GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2000 🢒 Astro - 4WD 🢒 Driveline/Axle 🢒 Transfer Case - NVG 136-NP4 (One Speed Automatic) 🢒 Transfer Case Control Schematics
Figure 1:

Power, Ground, Motor Controls and Data Link
Object Number: 488604 Size: FS
Transfer Case Control Components
Transfer Case Circuit Description
Transfer Case Vehicle Speed Sensors
Data Link Schematics (1 of 2)
Handling ESD Sensitive Parts Notice
G110 (1 of 2)
HTR-A/C Fuse 12, BRAKE Fuse 18 and CRUISE Fuse 6
CIG LTR Fuse 13, RADIO BATT Fuse 19 and CRANK Fuse 8
HTR-A/C Fuse 12, BRAKE Fuse 18 and CRUISE Fuse 6
CIG LTR Fuse 13, RADIO BATT Fuse 19 and CRANK Fuse 8
Battery, Generator, Starter Solenoid, and Underhood Fuse BLock
Handling ESD Sensitive Parts Notice
RADIO BATT Fuse, Data Link, and CRUISE Fuse
Figure 2:

Transfer Case Vehicle Speed Sensors
Object Number: 488607 Size: FS
Transfer Case Control Components
Transfer Case Circuit Description
Power, Ground, Motor Controls and Data Link
Transfer Case Control Schematic Icons