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

DESCRIPTION

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

WIRING DIAGRAM

Refer to ABS Warning Light Remains ON Click here.

CAUTION / NOTICE / HINT

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 not output A
      DTC output B

    B
    A
  2. CHECK ABS WARNING LIGHT


    1. Disconnect the skid control ECU connector.

    2. Turn the ignition switch to ON.

    3. Check that the ABS warning light comes on.

      OK
      The ABS warning light comes on.
      Result
      Result Proceed to
      NG A
      OK (for LHD) B
      OK (for RHD) C

    B
    C
    A
  3. READ VALUE USING INTELLIGENT TESTER (ABS WARNING LIGHT)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

    4. Enter the following menus: Chassis / ABS/VSC/TRC / Data List.

    5. According to the display on the tester, read the Data List.

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

      OFF: Warning light off

      ON: Warning light on

      -
    6. When performing the ABS Warning Light Active Test, check ABS Warning Light in the Data List.

      ABS/VSC/TRC
      Tester Display Test Part Control Range Diagnostic Note
      ABS Warning Light ABS warning light Warning light ON/OFF Observe the combination meter.
      Result
      Result Proceed to
      Data List Display Data List Display when Performing Active Test ON/OFF Operation
      ON Changes between ON and OFF A
      Does not change between ON and OFF (for LHD) B
      Does not change between ON and OFF (for RHD) C
      OFF Changes between ON and OFF A
      Does not change between ON and OFF (for LHD) B
      Does not change between ON and OFF (for RHD) C

    A
    B
    C