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

Power, Ground, Class 2 Data Line and Gages


Object Number: 797078  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Hardwire Indicators
BATT Main 1, CLUSTER BATT, RR PWR SCKT, PWR LOCK, RAP RELAY, CTSY LAMP, ONSTAR, CIGAR DLC/APO FRT and PWR MIRROR fuses
IGN1, SDM, T/SIG, CRUISE, PCM PASSKEY/CLUSTER fuses
IGN1, SDM, T/SIG, CRUISE, PCM PASSKEY/CLUSTER fuses
IGN1, SDM, T/SIG, CRUISE, PCM PASSKEY/CLUSTER fuses
IGN Main2, BCM PRGRM, RR WPR/WSHR, MALL/CLUSTER, FRT/WPR/WSHR fuses
IGN Main2, BCM PRGRM, RR WPR/WSHR, MALL/CLUSTER, FRT/WPR/WSHR fuses
G200
Retained Accessory Power (RAP)
Interior Lights On Request and Horn Control
Data Link Connector (DLC)
Rear Object Sensor Control Module, Power and Ground
Figure 2:

Hardwire Indicators


Object Number: 797080  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Class 2 Telltales
Power, Ground, Class 2 Data Line and Gauges
IP DOOR AJAR Telltale
IP REAR HATCH AJAR Telltale
Figure 3:

Class 2 Telltales


Object Number: 797079  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Sensors and Switches Schematics
Hardwire Indicators
Tail Lamps, Side Markers and Park/Turn Lamps
Headlamps
Tail Lamps, Side Markers and Park/Turn Lamps
Heater-A/C Control Switches and Instrument Cluster
G200
Seat Belt
Brake Warning System
Brake Warning System
Power, Ground, MIL, DLC Figure
Hazard Lamp/Turn Signal Flasher and Turn Signal Switch
Rear Fog Lights
Fog Lights
Figure 4:

Sensors and Switches


Object Number: 797161  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Class 2 Telltales
Fuel Control Figure
G100, G111, G113
Daytime Running Lamp Control Module