HINT Troubleshooting of the theft deterrent system is based on the premise that

Hint troubleshooting of the theft deterrent system is

This preview shows page 404 - 410 out of 584 pages.

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.
Image of page 404
DI01V–01 N22059 A/C Control Assembly Theft Deterrent ECU IND T4 10 R–Y IJ1 4 R–Y A14 5 N22046 2 1 DI–406 DIAGNOSTICS THEFT DETERRENT SYSTEM 558 AuthorĂ: DateĂ: 1997 LEXUS ES300 (RM511U) 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 continually turns the indicator light on for 1 second and turns it off for 1 second, thus blinking the indicator light. WIRING DIAGRAM INSPECTION PROCEDURE 1 Check indicator light. PREPARATION: (a) Remove A/C control assembly. (b) Disconnect indicator light connector. CHECK: Connect the positive (+) lead to terminal 1 and the negative (–) lead to terminal 2 of indicator light connector. OK: Indicator light comes on. NG Replace indicator light. OK
Image of page 405
DIAGNOSTICS THEFT DETERRENT SYSTEM DI–407 559 AuthorĂ: DateĂ: 1997 LEXUS ES300 (RM511U) 2 Check harness and connector between theft deterrent ECU and indicator light, indicator light and body ground (See page IN–27 ). NG Repair or replace harness or connector. 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 DI–405 ).
Image of page 406
N22060 Theft Deterrent ECU E J/C J/C A A A IG A +B1 J35 C E/G Room J/B No.2 FL BLOCK C FL MAIN 3.0 W Battery 1 11 4 ALT 1 1 Instrument Panel J/B Instrument Panel J/B J16 J/C J6 J5 T4 T3 R L–W L–W 1 1W 8 1G 12 2J R R 1 2A SHORT PIN 7.5A DOME 1 1D 4 1B 25A DOOR B–R F11 F6 F8 B 100A B–G W–B W–B +B2 1 T3 DI–408 DIAGNOSTICS THEFT DETERRENT SYSTEM 560 AuthorĂ: DateĂ: 1997 LEXUS ES300 (RM511U) ECU Power Source Circuit CIRCUIT DESCRIPTION This circuit provides power to operate the theft deterrent ECU. WIRING DIAGRAM DI01W–01
Image of page 407
N20674 N20675 I00632 E/G Room J/B No.2 Instrument Panel J/B DOME Fuse DOOR Fuse N20676 E (–) +B1 (+) +B2 (+) DIAGNOSTICS THEFT DETERRENT SYSTEM DI–409 561 AuthorĂ: DateĂ: 1997 LEXUS ES300 (RM511U) INSPECTION PROCEDURE 1 Check DOME and DOOR fuse. PREPARATION: (a) Remove DOME fuse from engine room junction block No.2. (b) Remove DOOR fuse from instrument panel junction block No.1. CHECK: Check continuity of DOME and DOOR fuse. OK: Continuity NG Check for short in all the harness and compo- nents connected to the DOME and DOOR fuse (See attached wiring diagram). OK 2 Check voltage between terminals +B1, +B2 and E of theft deterrent ECU connec- tor. PREPARATION: Disconnect the theft deterrent ECU connector. CHECK: Measure voltage between terminals +B1, +B2 and E of theft de- terrent ECU connector. OK: Voltage: 10 14V OK Proceed to next circuit inspection shown on matrix chart (See page DI–405 ).
Image of page 408
DI–410 DIAGNOSTICS THEFT DETERRENT SYSTEM 562 AuthorĂ: DateĂ: 1997 LEXUS ES300 (RM511U) NG 3 Check for open in harness and connector between ECU and body ground (See page IN–27 ).
Image of page 409
Image of page 410

You've reached the end of your free preview.

Want to read all 584 pages?

  • Spring '14
  • Lexus, switch, Fuel injection, Engine control unit, mass air flow, air flow meter

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture