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

Starting System


Object Number: 1747995  Size: FS
Master Electrical Component List
Starting System Description and Operation
Control Module References
Charging System
Ignition Switch - ACCY/RUN, RUN/START Bus Bars and IGN B Fuse
BCK/UP, BTSI, IGN E, TBC IGN 1, and TRLR BCK/UP Fuses
B+ Bus - Underhood Fuse Block
B+ Bus - Underhood Fuse Block
Figure 2:

Charging System


Object Number: 1747997  Size: FS
Master Electrical Component List
Charging System Description and Operation
Control Module References
Starting System
SP205
B+ Bus - Underhood Fuse Block
B+ Bus - Underhood Fuse Block
SP205
G108