Overview - Telephone, Cell Phone Preparation, 9ZF, Through My 2014

WARNING: This page is about a different car, the 2015 Audi A7 Quattro and 2014 Audi A7 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

The Telephone Baseplate -R126- is installed in the center console. The telephone is operated either by the Infotainment system MMI 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-.

The connection for the antenna is located on the Telephone Baseplate -R126-.

9ZF - Cell phone preparation in the Information Electronics Control Module 1 -J794-

Fig 1: Identifying Cellular Telephone Preparation

Courtesy of AUDI OF AMERICA, LLC

Roof Antenna -R216-
Front Information Display Control Head -J685- in center of the instrument panel
Multimedia System Control Head -E380- in the center console
Information Electronics Control Module 1 -J794- inside the instrument panel
Microphone Unit in Front Roof Module -R164-, Right Front Microphone -R141- in the Front Interior Lamp -W1-
Data Bus On Board Diagnostic Interface -J533- under the rear bench seat
Steering Column Electronics Control Module -J527- on steering column at steering column switch
Multifunction Steering Wheel
Instrument Cluster Control Module -J285- in the instrument panel
Digital Sound System Control Module -J525- behind the left luggage compartment trim panel
Microphone Unit in Front Roof Module -R164-, Left Front Microphone -R140- in the Front Interior Lamp -W1-
Telephone Baseplate - R126- with Cellular Telephone -R54-
Cellular Telephone Amplifier -R86- behind the right luggage compartment trim panel

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

Antenna wires, repairing. Refer to ANTENNA WIRES, REPAIRING .

Notes on Bluetooth technology

A standardized radio connection system is used to transmit data between the Information Electronics Control Module 1 -J794- and Telephone Handset -R37- /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 Telephone Baseplate -R126- /Cellular Telephone -R54-, so that the Telephone Handset -R37- /Cellular Telephone -R54- can be operated wirelessly.

The range of the radio connection is approximately 10 m.

Notes on MOST bus

The optical Data bus "MOST bus" is used in addition to the CAN bus.

A fiber-optic cable is used as a "connecting cable". Fiber optic cables are routed inside corrugated tubes for protection.

Replace complete fiber optic cable if possible.

The front surface of the connectors must not be dirty.

If disconnecting the connectors: Attach Fiber-Optic Repair Set - Connector Protective Caps VAS 6223/9.

Fig 2: Fiber Optic Plier Repair Set VAS 6223

Courtesy of AUDI OF AMERICA, LLC

When installing fiber optic cables, make sure not to go below the minimum bending radius of 25 mm. Do not crush or kink fiber optic cables.

Repairing fiber optic cables. Refer to FIBER OPTIC CABLE .