Power Supply And Ground Circuit

POWER SUPPLY AND GROUND CIRCUIT:_:SUNROOF MOTOR ASSEMBLY





Description
- BCM supplies power.
- It is sunroof motor and CPU integrated type.
- Tilt up/down & slide open/close by sunroof switch operation.




Diagnosis Procedure

SUNROOF MOTOR ASSEMBLY
1.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect sunroof motor assembly connector.
3. Turn ignition switch ON.
4. Check voltage between sunroof motor assembly harness connector and ground.





Is the inspection result normal?
YES - GO TO 2.
NO - GO TO 3.
2.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between sunroof motor assembly harness connector and ground.





Is the inspection result normal?
YES - INSPECTION END
NO - Repair or replace harness or connector.
3.CHECK SUNROOF MOTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM harness connector and sunroof motor assembly harness connector.





4. Check continuity between BCM harness connector and ground.





Is the inspection result normal?
YES - Replace BCM. Removal And Installation.
NO - Repair or replace harness or connector.