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

Module Power, Ground, Data Communication, Indicator, I/P Switch, and Liftgate Motor


Object Number: 1883222  Size: FS
Master Electrical Component List
Rear Hatch/Gate Description and Operation
Control Module References
Latch, Object Sensors, and Switches
Figure 2:

Latch, Object Sensors, and Switches


Object Number: 1883223  Size: FS
Master Electrical Component List
Rear Hatch/Gate Description and Operation
Control Module References
Module Power, Ground, Data Communication, Indicator, I/P Switch, and Liftgate Motor