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Home >> Lexus >> 2004 >> GX 470 >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Abs With EBD & BA & TRAC & VSC System - Diagnosis >> Abs Warning Light Circuit (Does Not Light Up) >> Inspection Procedure

Inspection Procedure

HINT:

Part the inspection from step  1 in case of using the hand-held tester and start from step  2 in case of not using the hand-held tester.

  1. PERFORM ACTIVE TEST BY ABS WARNING LIGHT 
    1. Check that "ON" and "OFF" of the ABS warning light can be shown on the combination meter on the hand-held tester.
    1. OK: CHECK AND REPLACE SKID CONTROL ECU ASSY 
    2. NG: GO TO NEXT STEP. 
  2. INSPECT ABS WARNING LIGHT 
    1. See HOW TO PROCEED WITH TROUBLESHOOTING .
    1. NG: REPAIR OR REPLACE COMBINATION METER ASSEMBLY 
    2. OK: GO TO NEXT STEP. 
  3. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - COMBINATION METER) 
    1. Check for open and short circuit in harness and connector between skid control ECU and combination meter (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: GO TO NEXT STEP. 

    CHECK AND REPLACE SKID CONTROL ECU ASSY