Traction Control Switch: Testing and Inspection

VDC OFF SWITCH





Description
VDC OFF switch can deactivate (turn OFF) the VDC/TCS function by pressing the VDC OFF switch.




Component Function Check
1.CHECK VDC OFF SWITCH OPERATION
Turn ON/OFF the VDC OFF switch and check that the VDC OFF indicator lamp in the combination meter turns
ON/OFF correctly.





Is the inspection result normal?
YES - Inspection End
NO - Go to diagnosis procedure. SEE Diagnosis Procedure.




Diagnosis Procedure
Regarding Wiring Diagram information, Electrical Diagrams.
1.CHECK VDC OFF SWITCH
Perform the VDC OFF switch component inspection. SEE Component Inspection.
Is the inspection result normal?
YES - GO TO 2
NO - Replace VDC OFF switch.
2.CHECK VDC OFF SWITCH HARNESS





1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check continuity between ABS actuator and electric unit (control unit) connector E125 (A) terminal 38 and VDC OFF switch connector M253 (B) terminal 1.





3. Check continuity between ABS actuator and electric unit (control unit) connector E125 (A) terminal 38 and ground.





Is the inspection result normal?
YES - GO TO 3
NO - Repair or replace harness.
3.CHECK VDC OFF SWITCH GROUND





Check continuity between VDC OFF switch connector M253 terminal
2 and ground.





Is the inspection result normal?
YES - GO TO 4
NO - Repair or replace harness.
4.CHECK COMBINATION METER
Check if the indication and operation of combination meter are normal. Diagnosis Description.
Is the inspection result normal?
YES - Replace ABS actuator and electric unit (control unit). Service and Repair.
NO - Replace combination meter. Service and Repair.




Component Inspection
1.CHECK VDC OFF SWITCH





1. Turn ignition switch OFF.
2. Disconnect VDC OFF switch connector.
3. Check continuity between VDC OFF switch terminals.





Is the inspection result normal?
YES - Inspection End
NO - Replace VDC OFF switch.




Special Repair Requirement
1.ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform neutral position adjustment for the steering angle sensor when replacing the ABS actuator and electric unit (control unit). Description.
- GO TO 2
2.CALIBRATION OF DECEL G SENSOR
Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit). Description.
- END