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

Body Control Module, Power and Ground


Object Number: 675207  Size: FS
Master Electrical Component List
Theft Systems Description and Operation
Vehicle Theft Deterrent (UTD) System
EBCM, BATT Main 1, RADIO and PARK LP Fuses
Door Locks, Sliding Door Jamb Switches and Liftgate Door Lock
Door Lock Switches
Key Cylinder Switches
Door Lock Switches
BCM, Instrument Cluster and Grounds
EBCM, BATT Main 1, RADIO and PARK LP Fuses
G200
Horns
Park Brake Indicator Switch and DRL Ambient Light Sensor
Figure 2:

Pass Key III Module


Object Number: 675238  Size: FS
Master Electrical Component List
Theft Systems Description and Operation
Content Theft Deterrent (CTD) System
IGN1, SDM, T/SIG, CRUISE, PCM PASSKEY/CLUSTER fuses
IGN1, SDM, T/SIG, CRUISE, PCM PASSKEY/CLUSTER fuses
Underhood Accessory Wiring Junction Block, STOP LAMP, HAZARD, PASSKEY, FRT HVAC HI BLWR and HEADLAMP circuit breaker
Data Link Connector (DLC)
G200