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

Cruise Control Module (CCM) Power and Ground


Object Number: 879912  Size: FS
Master Electrical Component List
Cruise Control Description and Operation
Cruise Control Schematics-PCM Controls and Class 2
SIR Handling Caution
Power Distribution Schematics-Battery Feed to Fuseblock Underhood
Power Distribution Schematics-IGN 1 Relay,SIR,Vent Sol and Ignition 1 Fuses
Power Distribution Schematics-IGN 1 Relay,SIR,Vent Sol and Ignition 1 Fuses
Power Distribution Schematics-IGN 1 Relay,SIR,Vent Sol and Ignition 1 Fuses
Automatic Transmission Controls Schematics-TCC/Cruise Rel. Switch,Solenoids
Gound Distribution Schematics-G101 and G105
Ground Distribution Schematics-G200
Figure 2:

PCM Controls and Class 2


Object Number: 1220930  Size: FS
Master Electrical Component List
Cruise Control Description and Operation
Cruise Control Schematics-Cruise Control Module (CCM) Power and Ground
Power Distribution Schematics-Cigar Relay and Stop LP, Cigar, HVAC BLO Fuses
Exterior Lights Schematics-Stop Lamp Switch
Exterior Lights Schematics-Stop Lamp Switch
ABS Schematics-Power,Ground,Stop Lamp Switch,Solenoid Valves and Pump Motor
Data Link Connector (DLC) Schematics-Serial Data Line (LH Drive) (1 of 2)
Instrument Cluster Schematics-PCM Signals