VEHICLE STABILITY CONTROL SYSTEM AUTO LSD Indicator Light does not Come ON

DTC Code DTC Name
AUTO LSD Indicator Light does not Come ON

DESCRIPTION

Refer to AUTO LSD Indicator Light Remains ON.

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WIRING DIAGRAM

Refer to AUTO LSD indicator light circuit.

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CAUTION / NOTICE / HINT

Note:

When replacing the 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:Click hereClick hereClick here

      for RHD:Click hereClick hereClick here

    Result

    Proceed to

    DTC is not output

    DTC is output (for LHD)

    DTC is output (for RHD)
    DTC is output (for LHD)

    CHECK CAN COMMUNICATION SYSTEM

    Click here

    DTC is output (for RHD)

    CHECK CAN COMMUNICATION SYSTEM

    Click here

    DTC is not output

  2. CHECK HARNESS AND CONNECTOR (CSW TERMINAL)

    1. Turn the ignition switch off.

    2. Disconnect the A64 skid control ECU (brake actuator assembly) connector.

    3. C199357C58

      *a

      Front view of wire harness connector

      (to Skid Control ECU [Brake Actuator Assembly])

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      A64-30 (CSW) - Body ground

      VSC OFF switch held on

      Below 1 Ω

      A64-30 (CSW) - Body ground

      VSC OFF switch off (Not pressed)

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    INSPECT TRACTION CONTROL SWITCHClick here

    OK

  3. PERFORM ACTIVE TEST USING GTS (AUTO LSD INDICATOR LIGHT)

    1. Reconnect the A64 skid control ECU (brake actuator assembly) connector.

    2. Connect the GTS to the DLC3.

    3. Turn the ignition switch to ON.

    4. Turn the GTS on.

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

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

    7. When performing the AUTO LSD Indicator Light Active Test, check AUTO LSD Indicator Light in the Data List.

    Chassis > ABS/VSC/TRC > Active Test

    Tester Display

    Measurement Item

    Control Range

    Diagnostic Note

    Auto LSD Indicator Light

    AUTO LSD indicator light

    Indicator light ON/OFF

    for 2WD

    Observe combination meter

    Vehicle condition: Vehicle stopped

    Chassis > ABS/VSC/TRC > Data List

    Tester Display

    Measurement Item

    Range

    Normal Condition

    Diagnostic Note

    Auto LSD Indicator Light

    AUTO LSD indicator light

    ON or OFF

    OFF: AUTO LSD indicator light off

    ON: AUTO LSD indicator light on

    for 2WD

    Chassis > ABS/VSC/TRC > Active Test

    Active Test Display

    Auto LSD Indicator Light

    Data List Display

    Auto LSD Indicator Light

    Result

    Result

    Proceed to

    AUTO LSD indicator light in the Data List does not change using the Active Test

    A

    AUTO LSD indicator light in the Data List turns ON/OFF using the Active Test

    B
    A

    REPLACE BRAKE ACTUATOR ASSEMBLY

    Click here

    B

  4. 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. Auto LSD

    OK

    The AUTO LSD indicator light turns on or off in accordance with the GTS.

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY

    Click here

    NG

    INSPECT METER / GAUGE SYSTEM

    Click here

  5. INSPECT TRACTION CONTROL SWITCH

    1. Remove the VSC OFF switch (traction control switch).

      Click here

    2. Inspect the VSC OFF switch (traction control switch).

      Click here

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE TRACTION CONTROL SWITCH

    Click here

    OK

  6. CHECK HARNESS AND CONNECTOR (BRAKE ACTUATOR ASSEMBLY - TRACTION CONTROL SWITCH)

    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      A64-30 (CSW) - G51-6 (+)

      Always

      Below 1 Ω

      G51-3 (E) - Body ground

      Always

      Below 1 Ω

      A64-30 (CSW) or G51-6 (+) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    OK

    USE SIMULATION METHOD TO CHECK

    Click hereClick hereClick hereClick here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR