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

Shift Controls and Stop Lamp Switch


Object Number: 1778185  Size: FS
Master Electrical Component List
Electronic Component Description
Control Module References
Pressure Controls, Temperature, and VSS
Automatic Transmission Schematic Icons
Ignition Switch - START, RUN, and ACC/RUN/START BUS BARS, IGN A, and CRNK Fuses
4WD, BRK, CRUISE, HTR/AC, and HVAC 1 Fuses
4WD, BRK, CRUISE, HTR/AC, and HVAC 1 Fuses
Ignition Switch - START, RUN, and ACC/RUN/START BUS BARS, IGN A, and CRNK Fuses
IGN 0, RR WPR, SEO ACCY, TBC ACCY, TBC IGN 0, and WS WPR Fuses
IGN 0, RR WPR, SEO ACCY, TBC ACCY, TBC IGN 0, and WS WPR Fuses
4WD, BRK, CRUISE, HTR/AC, and HVAC 1 Fuses
Figure 2:

Pressure Controls, Temperature, and VSS


Object Number: 1778192  Size: FS
Master Electrical Component List
Electronic Component Description
Control Module References
PNP Switch, 4WD Signal, Tow/Haul. Serial Data, and Indicator
Shift Controls and Stop Lamp Switch
Automatic Transmission Schematic Icons
Automatic Transmission Schematic Icons
Automatic Transmission Schematic Icons
Figure 3:

PNP Switch, 4WD Signal, Tow/Haul, Serial Data, and Indicator


Object Number: 1778193  Size: FS
Master Electrical Component List
Electronic Component Description
Control Module References
Pressure Controls, Temperature, and VSS
Automatic Transmission Schematic Icons
G203 - 2 of 2
Power, Ground, DLC and Splice Pack SP205
G103 and G106 - Gas