VEHICLE STABILITY CONTROL SYSTEM ABS Warning Light does not Come ON

DTC Code DTC Name
ABS Warning Light does not Come ON

DESCRIPTION

The skid control ECU (brake actuator assembly) is connected to the combination assembly meter via CAN communication.

WIRING DIAGRAM

Refer to ABS Warning Light Remains ON.

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CAUTION / NOTICE / HINT

Note:

When replacing the skid control ECU (brake actuator assembly), perform zero point calibration.

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PROCEDURE

  1. CHECK CAN COMMUNICATION SYSTEM

    1. Check if CAN communication system DTCs are output.

      for LHD with Central Gateway ECU:Click hereClick here

      for RHD with Central Gateway ECU:Click hereClick hereClick here

      for LHD without Central Gateway ECU:Click hereClick here

      for RHD without Central Gateway ECU:Click hereClick here

    Result

    Proceed to

    DTC is not output

    DTC is output (for LHD with Central Gateway ECU)

    DTC is output (for RHD with Central Gateway ECU)

    DTC is output (for LHD without Central Gateway ECU)

    DTC is output (for RHD without Central Gateway ECU)
    DTC is output (for LHD with Central Gateway ECU)

    CHECK CAN COMMUNICATION SYSTEM

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    DTC is output (for RHD with Central Gateway ECU)

    CHECK CAN COMMUNICATION SYSTEM

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    DTC is output (for LHD without Central Gateway ECU)

    CHECK CAN COMMUNICATION SYSTEM

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    DTC is output (for RHD without Central Gateway ECU)

    CHECK CAN COMMUNICATION SYSTEM

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    DTC is not output

  2. PERFORM ACTIVE TEST USING GTS (ABS WARNING LIGHT)

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

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

    5. According to the display on the GTS, perform the Active Test.

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

    Chassis > ABS/VSC/TRC > Active Test

    Tester Display

    Measurement Item

    Control Range

    Diagnostic Note

    ABS Warning Light

    ABS warning light

    Warning light OFF/ON

    Observe combination meter

    Vehicle condition: Vehicle stopped

    Chassis > ABS/VSC/TRC > Data List

    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

    -

    Chassis > ABS/VSC/TRC > Active Test

    Active Test Display

    ABS Warning Light

    Data List Display

    ABS Warning Light

    Result

    Result

    Proceed to

    ABS warning light in the Data List does not change using the Active Test

    A

    ABS warning light in the Data List turns ON/OFF using the Active Test

    B
    A

    REPLACE BRAKE ACTUATOR ASSEMBLY

    Click hereClick here

    B

  3. INSPECT COMBINATION METER ASSEMBLY

    1. Turn the ignition switch off.

    2. Perform Active Test of the combination meter assembly using the GTS.

    3. Check the combination meter assembly.

    Body Electrical > Combination Meter > Active Test

    Tester Display

    Indicat. Lamp ABS

    OK

    The ABS warning light turns on or off in accordance with the GTS.

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY

    Click hereClick here

    NG

    INSPECT METER / GAUGE SYSTEM

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