GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2004 🢒 Blazer - 4WD 🢒 Driveline/Axle 🢒 Transfer Case - NVG 233-NP1 🢒 Transfer Case Control Component Views
Figure 1:

Center I/P Switches
Object Number: 1004323 Size: LF
(1)Instrument Panel (I/P)
(2)Transfer Case Shift Control Switch
(3)Inflatable Restraint I/P Module Switch (Pickup Only)
(4)Auxiliary Power Outlet - Right
(5)Auxiliary Power Outlet - Left
(6)I/P Tray, Ashtray and Cigar Lighter
(7)Rear Wiper/Washer Switch and Endgate/Liftglass Window Release Switch (Utility)
(8)Transfer Case Shift Control Switch C2
(9)Transfer Case Shift Control Switch 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)Front Axle Indicator Switch
(2)Front Axle