Battery Disconnect Precautions: 2000-03
Before disconnecting the battery, please read the following:
- Determine the correct coding for the anti-theft radio
- Turn ignition OFF.
- Disconnect battery ground cable.
- On vehicles equipped with Audi Telematics by OnStar, switch-off the emergency (back-up) battery for the Telematic/Telephone Control Module prior to disconnecting vehicle battery. After reconnecting vehicle battery on vehicles equipped with Audi Telematics by OnStar, switch-on the emergency (back-up) battery for the Telematic/Telephone Control Module. The emergency (back-up) battery is mounted behind the Telephone/Telematic Control Module (under rear parcel shelf). See Fig 1.
- After reconnecting vehicle battery, re-code and check operation of anti-theft radio.
- Check operation of clock and power windows.