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

DESCRIPTION

The skid control ECU (brake actuator assembly) is connected to the combination meter assembly via CAN communication.

The combination meter assembly has a built-in buzzer.

WIRING DIAGRAM

A01DU0VE11

INSPECTION PROCEDURE

Note

When replacing the skid control ECU (brake actuator assembly), perform calibration Click here.

PROCEDURE


  1. CHECK CAN COMMUNICATION LINE


    1. Check if CAN communication system DTCs are output (for LHD without Entry and Start System: Click here, for RHD without Entry and Start System: Click here.

      Result
      Result Proceed to
      DTC not output A
      DTC output for LHD without Entry and Start System B
      DTC output for RHD without Entry and Start System 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 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/TRAC / Data List.

      ABS/VSC/TRAC
      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/TRAC
      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.


    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here