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

Rear of the Headliner


Object Number: 296895  Size: LF
(1)Power Sunroof Motor Assembly
(2)Sunroof Control Module
Figure 2:

Overhead Console


Object Number: 491764  Size: MF
(1)Power Sunroof Switch
(2)RH Vanity Mirror (on sunshade)
(3)RH Courtesy/Reading Lamp
(4)LH Courtesy/Reading Lamp
(5)LH Vanity Mirror (on sunshade)
(6)Universal Garage Door Opener Switches
Figure 3:

Rear Integration Module (RIM)


Object Number: 492170  Size: MF
(1)Rear Integration Module (RIM) C1
(2)Rear Integration Module (RIM) C2