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

Starting System


Object Number: 834326  Size: FS
Master Electrical Component List
Starting System Description and Operation
Charging System
O2A, O2B, TBC IGN 1, SEO IGN
B+ Bus Bar - 1 of 2
Power, Ground, DLC, and Vehicle Speed
G100, G101, G105, G106
Figure 2:

Charging System


Object Number: 834327  Size: FS
Master Electrical Component List
Charging System Description and Operation W/O Generator/Battery Control Module
Starting System
B+ Bus Bar - 1 of 2
B+ Bus Bar - 1 of 2
SP205 - 1 of 2
G100, G101, G105, G106