GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2005 🢒 DeVille 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T80-E 🢒 Cellular Communication Component Views
Figure 1:

Under the Rear Compartment Shelf
Object Number: 302023 Size: LF
(1)Cellular Telephone Module
(2)Cellular Telephone Module Connector
(3)Cellular Telephone Antenna Lead
(4)Cellular Telephone Interface Board
Figure 2:

Passenger Compartment, Center Front of the Headliner
Object Number: 524995 Size: LF
(1)Sunroof Slide Switch (Part of the Power Sunroof Switch Assembly)
(2)Rear Window Sunshade Switch
(3)Overhead Console Courtesy Lamp
(4)Noise Compensation Microphone
(5)Outside Moisture Sensor
(6)Inside Rearview Mirror
(7)Overhead Console Courtesy Lamp
(8)Cellular Telephone Microphone
(9)Garage Door Opener
(10)Sunroof Vent Switch (Part of the Power Sunroof Switch Assembly)
(11)Overhead Console
Figure 3:

Right Rear Corner of Passenger Compartment, Above Rear Shelf
Object Number: 747625 Size: LF
(1)Onstar® Cellular Antenna Connector
(2)G304
Figure 4:

Behind Rear Seat Back
Object Number: 788556 Size: LF
(1)RR Inflatable Restraint Side Impact Module
(2)Rear Integration Module (RIM)
(3)Electronic Suspension Control (ESC) Module
(4)C205
(5)Vehicle Communication Interface Module (VCIM)
(6)Audio Amplifier
(7)T.V. Antenna Module
(8)Rear Door Lock Relay (w/B9Q)
(9)RR Inflatable Restraint Side Impact Module Connector
Figure 5:

Front of Rear Compartment, Under Rear Shelf
Object Number: 324989 Size: LF
(1)Onstar ® GPS Antenna