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DTC No.DTC Detection ConditionTrouble Area61Conditions (1) and (2) is detected:(1) ECM communication is normal, malfunction informationof engine system ON, and engine speed is 500 rpm ormore continues for 0.48 sec. or more, and TRAC operation start condition is concluded.(2) ECM communication is normal, malfunction informationof engine system is ON, engine speed is 500 rpm andmore continues for 1 sec. or more, and the engine system memorizes DTC.Engine control systemINSPECTION PROCEDURE1Check the DTC for the engine (See page DI–3).*1Repair engine control system according to thecode output.*2Check for ECU connected to malfunction indicator light.*1: Output NG code*2: Malfunction indicator light remains ON.DI0CE–01
DI–308–DIAGNOSTICSABS & TRACTION CONTROL SYSTEM460AuthorĂ:DateĂ:1997 LEXUS ES300 (RM511U)DTCAlways ONABS & TRAC ECU MalfunctionCIRCUIT DESCRIPTIONDTC No.DTC Detecting ConditionTrouble AreaAlways ONABS & TRAC ECU internal malfunction is detected.DECUFail safe function: If trouble occurs in the power source circuit, the ECU cuts off current to the ABS & TRACsolenoid relay and prohibits ABS control and TRAC control.INSPECTION PROCEDURE1Is DTC output?Check DTC on page DI–273.YESRepair circuit indicated by the code output.NO2Is normal code displayed?YESCheck ABS & TRAC solenoid relay. Check forshort in harness and connector between sole-noid relay and DLC1 (See page IN–27).NO3Is ABS warning light go off?YESCheck for open or short in harness and connec-tor between ECU–IG fuse and ABS & TRAC ECU(See page IN–27).NODI0CG–01
–DIAGNOSTICSABS & TRACTION CONTROL SYSTEMDI–309461AuthorĂ:DateĂ:1997 LEXUS ES300 (RM511U)4Check battery positive voltage.PREPARATION:Start the engine.CHECK:Check the battery positive voltage.OK:10 – 14 VNGCheck and repair the charging system.OK5Check ABS warning light.PREPARATION:(a)Turn the ignition switch OFF.(b)Disconnect the connector from the ABS & TRAC ECU.(c)Turn the ignition switch ON.CHECK:Check the ABS warning light goes off.OKCheck and replace ABS & TRAC ECU.NGCheck for short in harness and connector between ABS warning light, DLC1, DLC2, and ABS &TRAC ECU (See page IN–27).
F00092BatteryABS & TRAC Solenoid RelayEngine Room R/B No. 33ABS & TRAC ECUA71R–LC54IJ1IM26J/CC10W–BEBEA7ABS Warning Light812IK3G–B23222ABS & TRAC ActuatorDLC1Short PinWAJ3033333W–BW–B4ABS & TRAC ECUR–L4R–LIK35G–BCCG–BG–BC103ABS & TRAC ECUR–LR–LJ/CD1DGAUGEInstrument Panel J/BA20J4DG–B4W–L2DI–310–DIAGNOSTICSABS & TRACTION CONTROL SYSTEM462AuthorĂ:DateĂ:1997 LEXUS ES300 (RM511U)ABS Warning Light CircuitCIRCUIT DESCRIPTIONIf the ECU detects trouble, it lights the ABS warning light while at the same time prohibiting ABS control. Atthis time, the ECU records a DTC in memory.Connect terminals Tc and E1of the DLC1 or DLC2 make the ABS warning light blink and output the DTC.