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

Starting


Object Number: 1346306  Size: FS
Master Electrical Component List
Charging
Fuse Block - Underhood B+ Bus, 1 of 2
Figure 2:

Charging


Object Number: 1503253  Size: FS
Master Electrical Component List
Starting
Fuse Block - Underhood B+ Bus, 1 of 2
Fuse Block - Underhood ENGINE MAIN, ENG 1, ENG 2, HEATING MAT Fuses, ENGINE and HEADLAMP Relays (MR-140)
Fuse Block - I/P CLUSTER, AIR BAG, TURN SIGNAL, CRUISE Fuses (LHD)