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

Power and Grounds


Object Number: 783084  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Indicators and Serial Data
LH BFC BATT 2, STOP LPS, HAZARD LPS, IPC/HVAC BATT, BFC BATT Fuses
IGN BATT, IGN SW BATT2, Ignition Switch
LH BFC BATT 2, STOP LPS, HAZARD LPS, IPC/HVAC BATT, BFC BATT Fuses
IGN BATT, IGN SW BATT2, Ignition Switch
Turn Signal and Hazard Switch
Panel Dimming
SP202
Figure 2:

Indicators and Communication


Object Number: 783081  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Power and Communications
EVAP and Fuel Controls
PCM Powers and Grounds
SP102
Data Link Communication