VEHICLE STABILITY CONTROL SYSTEM (for Hydraulic Brake Booster) VSC Buzzer Circuit

DESCRIPTION

The skid control ECU is connected to the combination meter via CAN communication.

The combination meter has a built-in buzzer. The buzzer sounds during VSC operation.

WIRING DIAGRAM

A00O4FUE03

INSPECTION PROCEDURE

Note

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

PROCEDURE


  1. CHECK CAN COMMUNICATION LINE


    1. Turn the ignition switch off.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the ignition switch to ON.

    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 (for LHD: Click here, for RHD: Click here.

      OK
      CAN Bus Check indicates no malfunctions in CAN communication.
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    B

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

    C

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

    A

  2. READ VALUE USING INTELLIGENT TESTER (BUZZER)


    1. Turn the ignition switch off.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the ignition switch to ON.

    4. Turn the intelligent tester on.

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

      ABS/VSC/TRC
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Buzzer Buzzer/ ON or OFF

      ON: Buzzer on

      OFF: Buzzer off

      		 The combination meter has a built-in buzzer.

    6. When performing the Buzzer Active Test, check Buzzer in the Data List Click here.

      ABS/VSC/TRC
      Tester Display Test Part Control Range Diagnostic Note
      Buzzer Buzzer Buzzer ON/OFF The buzzer can be heard.
      Result
      Result Proceed to
      Data List Display Data List Display when Performing Active Test ON/OFF Operation
      ON Changes between ON and OFF A
      Does not change between ON and OFF B
      OFF Changes between ON and OFF A
      Does not change between ON and OFF B

    B

    INSPECT COMBINATION METER ASSEMBLY Click here

    A

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

  3. INSPECT COMBINATION METER ASSEMBLY


    1. Inspect the combination meter Click here.

      Result
      Result Proceed to
      NG A
      OK (for LHD) B
      OK (for RHD) C

    B

    REPLACE MASTER CYLINDER SOLENOID Click here

    C

    REPLACE MASTER CYLINDER SOLENOID Click here

    A

    REPLACE COMBINATION METER ASSEMBLY Click here