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

Starting


Object Number: 1903881  Size: FS
Master Electrical Component List
Starting System Description and Operation
Control Module References
Charging
Fuse Block 1: Fuse 5 and Fuse Block I/P 1: Circuit Breakers 5, 9 - 1 of 2, and 10
Fuse Block 1: Fuse 5 and Fuse Block I/P 1: Circuit Breakers 5, 9 - 1 of 2, and 10
Module Power, Ground, Serial Data, and MIL
G400 - 7 of 8
Electronic Brake Control Module (EBCM), Power Brake (P/B) Booster Pump Motor, Relays and Switches
Fuse Block 2: Fuse 10, Fuse Block I/P 1: Circuit Breaker 1, and Ignition Switch ACCY/RUN, RUN START, and START Bus Bars
Figure 2:

Charging


Object Number: 1903883  Size: FS
Master Electrical Component List
Charging System Description and Operation
Control Module References
Starting
Fuse Block I/P 1: Circuit Breaker 6
Fuse Block I/P 1: Circuit Breaker 6
Fuse Block I/P 1: Circuit Breaker 6
Driver Information Center (DIC)
Headlights/Daytime Running Lights 1 of 2