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

Door Lock/Unlock Relays


Object Number: 493026  Size: FS
Keyless Entry Components
Keyless Entry System Circuit Description
Door Locks
Handling ESD Sensitive Parts Notice
HAZ, D/L, TAIL, STOP and DOME Fuses
G201
G201
Figure 2:

Door Locks


Object Number: 510199  Size: FS
Keyless Entry Components
Keyless Entry System Circuit Description
Door Lock Switches and Cylinders
Handling ESD Sensitive Parts Notice
Figure 3:

Door Lock Switches and Cylinders


Object Number: 493029  Size: FS
Keyless Entry Components
Keyless Entry System Circuit Description
Door Locks
Door Lock/Unlock Relays
Handling ESD Sensitive Parts Notice
G201
G201
IG Fuse
IG Fuse