Parking Brake Switch
PARKING BRAKE SWITCHDescription
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. Then 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
1. CHECK PARKING BRAKE SWITCH CIRCUIT
1. Disconnect combination meter connector and parking brake switch connector.
2. Check continuity between combination meter harness connector M24 (A) terminal 26 and parking brake switch harness connector M73 (B) terminal 1.
26-1: Continuity should exist.
3. Check continuity between combination meter harness connector M24 (A) terminal 26 and ground.
26 - Ground: Continuity should not exist.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair harness or connector.
2. CHECK PARKING BRAKE SWITCH
Check continuity between parking brake switch terminal 1 and switch case ground.
Is the inspection result normal?
YES >> Check parking brake switch case ground condition.
NO >> Replace parking brake switch.
Component Inspection
INSPECTION PROCEDURE
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.