throttle position sensor, and throttle position sensor and body ground (See page IN29). NG Repair or replace harness or connector. Check and replace ECU. BE339 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM Electronically Controlled Transmission Communication Circuit CIRCUIT DESCRIPTION When driving uphill under cruise control, in order to reduce shifting due to ONOFF overdrive operation and to provide smooth driving when down shifting in the electronically controlled transmission occurs, a signal to prevent upshift until the end of the uphill slope is sent from the cruise control ECU to the electronically controlled transmission. Terminal ECM of the cruise control ECU detects the shift change signal (output to electronically controlled transmission No. 2 solenoid) from the electronically controlled transmission. If vehicle speed is reduced, or when terminal ECT of the cruise control ECU receives a down shifting signal, it sends signal from terminal OD to ECM to cut overdrive until the end of the uphill slope, and the gear shifts are reduced and gear shift points in the electronically controlled transmission are changed. WIRING DIAGRAM BE340 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM INSPECTION PROCEDURE 1 P C Check operation of overdrive. Test drive after engine warm up. Check that overdrive ON OFF occurs with operation of O/D switch ONOFF. OK NG Check and Repair Electronic controlled transmission (See AT section). 2 Check voltage between terminal OD of harness side connector of ECU and body ground. P C Remove ECU with connector still connected. (1) Disconnect ECU connector. (2) Turn ignition switch ON. (3) Measure voltage between terminal OD of harness side connector of ECU and body ground. Voltage: 46V OK OK Go to step 3. NG Go to step 5. BE341 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM 3 Check voltage between terminal ECT of ECU connector and body ground (On test drive). P (1) Connect ECU connector. (2) Test drive after engine warm up. Check voltage between terminal ECT of ECU connector and body ground when OD switch is on and off. C OK NG OK Proceed to next circuit inspection shown on matrix chart (See page BE321). 4 OK Check for open and short in harness and connector between terminal ECT of ECU and electronic controlled transmission solenoid (See page IN29). NG Repair or replace harness or connector. Check and repair ECU. 5 OK Check for open and short in harness and connector between terminal OD of ECU and terminal OD1 of ECM (See page IN29). NG Repair or replace harness or connector. Check and replace ECM. BE342 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM Parking Brake Switch Circuit CIRCUIT DESCRIPTION When the parking brake pedal is depressed, the parking brake switch sends a signal to the ECU. When this signal is input to the ECU during cruise control driving, the ECU cancels cruise control. WIRING DIAGRAM BE343 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM 1 C Check operation of brake warning light. Check that the brake warning light in the instrument panel comes on when the parking brake pedal is depressed with the engine running, and the light goes off when the parking brake pedal is released. Check brake warning light circuit (See page BE68). OK NG Check input signal. 2 C 1. 2. See input signal check on page BE320. Check the indicator light when the parking brake pedal is depressed. OK The indicator light goes off when the parking brake lever is pulled up. NG OK Proceed to next circuit inspection shown on matrix chart (See page BE322). 3 Check voltage between terminal PKB of cruise control ECU connector and body ground. P Remove cruise control ECU with connectors still connected. 1. 2. Turn ignition switch ON. Measure voltage between terminal PKB of cruise control ECU connector and body ground when the parking brake lever is pulled up and released. C OK NG OK Proceed to next circuit inspection shown on matrix chart (See page BE322). 4 OK Check for open in harness and connector between cruise control ECU and brake warning light. NG Repair or replace harness or connector. Check and replace cruise control ECU. BE344 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM Park/Neutral Position Switch Circuit CIRCUIT DESCRIPTION When the shift position is put in P or N, a signal is sent from the park/neutral position switch to the ECU. When this signal is input during cruise control driving, the ECU cancels the cruise control. WIRING DIAGRAM BE345 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM INSPECTION PROCEDURE 1 C Check operation of starter. Check that the starter operates normally and that the engine starts. OK NG Check input signal. Proceed to engine troubleshooting (See page EG233). 2 P (1) See input signal check on page BE320. (2) Check the indicator light when shifting into P position or N position. The indicator light goes off when shifting into P position or N position OK NG OK Proceed to next circuit inspection shown on matrix chart (See page BE322). 3 Check voltage between terminal N & C of ECU connector and body ground. P C Remove ECU with connectors still connected. (1) Turn ignition switch ON. (2) Measure voltage between terminal N & C of ECU connector and body ground when shifting into P, N position and other positions. OK NG OK Proceed to next circuit inspection shown on matrix chart (See page BE322). 4 OK Check for open in harness and connector between ECU and Ignition SW (See page IN29). NG Repair or replace harness or connector. Check and replace ECU. BE346 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM ECU Power Source Circuit CIRCUIT DESCRIPTION The ECU power source supplies power to the actuator, sensors, etc. Terminal GND and the cruise control ECU case are grounded. WIRING DIAGRAM BE347 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM INSPECTION PROCEDURE 1 Check ECUIG fuse. P C OK Remove ECUIG fuse from J/B No.1. Check continuity of ECUIG fuse. Continuity OK NG Check for short in all the harness and components connected to the ECUIG fuse (See attached wiring diagram). 2 Check voltage between terminals +B and GND of ECU connector. P C Remove ECU with connectors still connected. (1) Turn ignition switch ON. (2) Measure voltage between terminals +B and GND of ECU connector. Voltage: 10 14 V OK NG Go to step 3. OK Proceed to next circuit inspection shown on matrix chart (See page BE321). BE348 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM 3 Check continuity between terminal GND of ECU connector and body ground. C Measure resistance between terminal GND of cruise control ECU connector and body ground. Resistance: 1 W or less OK OK NG Repair or replace harness or connector. Check and repair harness and connector between battery and ECU. BE349 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM Back up Power Source Circuit CIRCUIT DESCRIPTION The ECU backup power source provides power even when the ignition switch is OFF, and is used for diagnostic code memory, etc. WIRING DIAGRAM BE350 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM INSPECTION PROCEDURE 1 Check ECUB fuse. P C Remove ECUB fuse from R/B No.2. Check continuity of ECUB fuse. OK Continuity OK NG Check for short in all the harness and components connected to the ECUB fuse (See attached wiring diagram). 2 Check voltage between terminal BATT of ECU connector and body ground. P C Remove ECU with connectors still connected. Measure voltage between terminal BATT of ECU connector and body ground. 10 14 V OK Voltage: NG OK Proceed to next circuit inspection shown on matrix chart (See page BE322). Check and repair harness and connector between battery and ECU. BE351 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM Main Switch Circuit (Cruise Control Switch) CIRCUIT DESCRIPTION When the cruise control main switch is turned off, the cruise control does not operate. WIRING DIAGRAM BE352 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM 1 Check voltage between terminal CMS and GND of cruise control ECU connector. P Remove cruise control ECU with connectors still connected. 1. 2. Turn ignition switch ON. Measure voltage between terminals CMS and GND of cruise control ECU connector when main switch is hold ON and OFF. C OK NG OK Check main switch. Proceed to next circuit inspection shown on matrix chart (See page BE322). 2 P 1. 2. Remove steering wheel center pad (See page SR14). Disconnect cruise control switch connector. C Check continuity between terminals 3 and 5 of cruise control switch connector when main switch is hold on and off. OK OK NG Replace control switch. 3 OK Check harness and connector between cruise control ECU and main switch, and body ground (See page IN29). NG Repair or replace harness or connector. Check and replace cruise control ECU. BE353 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM Tc Circuit CIRCUIT DESCRIPTION This circuit sends a signal to the ECU that diagnostic trouble code output is required. WIRING DIAGRAM BE354 BODY ELECTRICAL SYSTEM CRUISE CONTROL SYSTEM INSPECTION PROCEDURE 1 Check voltage between terminals Tc and E1 of DLC2. C (1) Turn ignition switch ON. (2) Measure voltage between terminals Tc and E1 of DLC2. Voltage: 10 14 V OK NG OK Proceed to next circuit inspection shown on matrix chart (See page BE322). 2 OK Check for open and short in harness and connector between ECU and DLC2, DLC2 and body ground (See page IN29). NG Repair or replace harness or connector. Check and replace ECU. SERVICE DATA SERVICE SPECIFICATIONS TURN SIGNAL FLASHER Flashes / Minute SPEEDOMETER (USING A SPEEDOMETER TESTER) Standard indication (km/h) 20 40 60 80 100 120 Standard indication (mph) 20 40 60 80 100 120 140 160 TACHOMETER (ONVEHICLE) Standard indication (rpm) 700 1000 2000 3000 4000 5000 6000 7000 FUEL RECEIVER GAUGE AB AC BC FUEL SENDER GAUGE Float position: F (Approx. 5.3 mm 0.21 in.) Float position: 1 / 2 (Approx. 120.9 mm 4.76 in.) Float position: E (Approx. 244.7 mm 9.63 in.) ENGINE COOLANT TEMPERATURE RECEIVER GAUGE AB AC BC ENGINE COOLANT TEMPERATURE SENDER GAUGE Temperature 50C 122F 120C 248F CRUISE CONTROL MAIN SWITCH 34 (Switch position: Neutral) BODY ELECTRICAL SYSTEM SERVICE SPECIFICATIONS Allowable range (km/h) 1824 3844 5866 7888 98110 118132 Allowable range (mph) 1724 3846 57.567 7788 96109 115130 134151.5 153173 DC 13.5 V 25C (77F) Allowable range (rpm) 630770 9001100 18502150 28003200 38004200 48005200 57506250 67007300 Approx. 175.0 W Approx. 54.0 W Approx. 229.7 W Approx. 107.2 W Approx. 261.5 W Approx. 154.3 W Approx. 3.0 W Approx. 30.8 W Approx. 110 W 1MW or higher 160 ~ 240 17.1 ~ 21.2 60120 BE355 BE02W07 BE356 34 (Switch position: RESUME / ACCEL) 34 (Switch position: SET / COAST) 34 (Switch position: CANCEL) CRUISE CONTROL ACTUATOR 13 23 BODY ELECTRICAL SYSTEM SERVICE SPECIFICATIONS Approx. 2.2 kW Fully closed: Approx. 260 W Fully opened : Approx. 2.2 kW 6080 W 180220 W 400440 W ...
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This note was uploaded on 05/03/2010 for the course BUSINESS econ203 taught by Professor Shivaggo during the Spring '10 term at Columbia College.

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