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

Power and Ground


Object Number: 834514  Size: FS
Master Electrical Component List
Cruise Control Description and Operation
CCM, PCM Controls and Vehicle Speed Input
Battery Feed to the Fuse Block-Rear
Car Battery Feed to the Fuse Block-Underhood
IGN-1, VENT SOL, SIR Fuses and IGN 1 Relay (Fuse Block-Rear)
Transmission Solenoids
G106, G107, and G101
Figure 2:

CCM, PCM Controls and Vehicle Speed Input


Object Number: 863369  Size: FS
Master Electrical Component List
Cruise Control Description and Operation
Power and Ground
TSIG/HAZ, STOP LAMP, AUDIO and CD Fuses, Rear Fuse Block
Battery Feed to the Fuse Block-Rear
Power, Ground, Stoplamp Switch, Solenoid Valves, and Pump Motor
Tail/Stop Lamps