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Home >> Toyota >> 2006 >> Matrix Base, 4WD >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> Brakes - Abs With VSC >> Vehicle Stability Control System >> VSC Warning Light does not Come ON >> Inspection Procedure

Inspection Procedure

NOTE: When replacing the ABS and TRACTION actuator assembly, perform zero point CALIBRATION  .
  1. INSPECT VSC WARNING LIGHT 
    1. WHEN USING INTELLIGENT TESTER:
      1. Connect the intelligent tester to the DLC3 and start the engine.
      2. Select the "VSC WARN LIGHT" in the ACTIVE TEST and operate the VSC warning light on the intelligent tester.
        VSC WARNING LIGHT (USING INTELLIGENT TESTER)

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

        OK: The VSC warning light turns on or off in accordance with the intelligent tester. 

    2. WHEN NOT USING INTELLIGENT TESTER:
      1. Turn the ignition switch off and disconnect the connector from the skid control ECU.
      2. Ground terminal VSCW of the skid control the ECU.
      3. Turn the ignition switch to the ON position.
      4. Check the VSC warning light.

        OK 

        VSC WARNING LIGHT (WHEN NOT USING INTELLIGENT TESTER)

        VSCW - GND Condition Illumination Condition
        Connected ON
        Disconnected OFF
        Fig 1: Inspecting VSC Warning Light
        G04465296Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: Go to step 2 

    OK: REPLACE ABS AND TRACTION ACTUATOR ASSEMBLY 

  2. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - COMBINATION METER) 
    1. Disconnect the skid control ECU connector and combination meter connector.
    2. Measure the resistance according to the value(s) in SKID CONTROL ECU - COMBINATION METER (1 OF 2)  .

      Standard resistance 

      SKID CONTROL ECU - COMBINATION METER (1 OF 2)

      Tester Connection Specified Condition
      C18-1 - S1-36 (VSCW) Below 1 Ω
    3. Measure the resistance according to the value(s) in SKID CONTROL ECU - COMBINATION METER (2 OF 2)  .

      Standard resistance 

      SKID CONTROL ECU - COMBINATION METER (2 OF 2)

      Tester Connection Specified Condition
      S1-36 (VSCW) - Body ground 10 kΩ or higher
      Fig 2: Checking Harness And Connector (Skid Control ECU - Combination Meter)
      G04465297Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  3. INSPECT COMBINATION METER ASSEMBLY 
    1. Check combination meter assembly (See HOW TO PROCEED WITH TROUBLESHOOTING ).

    NG: REPLACE COMBINATION METER ASSEMBLY 

    OK: REPLACE ABS AND TRACTION ACTUATOR ASSEMBLY 

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