Instrument Cluster

Instrument Cluster

CAUTION:
Before beginning repairs on the electrical system:
- Obtain the anti-theft radio security code.
- Switch the ignition off.
- Disconnect the battery Ground (GND) strap.
- On vehicles equipped with Audi Telematics by OnStar, switch-off the emergency (backup) battery for the Telematic/Telephone Control Module prior to disconnecting vehicle battery.
- After reconnecting vehicle battery, re-code and check operation of anti-theft radio. Also check operation of clock and power windows according to Owner's Manual.
- After reconnecting vehicle battery on vehicles equipped with Audi Telematics by OnStar, switch-on the emergency (backup) battery for the Telematic/Telephone Control Module.

- Disconnect battery Ground strap with ignition switched off.

NOTE: Steps before re-connecting voltage supply.

Fault message "dEF" on trip computer display
If control module in instrument cluster detects a DTC in permanent memory, letters "dEF" will appear on trip computer display.
- If"dEF" is displayed, replace instrument cluster