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

Module Power, Ground, Data Communication


Object Number: 2150499  Size: FS
Master Electrical Component List
Transmission Component and System Description
Control Module References
Pressure and Shift Controls
Ignition Switch and IGN MAIN Relay
RUN/CRANK BUS - MAF, PCM, IGN, SIR DISPLAY and TRANS Fuses
Cruise Control Schematics
ABS, ABS MTR, AUX PWR, AWD, ECMBAT, PWR OUTLET, REAR APO, REAR HVAC, and TCM BAT Fuses
High Speed GMLAN
G103, G105, G107, G108, and G109
Figure 2:

Pressure and Shift Controls


Object Number: 2150501  Size: FS
Master Electrical Component List
Transmission Component and System Description
Control Module References
ISS, OSS, TFP, TFT
Module Power, Ground and Data Communication
Figure 3:

ISS, OSS, TFP, TFT


Object Number: 2150503  Size: FS
Master Electrical Component List
Transmission Component and System Description
Control Module References
IMS and Tap Up/Tap Down
Pressure and Shift Controls
Figure 4:

IMS and Tap Up/Tap Down


Object Number: 2150506  Size: FS
Master Electrical Component List
Transmission Component and System Description
Control Module References
ISS, OSS, TFP, TFT
Remote Radio Steering Wheel Controls (UK3)