VEHICLE STABILITY CONTROL SYSTEM VSC OFF Indicator Light does not Come ON

DESCRIPTION

The skid control ECU (brake actuator assembly) is connected to the combination meter assembly via CAN communication.

CAUTION / NOTICE / HINT

Note

When replacing the skid control ECU (brake actuator assembly), perform system variant learning.

Click here

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Check if CAN communication system DTCs are output.

      w/ Central Gateway ECU: Click here

      w/o Central Gateway ECU: Click here

      Result
      Result Proceed to
      DTCs are not output. A
      DTCs are output. B

    B

    INSPECT CAN COMMUNICATION SYSTEM w/ Central Gateway ECU: Click here
    INSPECT CAN COMMUNICATION SYSTEM w/o Central Gateway ECU: Click here

    A

  2. PERFORM ACTIVE TEST USING GTS (TRC OFF INDICATOR LIGHT)


    1. Connect the GTS to the DLC3.

    2. Start the engine.

    3. Select the Active Test using the GTS.

      Click here


      Chassis > ABS/VSC/TRC > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      VSC OFF Indicator Light VSC OFF indicator light Indicator light ON/OFF Observe combination meter assembly

      Chassis > ABS/VSC/TRC > Active Test
      Tester Display
      VSC OFF Indicator Light

    4. Check that the VSC OFF indicator light on the combination meter assembly turns on or off in accordance with the GTS operation.

      OK
      The VSC OFF indicator light turns on or off in accordance with the Active Test operation.

      Tech Tips

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing parts.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

    NG

  3. INSPECT COMBINATION METER ASSEMBLY


    1. Turn the ignition switch off.

    2. Perform an Active Test of the combination meter assembly using the GTS.

      Click here


      Body Electrical > Combination Meter > Active Test
      Tester Display
      Indicat. VSC OFF

    3. Check the combination meter assembly.

      OK
      The VSC OFF indicator light turns on or off in accordance with the Active Test operation.

      Tech Tips

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing parts.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

    NG

    INSPECT METER / GAUGE SYSTEM Click here