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

Power, Ground, and Class 2


Object Number: 642216  Size: FS
PCM Signals
Instrument Panel, Gages, and Console Component Views
Instrument Cluster Description and Operation
Battery Feeds
IGN 1 Fuse
EXPORT BRK, PCM BATT, I/P, and ABS Fuses
G200
G200
Engine Coolant Temperature Indicator
Washer Solvent Level Switch
Figure 2:

PCM Signals


Object Number: 642217  Size: FS
Power, Ground, and Class 2
PCM and IPM Signals
Instrument Panel, Gages, and Console Component Views
Indicator/Warning Message Description and Operation
Class 2 Serial Data Line (LH Drive) (1 of 2)
Fuel Pump and MIL
Figure 3:

PCM and IPM Signals


Object Number: 642218  Size: FS
PCM Signals
DIM, RIM, PCM, and SDM Signals
Instrument Panel, Gages, and Console Component Views
Indicator/Warning Message Description and Operation
Battery Feeds
IGN 1 Fuse
Indicators and Traction Control Switch
Brake Warning System
Park Brake Release
Class 2 Serial Data Line (LH Drive) (1 of 2)
Fuel Pump and MIL
G106 and G108
G106 and G108
Figure 4:

DIM, RIM, PCM, and SDM Signals


Object Number: 642220  Size: FS
PCM and IPM Signals
Driver Information Center (DIC)
Instrument Panel, Gages, and Console Component Views
Indicator/Warning Message Description and Operation
Class 2 Serial Data Line (LH Drive) (1 of 2)
Hazard Switch
Hazard Switch
Figure 5:

Driver Information Center (DIC)


Object Number: 642221  Size: FS
DIM, RIM, PCM, and SDM Signals
Instrument Panel, Gages, and Console Component Views
Driver Information Center (DIC) Description and Operation
G200
G201 (3 of 3)
G200
G201 (3 of 3)