Diagnosis Procedure

SUNROOF SWITCH CIRCUIT


Description

The BCM supplies power to the integrated CPU of the sunroof motor assembly. The tilt and slide functions of the sunroof motor assembly is controlled by the sunroof switch.




SUNROOF SWITCH CIRCUIT


Diagnosis Procedure

Regarding Wiring Diagram information, Sunroof System.
1. CHECK SUNROOF SWITCH INPUT SIGNAL





1. Turn ignition switch ON.
2. Check voltage between sunroof switch connector and ground.





Are the voltage measurements as specified?
YES - Sunroof switch is operating normally.
NO - GO TO 2
2. CHECK SUNROOF SWITCH CIRCUITS





1. Turn ignition switch OFF.
2. Disconnect sunroof motor assembly connector R4 and sunroof switch connector R104.
3. Check continuity between sunroof switch connector R104 (A) and sunroof motor assembly connector R4 (B).





4. Check continuity between sunroof switch connector R104 (A) and ground.





Are the continuity test results as specified?
YES - GO TO 3
NO - Repair harness or connector.
3. CHECK SUNROOF SWITCH





1. Check continuity between sunroof switch terminals.





Are the continuity test results as specified?
YES - Sunroof switch is operating normally.
NO - Replace sunroof switch (map lamp assembly).