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

Engine Cranking


Object Number: 652717  Size: FS
Master Electrical Component List
Starting System Description and Operation
Charging Control and Indicator
ABS/PCM, SRS, STOP, and TURN SIGNAL Fuses
A/C/CRUISE, A/C FAN, CRUISE, PCM/BCM/CLSTR, and PCM (CRANK) Fuses
ABS/PCM, SRS, STOP, and TURN SIGNAL Fuses
Fuse Block-SEO and Fusible Links
Fuse Block-SEO and Fusible Links
Charging Control and Indicator
G100, G111, G113 (1 of 2), G117, and G151
DLC Schematics
Figure 2:

Charging Control and Indicator


Object Number: 652718  Size: FS
Master Electrical Component List
Charging System Description and Operation
Load Management
Engine Cranking
Junction Block-Underhood (Top) Bussing
Engine Cranking
Figure 3:

Load Management


Object Number: 808817  Size: FS
Master Electrical Component List
Load Shed System Description and Operation
Charging Control and Indicator
HTD MIR, RADIO, and RT IP#3 Fuses, REAR DEFOG Circuit Breaker, and REAR DEFOG Relay
Driver Seat (Impala)
Heated Mirrors
Defogger Schematics