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

Driver Door


Object Number: 675941  Size: FS
Master Electrical Component List
Front Passenger Door
Front Doors Dimming
Memory Function Switch
Serial Data Class 2
Dimming Control
Figure 2:

Front Passenger Door


Object Number: 675942  Size: FS
Master Electrical Component List
Left Rear Door and Right Rear Door
Driver Door
Front Doors Dimming
Power Door Serial Data
Figure 3:

Left Rear Door and Right Rear Door


Object Number: 675944  Size: FS
Master Electrical Component List
Front Passenger Door
Power Door Serial Data
Power Door Serial Data