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

Engine Cranking


Object Number: 1406931  Size: FS
Master Electrical Component List
Charging Control, Indicator
Fuse Block Underhood Fuse: 27, 31, 33 Fuse Block Center Console
Transaxle Range Switch and VSS
Fuse Block-Underhood Fuse: 47, Fuse Block Cent Console Fuses
Fuse Block-Underhood Fuse: 47, Fuse Block Cent Console Fuses
Fuse Block - Underhood Buss
Ground G111 - Buick
Ground G111 - Buick
Ground G111 - Buick
Ground G100 - Buick
Figure 2:

Charging Control, Indicator


Object Number: 1499559  Size: FS
Master Electrical Component List
Charging System Description and Operation
Engine Cranking
B+ Bus - 1 of 2
Data Link Connector (DLC) Schematics
Ground G111 - Buick
Ground G100 - Buick