ELECTRONICALLY CONTROLLED BRAKE SYSTEM Slip Indicator Light Remains ON

DTC Code DTC Name
Slip Indicator Light Remains ON

DESCRIPTION

The skid control ECU (brake booster with master cylinder assembly) is connected to the combination meter assembly via CAN communication.

If the skid control ECU (brake booster with master cylinder assembly) stores a DTC, the slip indicator light comes on in the combination meter assembly.

The slip indicator light blinks during ABS, VSC, trailer sway control and/or TRC operation.

When the system is malfunctioning, the slip indicator light comes on to warn the driver.

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WIRING DIAGRAM

C270526E80

CAUTION / NOTICE / HINT

Note:

When replacing the skid control ECU (brake booster with master cylinder assembly), perform initialization and calibration of the linear solenoid valve.

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PROCEDURE

  1. CHECK CAN COMMUNICATION SYSTEM

    1. Check if CAN communication system DTCs are output.

      for LHD:Click hereClick hereClick here

      for RHD:Click here

    Result

    Result

    Proceed to

    DTCs are not output.

    A

    DTCs are output.

    B
    B

    INSPECT CAN COMMUNICATION SYSTEM

    for LHD:Click here

    for RHD:Click here

    A

  2. CHECK IF BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY CONNECTOR IS SECURELY CONNECTED

    1. Check if the skid control ECU (brake booster with master cylinder assembly) connector is securely connected.

      OK

      The connector is securely connected.

    Result

    Proceed to

    OK

    NG
    NG

    CONNECT CONNECTOR TO BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY CORRECTLY

    OK

  3. CHECK AUXILIARY BATTERY

    1. Check the auxiliary battery voltage.

      Standard Voltage

      Tester Connection

      Switch Condition

      Specified Condition

      Auxiliary battery

      Power switch on (IG)

      11 to 14 V

      Auxiliary battery

      Power switch on (READY)

      11 to 15.5 V

    Result

    Proceed to

    OK

    NG
    NG

    CHARGE OR REPLACE AUXILIARY BATTERY

    OK

  4. READ VALUE USING GTS (SLIP INDICATOR LIGHT)

    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Select the Data List on the GTS.

      Click here

      Chassis > ABS/VSC/TRC > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      Slip Indicator Light

      Slip indicator light

      ON or OFF

      ON: Indicator light on

      OFF: Indicator light off

      -

      Chassis > ABS/VSC/TRC > Data List

      Tester Display

      Slip Indicator Light

    4. Check the GTS display condition of the slip indicator light.

      Result

      Result

      Proceed to

      Display of the Data List remains OFF.

      A

      Display of the Data List remains ON.

      B
    A

    INSPECT METER / GAUGE SYSTEM

    Click here

    B

    REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY

    for LHD:Click here

    for RHD:Click here