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

Door Lock Motors and Relays


Object Number: 1861261  Size: FS
Master Electrical Component List
Power Door Locks Description and Operation
Control Module References
B+ BUS 1 of 2
BATT MAIN 3, DR/LCK, RRWPR, RSE/KEY CAPTR, and S/ROOF Fuses and POWER WNDW
G203 and G205
Figure 2:

Door Latches and Switches


Object Number: 1861264  Size: FS
Master Electrical Component List
Power Door Locks Description and Operation
Control Module References
Front Wiper Schematics
G401
G311