GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Astro - 2WD 🢒 Driveline/Axle 🢒 Transfer Case 🢒 Transfer Case Control Component Views
Figure 1:

Transfer Case Control Module Locator View
Object Number: 377257 Size: LF
(1)Transfer Case Shift Control Module
(2)Transfer Case Wiring Harness
(3)Dash
Figure 2:

A4WD Transfer Case Locator View
Object Number: 498835 Size: LF
(1)C311 (Engine Harness to VSS Extension Harness)
(2)Transfer Case Encoder Motor Connector
(3)Transfer Case Rear Vehicle Speed Sensor
(4)Vehicle Speed Sensor (VSS) (Input to VCM)
(5)Transfer Case Front Vehicle Speed Sensor