GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 Yukon XL - 4WD 🢒 Power and Signal Distribution 🢒 Data Communications 🢒 Automatic Transmission Controls Schematics
Figure 1:

Module Power, Ground, and Serial Data
Object Number: 2074954 Size: FS
Figure 2:

Shift Controls
Object Number: 2074961 Size: FS
Figure 3:

Pressure and Temperature Controls
Object Number: 2074965 Size: FS
Figure 4:

PNP Signals, VSS Signals, and Tow/Haul Signal
Object Number: 2074968 Size: FS