Infotainment System Overview, Japan

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The MMI Infotainment System Is Available In The Following Equipment Levels:

MMI Maximum Equipment

The Information Electronics Control Module 1 -J794- inside the instrument panel at the top contains the CD player/DVD player/navigation system/SD memory card reader
internal hard drive disc storage (HD) for storing navigation data and MP3 files
Multimedia System Control Head -E380- in the center console
Front Information Display Control Head -J685- in center of the instrument panel
CD Changer -R41- in glove compartment, (7A6)
Optional External Audio Source Connection -R199- (interface) in the glove compartment (UF7)
External Audio Source Connection -R199- (AUX IN jack) in the center console storage compartment
Digital Sound System Control Module -J525- in the luggage compartment on the left rear side
Sound system: Standard/Bang & Olufsen (9VD/9VK)
Radio -R- inside the luggage compartment, on the left side and in the rear (8YQ)
TV Tuner -R78- in the luggage compartment on the left rear side (QU7)
Optional multifunction steering wheel
Optional Bluetooth hands-free calling (9ZX)
WLAN (From MY 2012) UE2

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Multimedia System Control Head -E380- in the center console
GPS Antenna -R50-
Front Information Display Control Head -J685- in center of the instrument panel
not installed
Microphone Unit in Front Roof Module -R164- (Left Front Microphone -R140-) in the Front Interior Lamp -W1-
not installed
Information Electronics Control Module 1 -J794- inside the instrument panel
MOST bus
CVBS cable
CD Changer -R41- in glove compartment
TV Tuner -R78- behind the left luggage compartment side trim panel
External Audio Source Connection -R199- (AUX IN jack) in the center console storage compartment
Radio -R- behind the left luggage compartment side trim panel
Digital Sound System Control Module -J525- behind the luggage compartment left side trim
Data Bus On Board Diagnostic Interface -J533- Behind the Glove Compartment On the Left Side
not installed

The MOST bus performs the system data exchange in the MMI.

The connection to the other data bus systems in the vehicle are provided by the Data Bus On Board Diagnostic Interface -J533-.

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

Information Electronics Control Module 1 -J794- overview

Information Electronics Control Module 1 -J794- is a 3rd generation MMI. Depending on the equipment level, the Information Electronics Control Module 1 -J794- contains the following known control modules from the 2nd generation:

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Front Information Display Control Head Control Module -J523-
CD Player -R89-
Navigation System with CD Drive Control Module -J401-
SD memory card reader
not installed
Bluetooth hands-free calling
not installed
Internal hard drive (HD) disc storage
Information Electronics Control Module 1 -J794-

Radio -R- Overview

Depending on the equipment level, the Radio -R- contains the following known 2nd generation control modules:

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Digital Sound System Control Module -J525- (Standard)
Radio -R-
Radio -R- (AM/FM-Tuner)
not installed
not installed

MOST Bus Overview

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Front Information Display Control Head -J685-
Information Electronics Control Module 1 -J794-
MOST bus
CD Changer -R41-
TV Tuner -R78-
Radio -R-
Digital Sound System Control Module -J525-
Data Bus On Board Diagnostic Interface -J533-
Multimedia System Control Head -E380-

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.

Make sure that the face surfaces of the connectors do not become soiled.

If disconnecting the connectors: Attach Fiber-Optic Repair Set - Connector Protective Caps :VAS6223/9 .

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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 CABLES, REPAIRING .