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

Power, BCM, PCM, Class 2, Stop Lamp Switch, Tow/Haul Switch, and Shift Solenoids


Object Number: 832053  Size: FS
Master Electrical Component List
Electronic Component Description
Fluid Pressure Switch, TFT Sensor, PC Solenoid Valve, Transfer Case Control Module, and Vehicle Speed Sensor
OBD II Symbol Description Notice
Illumination - Rear Window, Garage Door Opener, Sunroof, HVAC Control, Headlamp, and Tow/Haul Switches
Power, Ground, DLC, and Splice Pack SP205
BRAKE, 4WD, CRUISE, HVAC I, and IGN 3 Fuses
WS WPR, SEO ACCY, RR WPR, and TBC ACCY Fuses
WS WPR, SEO ACCY, RR WPR, and TBC ACCY Fuses
Power, Ground, DLC, and Splice Pack SP205
CKT 1050, S203, S215, S302, S303, and S351
CKT 1050, S213 and S301
CKT 1050, S203, S215, S302, S303, and S351
Figure 2:

Fluid Pressure Switch, TFT Sensor, PC Solenoid Valve, Transfer Case Control Module, and Vehicle Speed Sensor


Object Number: 832054  Size: FS
Master Electrical Component List
Electronic Component Description
Transmission Range Display
Power Windows and Door Locks, HVAC, and A-T Controls
OBD II Symbol Description Notice
Automatic Transmission Schematic Icons
Figure 3:

Transmission Range Display


Object Number: 832056  Size: FS
Master Electrical Component List
Electronic Component Description
Interior Lights, Horns, Entertainment, amd Theft Deterrent
G102 and G103
Power, Ground, DLC, and Splice Pack SP205