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

Module Power, Ground, and Serial Data


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Figure 2:

Shift Controls


Object Number: 2074961  Size: FS
Figure 3:

Pressure and Temperature Controls


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Figure 4:

PNP Signals, VSS Signals, and Tow/Haul Signal


Object Number: 2074968  Size: FS