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

DTC Code DTC Name
TRC 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.

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PROCEDURE

  1. CHECK CAN COMMUNICATION SYSTEM

    1. Check if CAN communication system DTCs are output.

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    Result

    Result

    Proceed to

    DTCs are not output.

    A

    DTCs are output.

    B
    B

    INSPECT CAN COMMUNICATION SYSTEM

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    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

      TRC(TRAC) OFF Indicator Light

      TRC OFF indicator light*1

      Multi-information display (TRC OFF massage)*2

      Indicator light ON/OFF

      Observe combination meter assembly

      Chassis > ABS/VSC/TRC > Active Test

      Tester Display

      TRC(TRAC) OFF Indicator Light

      *1: except Multi-information Display (Color Type)

      *2: for Multi-information Display (Color Type)

    4. Check that the TRC OFF indicator light (except Multi-information Display (Color Type)) or the multi-information display (TRC OFF message) (for Multi-information Display (Color Type)) on the combination meter assembly turns on or off in accordance with the GTS operation.

      OK

      The TRC OFF indicator light (except Multi-information Display (Color Type)) or the multi-information display (TRC OFF message) (for Multi-information Display (Color Type)) turns on or off in accordance with the Active Test operation.

      Tip:

      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.

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    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 (except Multi-information Display (Color Type)).

      Click here

      Body Electrical > Combination Meter > Active Test

      Tester Display

      VSC TRC Indicator

    3. Perform an Active Test of the combination meter assembly using the GTS (for Multi-information Display (Color Type)).

      Click here

      Body Electrical > Combination Meter > Active Test

      Tester Display

      Meter Display 1

    4. Check the combination meter assembly.

      OK

      The TRC OFF indicator light (except Multi-information Display (Color Type)) or the multi-information display (TRC OFF message) (for Multi-information Display (Color Type)) turns on or off in accordance with the Active Test operation.

      Tip:

      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

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