GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2006 🢒 Envoy - 2WD 🢒 Driveline/Axle 🢒 Transfer Case - NVG 226-NP8 🢒 Transfer Case Control Schematics
Figure 1:

Power, Ground, Serial Data, and Transfer Case Encoder Motor
Object Number: 1594128 Size: FS
Master Electrical Component List
Transfer Case Description and Operation
Control Module References
Speed Signal, Front Axle Actuator, and Indicators
Underhood Fuse Block
SP205
G102
G104, G105, and G107
Figure 2:

Speed Signal, Front Axle Actuator and Indicators
Object Number: 1594130 Size: FS
Master Electrical Component List
Transfer Case Description and Operation
Control Module References
Power, Ground, Serial Data, and Transfer Case Encoder Motor
Courtesy Lamp Supply
Ignition Switch - ACCY/RUN/START, RUN, and START Bus Bars, IGN A and CRNK Fuses
4WD, AIRBAG, ECMI, HVAC, and TRANS Fuses
4WD, AIRBAG, ECMI, HVAC, and TRANS Fuses
G104, G105, and G107