Cellular Phone: Description and Operation

Telephone System from June 2009

The telephone system consists of the following components:

• Cell phone preparation in the information electronics control module 1 (J794)

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. Operation is performed via the MMI Infotainment System or the cell phone.

Microphones for microphone unit in front roof module (R164) are integrated in the Front Interior Light (W1). On microphone (left front microphone (R140)) is connected directly to the information electronics control module 1.

• Bluetooth hands-free calling information electronics control module 1

The information electronics control module 1 is installed with the microphone unit in front roof module and is part of the handsfree setup. Bluetooth connect the cellular telephone (R54).

The Bluetooth antenna (R152) is integrated in the information electronics control module 1.

Fault finding is performed via guided fault finding using vehicle diagnosis, testing & info. system (VAS5051B).

Notes on Bluetooth technology

A standardized radio connection system is used to transmit data between information electronics control module 1 and cellular telephone - Bluetooth Technology.

An additional transmitter/receiver unit is installed in the information electronics control module 1. A separate Bluetooth antenna connects the information electronics control module 1 and cellular telephone.

The range of the radio wave connection is approximately 10 meters.

Additional information, refer to self study 286, New data bus systems - LIN, MOST Bluetooth.