Click here

ELECTRONICALLY CONTROLLED BRAKE SYSTEM TRC OFF Indicator Light does not Come ON

Click here
Click here Click here
DTC Code DTC Name
  TRC OFF Indicator Light does not Come ON
Click here

DESCRIPTION

The skid control ECU (brake booster with master cylinder assembly) is connected to the combination meter assembly via CAN communication.

Click here

CAUTION / NOTICE / HINT

Note:

When replacing the skid control ECU (brake booster with master cylinder assembly), perform initialization and calibration of the linear solenoid valve (Click here).

Click here

PROCEDURE


  1. Click here

    CHECK CAN COMMUNICATION SYSTEM


    1. Check if CAN communication system DTCs are output (Click here).

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

  2. Click here

    PERFORM ACTIVE TEST USING GTS (TRC OFF INDICATOR LIGHT)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Select the Active Test on the GTS (Click here).

      Table 1. ABS/VSC/TRC
      Tester Display Test Part Control Range Diagnostic Note
      TRC(TRAC) OFF Indicator Light Multi-information display (TRC OFF indicator light) Display (Indicator light) ON/OFF Observe combination meter assembly

    4. Check that the multi-information display (TRC OFF indicator light) on the combination meter assembly turns on or off in accordance with GTS operation.

      OK
      The multi-information display (TRC OFF indicator light) turns on or off in accordance with GTS operation.
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C
      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 the part (Click here).


  3. Click here

    INSPECT COMBINATION METER ASSEMBLY


    1. Turn the power switch off.

    2. Perform the Active Test of the combination meter assembly (meter CPU) using the GTS (Click here).

    3. Check the combination meter assembly.

      OK
      The multi-information display turns on or off in accordance with GTS operation.
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C
      Tip:

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step (Click here).


    • A

      REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (Click here)

    • B

      REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (Click here)

    • C

      REPLACE COMBINATION METER ASSEMBLY (Click here)