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

Power, Ground, A/T Shift Lock Control, Audible Warnings, DLC, Engine Controls, RAP, Starting and Charging References


Object Number: 1488968  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
ABS, Body Rear End, Brake Warning System, Defogger, Driver Seat, Horns, Keyless Entry, Passenger Seat, Theft Deterrent and Wiper/Washer System References
Fuse Block - Underhood BATT MAIN 1 Fuse, Fuse Block - I/P PK LAMPS, DISPLAYS, CHMSL/BKUP, INT LIGHT, RFA/MOD, RADIO/AMP, ONSTAR/ALDL, HVAC, and CANISTER Fuses and PK LP Relay
Fuse Block - Underhood BATT MAIN 2 Fuse, Fuse Block - I/P HTD SEAT, PWR MIRS, TURN/HAZ, DR LK/TRUNK, PRKSW, and SUN ROOF Fuses, PWR SEAT and PWR WDO Circuit Breakers, and RAP Relay
Fuse Block - Underhood B+ Bus
Retained Accessory Power (RAP) Schematics
LY7
Multifunction Alarm Module, Courtesy Switches
Ignition Switch
Module Power, Ground, Serial Data, and MIL
Module Power, Ground, Serial Data, and MIL
L26
LY7
Audible Warnings Schematics
Starting - L26
Starting - LY7
Charging
G201
G200
G301
Figure 2:

ABS, Body Rear End, Brake Warning System, Defogger, Driver Seat, Horns, Keyless Entry, Passenger Seat, Theft Deterrent and Wiper/Washer System References


Object Number: 1488969  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
Door/Lock Indicator, Fog Lights, Headlights/DRL, Interior Lights, OnStar and Rear Parking Assist References
Power, Ground, A/T Shift Lock Control, Audible Warnings, DLC, Engine Controls, RAP, Starting and Charging References
Content Theft Deterrent (CTD) System
Vehicle Theft Deterrent (VTD) System
Keyless Entry Schematics
Body Rear End Schematics
Horns Schematics
Indicators, Stop Lamp, Traction Controls, and Serial Data
Brake Warning System Schematics
Defogger Schematics
Heat Controls
Heat Controls
Wiper/Washer System Schematics
Figure 3:

Door/Lock Indicator, Fog Lights, Headlights/DRL, Interior Lights, OnStar and Rear Parking Assist References


Object Number: 1488971  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
Exterior Lights and Interior Lights References
ABS, Body Rear End, Brake Warning System, Defogger, Driver Seat, Horns, Keyless Entry, Passenger Seat, Theft Deterrent and Wiper/Washer System References
Ajar Indicators
Switches
Actuators
Headlights/Daytime Running Lights (DRL) Schematics
Power, Ground, Serial Data, Antennas, and Voice Recorder
Fog Lights Schematics
I/P, Console, and Driver Door Lighting
Rear Parking Assist Schematics
Exterior Lights and Interior Lights References
Figure 4:

Exterior Lights and Interior Lights References


Object Number: 1488972  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
Door/Lock Indicator, Fog Lights, Headlights/DRL, Interior Lights, OnStar and Rear Parking Assist References
Park Lamps
Turn Signal, Hazard, and Stop Lamps Inputs
Turn Signal, Hazard, and Stop Lamps Outputs
Shift and TCC Solenoid Valves, TFT Sensor, and Stop Lamp Switch (LY7)
L26
Indicators, Stop Lamp, Traction Controls, and Serial Data
L26
Turn Signal, Hazard, and Stop Lamps Inputs
Door/Lock Indicator, Fog Lights, Headlights/DRL, Interior Lights, OnStar and Rear Parking Assist References
Turn Signal, Hazard, and Stop Lamps Inputs
Backup and License Lamps
Lamp Controls
Courtesy Lamps