Traction Control Switch: Testing and Inspection

VDC OFF SWITCH

Component Function Check


1. CHECK VDC OFF SWITCH OPERATION

Check that VDC OFF indicator lamp in combination meter turns ON/OFF when VDC OFF switch is operated.
Is the inspection result normal?
YES- INSPECTION END
NO- Proceed to diagnosis procedure. Refer to "Diagnosis Procedure" .


Diagnosis Procedure


1. CHECK VDC OFF SWITCH CIRCUIT

1.Turn the power switch OFF.
2.Disconnect ABS actuator and electric unit (control unit) harness connector.
3.Disconnect VDC OFF switch harness connector.
4.Check the continuity between ABS actuator and electric unit (control unit) harness connector and VDC
OFF switch harness connector.





5.Check the continuity between ABS actuator and electric unit (control unit) harness connector and ground.





Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace error-detected parts.

2. CHECK VDC OFF SWITCH GROUND CIRCUIT

Check the continuity between VDC OFF switch harness connector and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace error-detected parts.

3. CHECK VDC OFF SWITCH

Check the VDC OFF switch. Refer to "Component Inspection" .
Is the inspection result normal?
YES- GO TO 4.
NO- Replace VDC OFF switch. Refer to "Removal and Installation" Service and Repair.

4. CHECK VDC OFF SWITCH SIGNAL

With CONSULT
1.Connect ABS actuator and electric unit (control unit) harness connector.
2.Connect VDC OFF switch harness connector.
3.Select "ABS", "DATA MONITOR" and "OFF SW" according to this order. Check the VDC OFF switch signal.





Is the inspection result normal?
YES- INSPECTION END
NO- GO TO 5.

5. CHECK TERMINAL

- Check the ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with harness connector.
- Check the VDC OFF switch pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES- Replace ABS actuator and electric unit (control unit). Refer to "Removal and Installation" Removal And Installation.
NO- Repair or replace error-detected parts.


Component Inspection


1. CHECK VDC OFF SWITCH

1.Turn the power switch OFF.
2.Disconnect triple switch harness connector.
3.Check the continuity between terminals of VDC OFF switch connector.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace VDC OFF switch. Refer to "Removal and Installation" Service and Repair.