VEHICLE STABILITY CONTROL SYSTEM 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

A01VA5SE16
*1 Buzzer
*2 Skid Control ECU (Brake Actuator Assembly)
*3 Combination Meter Assembly
*4 CAN Communication Line

CAUTION / NOTICE / HINT

Note

When replacing the skid control ECU (brake actuator assembly), perform zero point calibration.

Click here

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Check if CAN communication system DTCs are output.

      for LHD: Click here

      for RHD: Click 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. PERFORM ACTIVE TEST USING GTS (BUZZER)


    1. Turn the ignition switch off.

    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.


      Chassis > ABS/VSC/TRC > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Buzzer meter buzzer ON/OFF

      Buzzer can be heard

      Vehicle condition: Vehicle stopped

    7. When performing the Buzzer Active Test, check Buzzer in the Data List.


      Chassis > ABS/VSC/TRC > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Buzzer Meter buzzer ON or OFF

      OFF: Buzzer off

      ON: Buzzer on

      		 The combination meter assembly has a built-in buzzer.

      Chassis > ABS/VSC/TRC > Active Test
      Active Test Display
      Buzzer
      Data List Display
      Buzzer
      Result
      Result Proceed to
      Buzzer in the Data List does not change using the Active Test A
      Buzzer in the Data List turns ON/OFF using the Active Test B

    A

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

    B

  3. INSPECT COMBINATION METER ASSEMBLY


    1. Inspect the combination meter.

      Click here

      Result
      Result
      OK
      NG

    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here