Telephone/Telematics Control Module J526 , removing and installing

WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2008 Audi S4, 2008 Audi RS 4, 2008 Audi A4, 2007 Audi S4, and 2007 Audi RS 4. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

The following procedure describes control module removal and installation only.
If the control module is replaced, the OnStar system needs to be configured and the emergency (backup) battery must be replaced.
DO NOT exchange Telephone/Telematic Control Modules between vehicles!. Each module contains specific Station Identification (STID) and Electronic Serial Number (ESN) data unique to the VIN. This data is used by OnStar and National Cellular Telephone Network to identify the vehicle and administer the customers account.

CAUTION:

Switch off all electrical components.
Switch ignition off and remove ignition key.

Removing:

Switch off Emergency Battery (Telematics) A16 → Emergency Battery (Telematics) A16 , switching on/off
Remove A-pillar trim: → - 70 - INTERIOR TRIM .
Remove front passengers seat → - 72 - SEAT - FRAMES .

NOTE:

Seat belt need not be removed from seat frame.
Pull back floor carpet..

Fig 1: Identifying Passenger Side Electronics Box Cover

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Release cover for electronics box - arrows - and remove.

Fig 2: Opening Lid Of Mounting Box

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Open lid - 1 - of mounting box - 2 - in direction of - arrow -.

Avant only:

Disconnect cable connection to Antenna Splitter R87.

Fig 3: Identifying Electrical/Antenna Connection And Control Module

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Disconnect electrical/antenna connections - 2 - , - 3 - and - 4 -.
Remove control module - 1 - from mounting box.

Installing:

Install in reverse order of removal, noting the following.
If existing control module is reinstalled, switch on Emergency Battery (Telematics) A16 → Emergency Battery (Telematics) A16 , switching on/off

NOTE:

Ensure correct seating and fit of electrical connections.
Antenna connections (couplings) must be properly aligned and tight to ensure proper reception.
If control module is replaced, replace Emergency Battery (Telematics) A16 → Emergency Battery (Telematics) A16 , removing and installing and configure control module → Telephone/Telematics Control Module J526 , replacing and configuring