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

Shift Controls and Stop Lamp Switch


Object Number: 1805051  Size: FS
Master Electrical Component List
Electronic Component Description
Control Module References
Pressure Controls, Temperature, and VSS
Ignition Switch - ACY/RUN/START, RUN and Start Bus Bars, and CRANK and IGN A Fuses
4WD, BRAKE, CRUISE, HVAC 1, and IGN 3 Fuses
Ignition Switch - ACY/RUN/START, RUN and Start Bus Bars, and CRANK and IGN A Fuses
IGN 0, RR WPR, SEO ACCY, TBC ACCY, TBC IGN 0, and WS WPR Fuses
Figure 2:

Pressure Controls, Temperature, and VSS


Object Number: 1805053  Size: FS
Master Electrical Component List
Electronic Component Description
Control Module References
PNP Switch, 4WD Signal, Serial Data, and Indicator
Shift Controls and Stop Lamp Switch
Automatic Transmission Schematic Icons
Figure 3:

PNP Switch, 4WD Signal, Serial Data, and Indicator


Object Number: 1805139  Size: FS
Master Electrical Component List
Electronic Component Description
Control Module References
Pressure Controls, Temperature, and VSS
Power, Ground, DLC and Splice Pack SP205
G103 and G103
07 H2 Interior Lights Dimming Schematics - Instrument Panel Dimming - 2 of 5
G203 - 2 of 3