Replacement - Passat Wagon

Telematic Control Module -J499- - Passat Wagon, Removing And Installing

NOTE: If the telematic control module is replaced, the OnStar (R) system needs to be reconfigured.







- 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 (R) and National Cellular Telephone Network to identify the vehicle and administer the customer's account.
- Using the VAS 5051 Vehicle Diagnostic Testing and Information system in operating mode "Guided Fault Finding, and function "-J499- Telematic control module, replacing" it is possible to read the telematic control module coding from the existing module before removal. Note code prior to removal in order input code into replacement control module.

Removing

CAUTION: Before beginning repairs on the electrical system:
- Switch off all electrical consumers.
- Switch ignition off and remove ignition key.
- Disconnect negative (-) battery terminal.
- When disconnecting and reconnecting battery terminals, observe all applicable Notes and torque specifications, as well as instructions on performing OBD program and electrical system function checks.







- Open right luggage compartment storage -arrow-







- Carefully remove plastic retainer -arrow-.







- Pull out control module -arrow- as far as wiring allows.
- First disconnect 42-pin connection from control module, as follows:







- Depress clip -arrow1- and slide locking lever in direction of -arrow2-







- Then disconnect both antenna cable connections from control module by depressing clip -arrow- and pulling out antenna connector.

Installing
Install in reverse order of removal, noting the following:

If telematics control module was replaced:
- Code telematics control module.
- Reconfigure telematics system for OnStar (R) functions.