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

Starting Controls


Object Number: 1220883  Size: FS
Master Electrical Component List
Starting System Description and Operation
Starting and Charging Schematics-Generator Controls
Power Distribution Schematics-Battery Feed to Fuse Block Rear
Power Distribution Schematics-Battery Feed to Fuseblock Underhood
Power Distribution Schematics-Battery Feed to Fuseblock Underhood
Power Distribution Schematics-Ignition Switch Supply
Power Distribution Schematics-Battery Feed to Fuseblock Underhood
Ground Distribution Schematics-G303,G304,G306,G307
Engine Controls Schematics-Controlled/Monitored Subsystem References
Figure 2:

Generator Controls


Object Number: 1220892  Size: FS
Master Electrical Component List
Charging System Description and Operation
Starting and Charging Schematics-Starting Controls
Data Link Connector (DLC) Schematics-Serial Data Line (LH Drive) (1 of 2)
Power Distribution Schematics-Battery Feed to Fuse Block Rear
Data Link Connector (DLC) Schematics-Serial Data Line (LH Drive) (1 of 2)
Power Distribution Schematics-Battery Feed to Fuseblock Underhood