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

Door Lock Switches


Object Number: 1638425  Size: FS
Master Electrical Component List
Power Door Locks Description and Operation
Control Module References
Door Lock Actuators
Door Ajar Indicators
Switches
G301
Switches
G301
Figure 2:

Door Lock Actuators


Object Number: 1638427  Size: FS
Master Electrical Component List
Power Door Locks Description and Operation
Control Module References
Door Ajar Indicators
Door Lock Switches
Underhood Fuse Block, ICBM 2, Body Control Module (BCM), ACCESSORY Relay, DOOR LOCK, INTERIOR LIGHTS, POWER WINDOWS, REAR WIPER, ROOF/HEAT SEAT and WIPER SW Fuses
Figure 3:

Door Ajar Indicators


Object Number: 1638428  Size: FS
Master Electrical Component List
Door Ajar Indicator Description and Operation
Control Module References
Door Lock Actuators
Door Lock Switches
G301
Low Speed Serial Data
G301