Parking Brake Switch

PARKING BRAKE SWITCH

Description

The parking brake switch converts the status of the parking brake pedal to an electric signal and transmits it to the combination meter. Then, through CAN communication, the signal is carried to the ABS actuator and electric unit (control unit).


Component Function Check


1. CHECK PARKING BRAKE SWITCH OPERATION

Operate the parking brake and check that the brake warning lamp in the combination meter turns on/off correctly.






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


Diagnosis Procedure

Regarding Wiring Diagram information, Coupe or VDC/TCS/ABS.

1. CHECK PARKING BRAKE SWITCH CIRCUIT

1.Disconnect combination meter and parking brake switch connectors.
2.Check continuity between combination meter connector M24 terminal 26 and parking brake switch connector E35 (sedan with CVT), M73 (sedan with M/T) or M108 (coupe) terminal 1.





3.Check continuity between combination meter harness connector M24 terminal 26 and ground.





Is the inspection result normal?
YES- GO TO 2
NO- Repair harness or connector.

2. CHECK PARKING BRAKE SWITCH

Perform the parking brake switch component inspection. Refer to "Component Inspection".
Is the inspection result normal?
YES- Check parking brake switch case ground condition.
NO- Replace parking brake switch.


Component Inspection


1. CHECK PARKING BRAKE SWITCH

1.Turn ignition switch OFF.
2.Disconnect parking brake switch connector.
3.Check continuity between parking brake switch terminal 1 and ground.





Is the inspection result normal?
YES- Inspection End.
NO- Replace parking brake switch.


Special Repair Requirement


1. ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION

Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actuator and electric unit (control unit). Service and Repair.
- END