VEHICLE STABILITY CONTROL SYSTEM Brake Warning Light does not Come ON

DESCRIPTION

The skid control ECU is connected to the combination meter via CAN communication.

WIRING DIAGRAM

Refer to Brake Warning Light Remains ON Click here.

INSPECTION PROCEDURE

Note


  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

  • When replacing the brake actuator assembly, perform zero point calibration Click here.

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


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

      Result
      Result Proceed to
      DTC not output A
      DTC output B

    B

    CHECK CAN COMMUNICATION SYSTEM Click here

    A

  2. CHECK BRAKE WARNING LIGHT


    1. Disconnect the skid control ECU connector.

    2. Turn the ignition switch to ON.

    3. Check that the brake warning light comes on.

      OK
      The brake warning light comes on.

    NG

    INSPECT COMBINATION METER ASSEMBLY Click here

    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

  3. INSPECT COMBINATION METER ASSEMBLY


    1. Turn the ignition switch off.

    2. Reconnect the skid control ECU connector.

    3. Connect the intelligent tester to the DLC3.

    4. Perform Active Test of the combination meter using the intelligent tester Click here.

      OK
      The brake warning light turns ON or OFF in accordance with the intelligent tester.

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here