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

Power and Ground
Object Number: 2075211 Size: FS
Figure 2:

Shift Control and Indicators
Object Number: 2075213 Size: FS
Figure 3:

Encoder Motor and Serial Data
Object Number: 2075218 Size: FS
Figure 4:

Front Axle Actuator and Speed Sensors
Object Number: 2075220 Size: FS