GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2004 🢒 Yukon - 4WD 🢒 Driveline/Axle 🢒 Transfer Case - BW 4482-NR4 🢒 Transfer Case Control Schematics
Figure 1:

Power, Ground, Serial Data and Encoder Motor Control
Object Number: 1251266 Size: FS
Master Electrical Component List
Transfer Case Description and Operation
Switch
B+ Bus - 1 of 2
HVAC/ECAS, RR HVAC, BLOWER, RR DEFOG, STOP LP, TREC Fuses
SP205 - 1 of 2
G110
Figure 2:

Switch
Object Number: 1251267 Size: FS
Master Electrical Component List
Transfer Case Description and Operation
Power, Ground, Serial Data and Encoder Motor Control
Ignition Switch - START, and RUN Bus Bars
BRAKE, HTR/AC, HVAC I, CRUISE, 4WD Fuses
LED Dimming Supply Voltage - 2 of 2