Telematics Control Head E264 , removing and installing
The Telematics Control Head is located in the front interior light module.
Note. In the event any of the OnStar control buttons are either inadvertently or deliberately pressed for longer than 15 seconds, the OBD program assumes a button is sticking. The red status light will come on and a DTC loads in memory. Use Vehicle Diagnostic Testing and Information System VAS 5051 in mode "Guided Fault Finding". Check DTC memory for DTC 01526 mechanical malfunction. Inform customers accordingly. A faulty control button cannot be replaced separately. Replace complete Telematics control head.
Removing
| CAUTION | Activate Telematics Service Mode --> Telematics Service Mode, activating and deactivating |
| CAUTION | Switch off all electrical components. Switch off ignition and remove ignition key. |
- Remove Front Interior Light W1 --> «96 - LIGHTS, SWITCHES - INTERIOR, ANTI-THEFT»(/audi/a8/d3-2-2007-2010/remont/cruise-control-systems/#electrical-equipment) .
Scheme 144
- Disconnect electrical connection - 1 - and unclip it from the retainer - 2 -.
- On the front side of Front Interior Light W1 , unclip the Telematics Control Head E264 from retainer - arrow 2 - and swivel the Telematics Control Head E264 upward out of Front Interior Light W1 - arrow 1 -.
Installing
- Install in reverse order.
- Deactivate Telematics Service Mode --> «Telematics Service Mode, activating and deactivating»(/audi/a8/d3-2-2007-2010/remont/accessories-control-systems/#communication__telematics-service-mode-activating-and-deactivating) .