Skid Control Buzzer Circuit

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: Skid Control Buzzer Circuit
- Skid Control Buzzer Circuit

DESCRIPTION

The skid control buzzer sounds during VSC operation.

WIRING DIAGRAM





INSEPCTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM (SKID CONTROL BUZZER)

(a) Using the Techstream Active Test, generate a control command and then check that the skid control buzzer operates.

ABS/VSC/TRAC





OK:

Skid control buzzer can be heard.

OK -- REPLACE SKID CONTROL ECU
NG -- Continue to next step.

2. INSPECT SKID CONTROL BUZZER





(a) Disconnect the skid control buzzer connector.

(b) Apply battery voltage to terminals 1 and 2 of the skid control buzzer connector, and then check that the buzzer sounds.

OK:

Buzzer sound can be heard.

NG -- REPLACE SKID CONTROL BUZZER
OK -- Continue to next step.

3. CHECK WIRE HARNESS (SKID CONTROL BUZZER - SKID CONTROL ECU AND BATTERY)





(a) Disconnect the V8 buzzer connector.

(b) Disconnect the S7 ECU connector.

(c) Measure the resistance of the wire harness side connectors.

Standard resistance:





(d) Turn the ignition switch ON.

(e) Measure the voltage of the wire harness side connectors.

Standard voltage:





NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR

OK -- REPLACE SKID CONTROL ECU