GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Sunroof Subsystem - Early


Object Number: 576436  Size: LF
(1)Sunroof Motor Connector
(2)Sunroof Motor
(3)Sunroof Opening Position Switch
(4)Gear Housing
(5)Sunroof Module Connector C1
(6)Sunroof Module
(7)Sunroof Module Connector C2
Figure 2:

Power Sunroof - Late


Object Number: 1542523  Size: MF
(1)C398
(2)Sunroof Motor/Actuator