Check Sunroof Motor Assembly Power Supply and Ground Circuit

SUNROOF


Check Sunroof Motor Assembly Power Supply and Ground Circuit

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 connector and ground.










OK or NG
OK - GO TO 2.
NG - GO TO 3.
2.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between sunroof motor assembly connector and ground.










OK or NG
OK - Sunroof motor assembly power supply and ground circuit are OK. Further inspection is necessary. Refer to Sunroof.
NG - Repair or replace harness.
3.CHECK SUNROOF MOTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM connector and sunroof motor assembly connector.










4. Check continuity between BCM connector and ground.





OK or NG
OK - GO TO 4.
NG - Repair or replace harness.
4.CHECK BCM OUTPUT SIGNAL
1. Connect BCM connector.
2. Turn ignition switch ON.
3. Check voltage between BCM connector and ground.










OK or NG
OK - Replace sunroof motor assembly.
NG - Replace BCM.