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

Starting - L26


Object Number: 1645536  Size: FS
Master Electrical Component List
Starting System Description and Operation
Control Module References
Starting - LY7
G101, G102, G103, G111, G112, and G113
Fuse Block - Underhood ABS, TRANS SOL, PCM, SIR, and DISPLAY Fuses, CRANK Relay, and Fuse Block - I/P CRUISE SW Fuse
Ignition Switch
Data Link Connector (DLC) Schematics L26
Fuse Block - Underhood ABS, TRANS SOL, PCM, SIR, and DISPLAY Fuses, CRANK Relay, and Fuse Block - I/P CRUISE SW Fuse
G101, G102, G103, G111, G112, and G113
Keyless Entry Schematics
Turn Signal, Hazard and Stop Lamps Inputs
Fuse Block - Underhood B+ Bus
G101, G102, G103, G111, G112, and G113
G101, G102, G103, G111, G112, and G113
G101, G102, G103, G111, G112, and G113
G101, G102, G103, G111, G112, and G113
Figure 2:

Starting - LY7


Object Number: 1645538  Size: FS
Master Electrical Component List
Starting System Description and Operation
Control Module References
Charging
Starting - L26
G115 (LY7)
Fuse Block - Underhood ABS, TRANS SOL, PCM, SIR, and DISPLAY Fuses, CRANK Relay, and Fuse Block - I/P CRUISE SW Fuse
Ignition Switch
Data Link Connector (DLC) Schematics LY7
Fuse Block - Underhood ABS, TRANS SOL, PCM, SIR, and DISPLAY Fuses, CRANK Relay, and Fuse Block - I/P CRUISE SW Fuse
Keyless Entry Schematics
Turn Signal, Hazard and Stop Lamps Inputs
G101, G102, G103, G111, G112, and G113
Fuse Block - Underhood B+ Bus
G101, G102, G103, G111, G112, and G113
G115 (LY7)
G101, G102, G103, G111, G112, and G113
G101, G102, G103, G111, G112, and G113
Figure 3:

Charging


Object Number: 1645537  Size: FS
Master Electrical Component List
Charging System Description and Operation
Control Module References
Starting - LY7
Fuse Block - Underhood B+ Bus
I/P, Console, and Driver Door Lighting
Data Link Connector (DLC) Schematics L26
Data Link Connector (DLC) Schematics LY7
G101, G102, G103, G111, G112, and G113
G101, G102, G103, G111, G112, and G113