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

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

DESCRIPTION

Refer to TRC OFF Indicator Light Remains ON (Click here)

WIRING DIAGRAM

Refer to TRC OFF Indicator Light Remains ON (Click here)

CAUTION / NOTICE / HINT

Note:

When replacing the master cylinder solenoid, perform calibration (Click here).

PROCEDURE

  1. CHECK CAN COMMUNICATION LINE

    1. Turn the engine switch off.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the engine switch on (IG).

    4. Turn the intelligent tester on.

    5. Select CAN Bus Check from the System Selection Menu screen and follow the prompts on the screen to inspect the CAN bus.

      Click here

      OK

      CAN Bus Check indicates no malfunctions in CAN communication.

      Result

      Result

      OK

      NG

    NG

    GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)

    OK
  2. INSPECT VSC OFF SWITCH

    1. Remove the VSC OFF switch.

      Click here

    2. C220881C01

      *a

      Component without harness connected

      (VSC OFF Switch)

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      9 - 6

      Switch is not pushed

      10 kΩ or higher

      Switch is pushed

      Below 1 Ω

      Result

      Result

      OK

      NG

    NG

    REPLACE VSC OFF SWITCH

    OK
  3. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - VSC OFF SWITCH)

    1. Disconnect the A7 skid control ECU connector.

    2. Disconnect the G5 VSC OFF switch connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      A7-9 (CSW) - G5-9

      Always

      Below 1 Ω

      A7-9 (CSW) - Body ground

      Always

      10 kΩ or higher

      G5-6 - Body ground

      Always

      Below 1 Ω

      Result

      Result

      OK

      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK
  4. READ VALUE USING INTELLIGENT TESTER (TRC/VSC OFF MODE)

    1. Turn the engine switch off.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the engine switch on (IG).

    4. Turn the intelligent tester on.

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

      Chassis > ABS/VSC/TRC > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      TRC/VSC Off Mode

      TRC/VSC off mode

      Normal, TRC OFF or VSC OFF

      Normal: Normal mode

      TRC OFF: TRC OFF mode

      VSC OFF: VSC OFF mode

      -

    6. Check that the mode display changes according to VSC OFF switch operation.

      OK

      Display changes according to switch operation.

      Result

      Result

      OK

      NG

    OK

    GO TO METER / GAUGE SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)

    NG

    REPLACE MASTER CYLINDER SOLENOID