VEHICLE STABILITY CONTROL SYSTEM Brake Warning 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 VSC sensor neutral memorization Click here.

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Check if a CAN communication system DTC is output Click here.

      Result
      Result Proceed to
      DTC is not output. A
      DTC is output. B

    B

    INSPECT CAN COMMUNICATION SYSTEM Click here

    A

  2. CHECK BRAKE WARNING LIGHT


    1. Disconnect the skid control ECU (brake actuator assembly) connector.

    2. Turn the ignition switch to ON.

    3. Check that the brake warning light comes on.

      OK
      The brake warning light comes on.

      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.


    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

    NG

  3. INSPECT COMBINATION METER ASSEMBLY


    1. Turn the ignition switch off.

    2. Reconnect the skid control ECU (brake actuator assembly) connector.

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

    4. Check the combination meter assembly.

      OK
      The brake warning 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.


    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here