Emergency Battery (Telematics) A16 , switching on/off

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.

In order to avoid unnecessary discharge of the emergency (back-up) battery, it must always be switched off prior to disconnecting the vehicle battery, and switched back on after the vehicle battery is reconnected.

Should the existing Telephone/Telematics Control Module J526 be removed and reinstalled, the emergency (back-up battery) must be switched off prior to removal, and switched on after reinstallation.

Should the Telephone/Telematics Control Module J526 be replaced and configured, the emergency (back-up battery) must be switched off prior to removal, replaced, and switched on after control module installation and coding → Emergency Battery (Telematics) A16 , removing and installing

Preparation:

Connect and use VAS 5051/5052 in mode "Guided Fault Finding"
Enter appropriate model, equipment and model year information and press ">" to confirm.

After all control modules have been registered and DTC memories checked:

Press "Go to"
Select: "Function/Component Selection"
Select: "Body, (01; 27; 50-97)"
Select: "Electrical equipment" (01; 27, 90-97"

Select: "01 - On Board Diagnostic (OBD) capable systems"
Select: "75- Telematics USA"
Select: "Functions - Telematic"
Select: "J526 - Telephone/Telematic Ctrl. Module, service mode disco. battery "

If necessary, press ">" to advance

Switching off:

Select/press button "3 - Service mode activating (no load on emergency battery)"
Follow the testers prompts.

Switching on:

Select/press button "1 - Service mode deactivating (normal operating condition)"
Follow the testers prompts.