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

Power, Ground, and DLC


Object Number: 671319  Size: FS
Master Electrical Component List
Fault Indicators
Power, Ground, and References
RH HDLP, LH HDLP, GEN BATT, LH BEC BATT 2, STOP LPS, HAZARD LPS, IPC/HVACBATT, BFC BATT Fuses
Data Link Connector Schematics
G202
Figure 2:

Fault Indicators


Object Number: 671323  Size: FS
Master Electrical Component List
Power, Ground, and DLC
Oil Pressure and Level Switch
Instrument Panel Lamps
Hazard Switch
Figure 3:

Oil Pressure and Level Switch


Object Number: 729613  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Fault Indicators
G102 and G104
Engine Data Sensors
Engine Data Sensors