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Overview - Telephone, From 11 / 03 / 2008

WARNING: This page is about a different variant/trim than selected.

The Telephone System Consists Of The Following Components: 

The CAB Bus connects the Telephone Transceiver -R36- to the Infotainment system (radio). It also has a Bluetooth Antenna -R152-.

Operation Is Performed Via The Radio -R- Or The Cellular Telephone -R54-.

The microphones for the Microphone Unit In Front Roof Module -R164- are integrated in the Front Interior Lamp -W1-. One microphone is connected (Left Front Microphone -R140-) with the Telephone Transceiver -R36-.

Fig 1: Cell Phone Preparation (CAN) Overview
GWWA91-10402Courtesy of AUDI OF AMERICA, LLC
  1. Telephone Baseplate -R126- with Cellular Telephone - R54- (Through MY 2008)
  2. Radio -R- in the instrument panel
  3. Sound Systems
  4. Bluetooth Antenna -R152- at Telephone Transceiver -R36-
  5. Telephone Transceiver -R36- under the front passenger seat
  6. Microphone Unit in Front Roof Module - R164- in the Front Interior Lamp -W1-
  7. Radio / Telephone / Navigation System Antenna -R52- / Roof Antenna -R216-

The cell phone preparation does not have a separate control module (Telephone Transceiver -R36-), but rather all the functions are integrated into the Information Electronics Control Module 1 -J794-. The telephone is operated either by the MMI Infotainment system or by the Cellular Telephone -R54-.

The microphones for the Microphone Unit In Front Roof Module -R164- are integrated in the Front Interior Lamp -W1-. On microphone (Left Front Microphone -R140-) is connected directly to the Information Electronics Control Module 1 -J794-.

Fig 2: Cell Phone Preparation, MMI Overview
GWWA91-11360Courtesy of AUDI OF AMERICA, LLC
  1. Radio / Telephone / Navigation System Antenna -R52- / Roof Antenna -R216-
  2. Front Information Display Control Head -J685- in center of the instrument panel
  3. Multimedia System Control Head -E380- in the center console
  4. Information Electronics Control Module 1 -J794- inside the instrument panel
  5. Microphone Unit in Front Roof Module -R164- (Right Front Microphone -R141-) in the Front Interior Lamp -W1-
  6. Data Bus On Board Diagnostic Interface -J533- Behind the Glove Compartment On the Left Side
  7. Steering Column Electronics Control Module -J527- on steering column at steering column switch
  8. Multifunction Steering Wheel
  9. Instrument Cluster Control Module -J285- in the instrument panel
  10. Digital Sound System Control Module -J525- behind the luggage compartment left side trim
  11. Microphone Unit in Front Roof Module -R164- (Left Front Microphone -R140-) in the Front Interior Lamp -W1-

The Information Electronics Control Module 1 -J794- is installed with the Microphone Unit In Front Roof Module -R164- and is part of the hands-free setup. Bluetooth is connected via the Cellular Telephone -R54-.

The Bluetooth Antenna -R152- is integrated in the Information Electronics Control Module 1 -J794-.

Fig 3: Identifying Bluetooth Hands-Free Calling (From 1 June 2009)
GWWA91-11436Courtesy of AUDI OF AMERICA, LLC
  1. Front Information Display Control Head -J685- in center of the instrument panel
  2. Multimedia System Control Head -E380- in the center console
  3. Microphone Unit in Front Roof Module -R164- (Right Front Microphone -R141-) in the Front Interior Lamp -W1-
  4. Information Electronics Control Module 1 -J794- with Bluetooth Antenna -R152- inside the instrument panel
  5. Data Bus On Board Diagnostic Interface -J533- Behind the Glove Compartment On the Left Side
  6. Digital Sound System Control Module -J525- behind the luggage compartment left side trim

The Telephone Transceiver -R36- is installed with the Microphone Unit in Front Roof Module -R164- / Bluetooth Antenna -R152- and is part of the hands-free setup. Bluetooth is connected via the Cellular Telephone -R54-.

The Bluetooth Antenna -R152- is attached to the Telephone Transceiver -R36-.

Fig 4: CAN Bluetooth Setup
GWWA91-11435Courtesy of AUDI OF AMERICA, LLC
  1. Radio -R- in the instrument panel
  2. Sound Systems
  3. Bluetooth Antenna -R152- at Telephone Transceiver -R36-
  4. Telephone Transceiver -R36- under the front passenger seat
  5. Microphone Unit in Front Roof Module -R164- (Right Front Microphone -R141-) in the Front Interior Lamp -W1-

Fault finding is performed via "Guided Fault Finding  " on the Vehicle Diagnostic Tester.

Notes on Bluetooth technology

A standardized radio connection is used to transfer data between the Information Electronics Control Module 1 -J794- and Cellular Telephone -R54- - Bluetooth Technology.

An additional transmitter / receiver unit is installed in the Information Electronics Control Module 1 -J794-. A separate Bluetooth Antenna -R152- connects the Information Electronics Control Module 1 -J794- and Cellular Telephone -R54-.

The range of the radio connection is approximately 10 m.

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