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

Starting


Object Number: 1219191  Size: FS
Master Electrical Component List
Starting System Description and Operation
Charging
Ignition Switch - ACC/RUN/START, ACC/RUN, and RUN/START Bus Bars
IGN E Fuse
Ignition Switch - START, and RUN Bus Bars
B+ Bus - 1 of 2
Charging
B+ Bus - 1 of 2
G100, G101, G105, G106
G100, G101, G105, G106
Ignition Switch - START, and RUN Bus Bars
Figure 2:

Charging


Object Number: 1219193  Size: FS
Master Electrical Component List
Charging System Description and Operation W/O Generator/Battery Control Module
Starting
G100, G101, G105, G106
B+ Bus - 1 of 2
SP205 - 1 of 2
SP205 - 2 of 2