ANTI-LOCK BRAKE SYSTEM Brake Warning Light does not Come ON

DESCRIPTION

Refer to Brake Warning Light Remains ON Click here.

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.

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


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

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

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  2. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (BRAKE WARNING LIGHT)


    1. Warm up the engine.

    2. Turn the ignition switch off.

    3. Replace the normal DLC3 cable (12 V specification) for the intelligent tester with the 24 V DLC3 cable.

      Note

      Be sure to use the 24 V DLC3 cable when connecting the intelligent tester to the DLC3. Using the normal DLC3 cable (12 V specification) will cause damage to the tester.

    4. Connect the intelligent tester to the DLC3.

    5. Turn the ignition switch to ON.

    6. Turn the intelligent tester on.

    7. Enter the following menus: Chassis / ABS/VSC/TRC / Active Test.

    8. According to the display on the intelligent tester, perform the Active Test.

      ABS/VSC/TRC
      Tester Display Test Part Control Range Diagnostic Note
      Brake Warning Light Brake warning light Warning light OFF / ON Observe combination meter

    9. Select the Data List on the intelligent tester.

      ABS/VSC/TRC
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Brake Warning Light Brake warning light / OFF or ON

      OFF: Warning light OFF

      ON: Warning light ON

      		 -

    10. Check the operating condition of the brake warning light when operating it using the intelligent tester.

      Result
      Result Proceed to
      Brake warning light in the Data List does not change using the Active Test. A
      Brake warning light in the Data List turns ON/OFF using the Active Test. B

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

  3. REPLACE COMBINATION METER ASSEMBLY


    1. Turn the ignition switch off.

    2. Replace the combination meter assembly Click here.


    NEXT

  4. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (BRAKE WARNING LIGHT)


    1. Warm up the engine.

    2. Turn the ignition switch off.

    3. Replace the normal DLC3 cable (12 V specification) for the intelligent tester with the 24 V DLC3 cable.

      Note

      Be sure to use the 24 V DLC3 cable when connecting the intelligent tester to the DLC3. Using the normal DLC3 cable (12 V specification) will cause damage to the tester.

    4. Connect the intelligent tester to the DLC3.

    5. Turn the ignition switch to ON.

    6. Turn the intelligent tester on.

    7. Enter the following menus: Chassis / ABS/VSC/TRC / Active Test.

    8. According to the display on the intelligent tester, perform the Active Test.

      ABS/VSC/TRC
      Tester Display Test Part Control Range Diagnostic Note
      Brake Warning Light Brake warning light Warning light OFF / ON Observe combination meter

    9. Check the operating condition of the brake warning light when operating it using the intelligent tester.

      OK
      The brake warning light turns on or off in accordance with the intelligent tester operation.

    NG

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

    OK

    END