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

Starting


Object Number: 1582462  Size: FS
Master Electrical Component List
Starting System Description and Operation
Control Module References
Charging
RUN/CRANK, HVAC Relays, I/P, IGN, BCM3, WIPER, I/P IGN Fuses
RUN/CRANK Relay, I/P IGN, BACKUP, ABS, ECM, TRANS, LIGHTING, S-BAND, MIRROR, ABS, EPS, BCM2, BCM3, HEATED SEATS Fuses
Underhood Fuse Block, B+ Bus
Figure 2:

Charging


Object Number: 1582463  Size: FS
Master Electrical Component List
Charging System Description and Operation (w/RVC)
Control Module References
Starting
DLC Power, Ground, and Low Speed GMLAN
High Speed GMLAN
Underhood Fuse Block, B+ Bus