GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2000 🢒 Envoy - 4WD 🢒 Body and Accessories 🢒 Wiring Systems 🢒 Transfer Case Control Component Views
Figure 1:

IP Center Switch
Object Number: 203286 Size: LF
(1)Instrument Panel (IP)
(2)Transfer Case Shift Control Switch
(3)Inflatable Restraint IP Module Switch (Pickup)
(4)Rear Wiper/Washer and Endgate/Liftgate Window Release Switch (Utility)
(5)Transfer Case Shift Control Switch Connector C2
(6)Transfer Case Shift Control Switch Connector C1
Figure 2:

Transfer Case Shift Control Module
Object Number: 203290 Size: LF
(1)Right Side Cowl Panel
(2)Transfer Case Shift Control Module Connector (Not Used on Selectable)
(3)Transfer Case Shift Control Module Connector
(4)Transfer Case Shift Control Module
Figure 3:

Tranfer Case (NP1) Harness Routing View
Object Number: 580982 Size: LF
(1)Electric Shift Transfer Case Harness
(2)Transfer Case Encoder Motor Connector
(3)Electric Shift Transfer Case (NP1)
Figure 4:

Front Axle Switch
Object Number: 203303 Size: LF
(1)Four-Wheel Drive Indicator Switch
(2)Front Axle