GM Service Manual Online
For 1990-2009 cars only
Makes šŸ¢’ GMC_Truck šŸ¢’ 2002 šŸ¢’ GMC C Sierra - 2WD šŸ¢’ Transmission/Transaxle šŸ¢’ Automatic Transmission - 4L60-E šŸ¢’ Cellular Communication Component Views
Figure 1:

Component Locations
Object Number: 623162 Size: MF
(1)Cellular Antenna
(2)Cellular Telephone Microphone
(3)Global Positioning System (GPS)
(4)Fuse Block-Body
(5)Vehicle Communication Unit (VCU)
(6)OnStarĀ® Button Assembly
(7)Vehicle Interface Unit (VIU)
Figure 2:

Vehicle Interface Unit (VIU)
Object Number: 623205 Size: MF
(1)Vehicle Interface Unit (VIU)
(2)Vehicle Interface Unit (VIU) Connector C-2 (Blue)
(3)Vehicle Interface Unit (VIU) Connector C-1 (Red)
(4)I/P Panel-RH
Figure 3:

Onstar Vehicle Communication Unit (VCU)
Object Number: 623169 Size: MF
(1)IP Support Bracket
(2)Vehicle Communication Unit (VCU)
(3)Vehicle Communication Unit (VCU) Connector
(4)C248
(5)Vehicle Communication Unit (VCU) Harness
Figure 4:

Global Positioning Antenna (GPS)
Object Number: 623207 Size: MF
(1)Global Positioning System (GPS) Harness
(2)Global Positioning System (GPS) Connector
(3)Global Positioning System (GPS) Antenna
Figure 5:

OnStarĀ® Microphone
Object Number: 623185 Size: MF
(1)Inline Connector C211
(2)Overhead Reading Lamps
(3)OnStarĀ® Microphone
Figure 6:

OnStarĀ® Button Assembly
Object Number: 623182 Size: MF
(1)OnStarĀ® Button Assembly Connector
(2)OnStarĀ® Button Assembly