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

Module Power, Ground, and Serial Data


Object Number: 1906876  Size: FS
Master Electrical Component List
Transmission Component and System Description
Control Module References
Shift Controls
RUN/CRANK Bus - AIRBAG IGN, MISC IGN and SEO/ALC Fuses
Stop Lamp Controls and CHMSL
RUN/CRANK Bus - ECM-IGN and TRANS IGN 1 Fuses
Serial Data Communication Enable and Wake-up Circuits
Stop Lamp Controls and CHMSL
G102, G104, and G108
G103, G110 and G111
HIgh Speed Bus - 1 of 2
Figure 2:

Shift Controls


Object Number: 1906879  Size: FS
Master Electrical Component List
Transmission Component and System Description
Control Module References
Pressure and Temperature Controls
Module Power, Ground, and Serial Data
RUN/CRANK Bus - ECM-IGN and TRANS IGN 1 Fuses
Figure 3:

Pressure and Temperature Controls


Object Number: 1906883  Size: FS
Master Electrical Component List
Transmission Component and System Description
Control Module References
PNP Signals, VSS Signal, and Tow/Haul Signal
Shift Controls
Figure 4:

PNP Signals, VSS Signals, and Tow/Haul Signal


Object Number: 1906885  Size: FS
Master Electrical Component List
Transmission Component and System Description
Control Module References
Pressure and Temperature Controls
Data Communication Schematics
G103, G110 and G111
G201