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

Power, Ground, Clock


Object Number: 1649802  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Indicators
Underhood Fuse Block B+ Bus
Underhood Fuse Block B+ Bus
Rear Fuse Block B+ Bus
Rear Fuse Block B+ Bus
Underhood Fuse Block - RUN/CRANK Relay, TRANS IGN 3, AIRBAG IGN 3, HVAC/IPC, ECM IGN 3 Fuses
Rear Fuse Block - PRK LAMP, RT PRK LAMP (Export), EXP LIC LAMP (Export) Relays, I/P HARN MDL, LT PRK LAMP, RT PRK LAMP Fuses
DLC Power, Ground, and Low Speed GMLAN
Hazard, Headlamp, Driver Information Display Switches, Ashtray, HVAC Control Module, Radio, Clock
G100, G112
G300
G304
Figure 2:

Indicators


Object Number: 1615476  Size: FS
Master Electrical Component List
Indicator/Warning Message Description and Operation
Control Module References
Inflatable Restraint I/P Module Indicator, Telltale Assembly Info Center, Driver Information Display
Power, Ground, Clock
DLC Power, Ground, and Low Speed GMLAN
G300
Outside Moisture Sensor and Windshield Washer Solvent Heater
Power, Ground, MIL and DLC
Brake Warning
Figure 3:

Inflatable Restraint I/P Module Indicator, Telltale Assembly Info Center, Driver Information Display


Object Number: 1615478  Size: FS
Master Electrical Component List
Driver Information Center (DIC) Description and Operation
Control Module References
Oil Level, EOP, Fuel Level Sensor
Indicators
G300
Hazard, Headlamp, Driver Information Display Switches, Ashtray, HVAC Control Module, Radio, Clock
Figure 4:

Oil Level, EOP, Fuel Level Sensor


Object Number: 1615479  Size: FS
Master Electrical Component List
Audible Warnings Description and Operation
Control Module References
Inflatable Restraint I/P Module Indicator, Telltale Assembly Info Center, Driver Information Display
DLC High Speed Serial Data
G100, G112
Fuel Controls