GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2005 🢒 Envoy - 4WD 🢒 Driveline/Axle 🢒 Transfer Case - NVG 226-NP8 🢒 Transfer Case Control Schematics
Figure 1:

Power, Ground, Serial Data, and Transfer Case Encoder Motor
Object Number: 1412995 Size: FS
Master Electrical Component List
Transfer Case Description and Operation
Control Module References
Speed Signal, Front Axle Actuator, and Indicators
B+ Bus - Underhood Fuse Block
SP205
G201 - 1 of 2
G104, G105, and G107
Figure 2:

Speed Signal, Front Axle Actuator, and Indicators
Object Number: 1412996 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 - 2 of 2
Ignition Switch - ACCY/RUN/START, RUN, and START Bus Bars, IGN A and CRANK Fuses
Transfer Case Control Schematic Icons
4WD, ENG I, HVAC, O2, SIR, and TAC Fuses
G102
G104, G105, and G107