GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Generic 🢒 2005 🢒 Unit Repair 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 Starting and Charging Schematics
Figure 1:

Starting System
Object Number: 1457406 Size: FS
Master Electrical Component List
Starting System Description and Operation
Control Module References
Charging System
Underhood Fuse Block IBCM 1, Body Control Module (BCM) RADIO, IGN SENSOR, HVAC HEAD/ECC, CLUSTER/THEFT and AIR BAG BATT Fuses
Door Lock Switches
Keyless Entry Schematics
Ambient Light Sensor, Brake Pedal Position Sensor, Hazard Switch and Turn Signal/Multifunction Switch
Power, Ground, Class2 and High Speed Serial Data
G101 and G102
G103, G104 and G105
G109
Figure 2:

Charging System
Object Number: 1457411 Size: FS
Master Electrical Component List
Charging System Description and Operation
Control Module References
Starting System
Underhood Fuse Block B+ Bus
Low Speed Serial Data
Power, Ground, Class2 and High Speed Serial Data
G103, G104 and G105