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Home >> Toyota >> 2005 >> Avalon XLS >> Repair and Diagnosis >> Brakes >> Traction Control >> Brakes - Abs With EBD & BA & TRAC & VSC (Diagnostics) >> VSC Warning Light Circuit (Does Not Light Up) >> Inspection Procedure

Inspection Procedure

NOTE: When replacing the ABS & TRACTION actuator assy, perform zero point calibration (see CALIBRATION  ).
  1. INSPECT CAN COMMUNICATION SYSTEM 
    1. Check if the CAN communication system DTC is output (see DTC CHECK/CLEAR  ).

    Result: 

    RESULT

    DTC is not output A
    DTC is output B
    1. B: REPAIR CAN COMMUNICATION SYSTEM (SEE  HOW TO PROCEED WITH TROUBLESHOOTING  ) 
    2. A: Go to next step. 
  2. INSPECT MULTIPLEX COMMUNICATION SYSTEM 
    1. Check if the multiplex communication system DTC is output (see DTC CHECK/CLEAR ).

    Result: 

    RESULT

    DTC is not output A
    DTC is output B
    1. B: REPAIR MULTIPLEX COMMUNICATION SYSTEM (SEE  HOW TO PROCEED WITH TROUBLESHOOTING  ) 
    2. A: Go to next step. 
  3. INSPECT VSC WARNING LIGHT 
    1. Connect the hand held tester to the DLC3.
    2. Start the engine.
    3. Select "ACTIVE TEST" on the hand held tester.

      ACTIVE TEST: ABS/VSC 

      ACTIVE TEST - ABS/VSC

      Item Vehicle Condition/Test Details Diagnostic Note
      VSC WARN LIGHT Turn VSC warning light ON/OFF Observe combination meter
    4. Check that "ON" and "OFF" of the VSC warning light are indicated on the combination meter when using the hand held tester.

      OK: 

      The VSC warning light turns on or off in accordance with the hand held tester. 

    1. NG: Go to step 4 
    2. OK: REPLACE ABS & TRACTION ACTUATOR ASSY (SEE  REPLACEMENT  ) 

    HINT:

    If troubleshooting has been carried out according to the problem symptoms table, refer back to the table and proceed to the next step before replacing the part (see PROBLEM SYMPTOMS TABLE ).

  4. INSPECT COMBINATION METER ASSY 
    1. Check the combination meter assy (see HOW TO PROCEED WITH TROUBLESHOOTING ).
    1. NG: REPLACE COMBINATION METER ASSY (SEE  OVERHAUL  ) 
    2. OK: END 

    HINT:

    If troubleshooting has been carried out according to the problem symptoms table, refer back to the table and proceed to the next step (see PROBLEM SYMPTOMS TABLE  ).