VEHICLE STABILITY CONTROL SYSTEM Skid Control Buzzer Circuit

DTC Code DTC Name
Skid Control Buzzer Circuit

DESCRIPTION

The skid control buzzer sounds upon receiving a signal from the skid control ECU.

WIRING DIAGRAM

C173348E15

CAUTION / NOTICE / HINT

Note:

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

PROCEDURE

  1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (DSS SIGNAL 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/TRC / Active Test.

      Chassis > ABS/VSC/TRC > Active Test

      Tester Display

      Measurement Item

      Control Range

      Diagnostic Note

      DSS Signal Buzzer

      Skid control buzzer

      Buzzer ON/OFF

      The buzzer can be heard.

    6. Check that the skid control buzzer sounds/stops when turning the skid control buzzer on/off by using the intelligent tester.

      Result

      Result

      Proceed to

      Buzzer does not sound or sounds constantly

      A

      Buzzer sounds/stops

      B
    B

    USE SIMULATION METHOD TO CHECK

    Click here

    A

  2. CHECK TERMINAL VOLTAGE (IG1)

    1. Disconnect the A9 skid control buzzer connector.

    2. C216859C01

      *a

      Front view of wire harness connector

      (to Skid Control Buzzer)

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

      Standard Voltage

      Tester Connection

      Switch Condition

      Specified Condition

      A9-2 - Body ground

      Engine switch on (IG)

      11 to 14 V

      Result

      Result

      OK

      NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT SKID CONTROL BUZZER

    1. Remove the skid control buzzer.

      Click here

    2. C262064C01

      *a

      Component without harness connected

      (Skid Control Buzzer)

      Apply battery voltage to the skid control buzzer, and check that the buzzer sounds.

      Standard Resistance

      Measurement Condition

      Specified Condition

      Battery positive (+) voltage - Terminal 2

      Skid control buzzer sounds

      Battery negative (-) voltage - Terminal 1

      Result

      Result

      OK

      NG
    NG

    REPLACE SKID CONTROL BUZZER ASSEMBLY

    Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (SKID CONTROL BUZZER - SKID CONTROL ECU)

    1. Disconnect the A7 skid control ECU connector.

    2. Disconnect the A9 skid control buzzer connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      A7-30 (BZ) - A9-1

      Always

      Below 1 Ω

      A7-30 (BZ) - Body ground

      Always

      10 kΩ or higher

      Result

      Result

      OK

      NG
    OK

    REPLACE MASTER CYLINDER SOLENOID

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR