VEHICLE STABILITY CONTROL SYSTEM VSC OFF Indicator Light does not Come ON

DTC Code DTC Name
VSC OFF Indicator Light does not Come ON

DESCRIPTION

Refer to VSC OFF Indicator Light Remains ON.

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WIRING DIAGRAM

Refer to VSC OFF Indicator 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: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. READ VALUE USING GTS (TRC/VSC OFF MODE)

    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 / Data List.

    6. According to the display on the GTS, read the Data List.

      Chassis > ABS/VSC/TRC > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      TRC/VSC Off Mode

      TRC/TRAC/VSC off mode

      Normal, TRC OFF, Unknown or VSC OFF

      Normal: Normal mode

      TRC OFF: TRC/TRAC off mode

      VSC OFF: VSC off mode

      Unknown: Unspecified

      Chassis > ABS/VSC/TRC > Data List

      Tester Display

      TRC/VSC Off Mode

    7. Check that the mode display changes according to the VSC OFF switch (traction control switch) operation.

      OK

      Display changes according to the switch operation.

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE BRAKE ACTUATOR ASSEMBLY

    Click here

    OK

  4. INSPECT COMBINATION METER ASSEMBLY

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

    2. Check the combination meter assembly.

      OK

      The VSC OFF indicator light turns on or off in accordance with the GTS.

    Body Electrical > Combination Meter > Active Test

    Tester Display

    Indicat. VSC OFF

    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