Telematic Control Module -J499- - Jetta Sedan, removing and installing

Fig 1: Identifying Telematic Control Module

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• 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 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 

Fig 2: Identifying Upper Left Luggage Compartment Trim

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• Loosen upper left luggage compartment trim and pull down -arrows-.

Fig 3: Identifying Telematics Control Module Nuts

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• Remove nuts -arrows-.
• Remove telematics control module.
• First disconnect 42-pin connection from control module, as follows:

Fig 4: Identifying Clip

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• Depress clip -arrow 1- and slide locking lever in direction of -arrow2-.
• Then disconnect antenna cable connections from control module.

Installing 

Install in reverse order of removal, noting the following:

If telematics control module was replaced:

• Code telematics control module. Refer to Telematic Control Module -J499-, coding  .
• Reconfigure telematics system for OnStar ® functions. Refer to Telematic Control Module -J499-, reconfiguring  .