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

Cranking


Object Number: 946676  Size: FS
Master Electrical Component List
Starting System Description and Operation
Charging
Fuse Block-Underhood Bussing
Fuse Block-Underhood Bussing
Fuse Block-Underhood Fuses; BATT3 and STOP/B/U/LPS, BCM Fuses; BTSI SOL/COL LOCK, PWR FLDG MIR-EXT/RET, RADIO/ANT/VICS, REAR FOG/ALDL TOP SW, and REVERSE LAMPS
Class 2
BCM Fuses; A.C.LATCH/PK BRK B, CLUSTER, DOOR LOCKS, HVAC/PWR SND, INTERIOR LIGHTS, ISRVM/HVAC, and TUTD SW/STRG COL SW
BCM Fuses; ECM, GMLAN DEVICES, RPA / H/C SEAT, and SDM/PSIR SW, Fuse Block-Underhood Fuses; ABS/MRRTD, and ACC/TCM
GMLAN
Fuse Block-Underhood Bussing
BCM Fuses; ECM, GMLAN DEVICES, RPA / H/C SEAT, and SDM/PSIR SW, Fuse Block-Underhood Fuses; ABS/MRRTD, and ACC/TCM
GMLAN
Brake Pedal Signal, and Traction Control Switch
IMS, ISS, Solenoids, TFT, and VSS
Figure 2:

Charging


Object Number: 946680  Size: FS
Master Electrical Component List
Charging System Description and Operation
Cranking
Fuse Block-Underhood Bussing
Class 2
GMLAN
Fuse Block-Underhood Bussing