MMI Radio (I8E), From My 2017

Information Electronics Control Module 1 J794

Fig 1: Information Electronics Control Module 1 -J794-

Courtesy of AUDI OF AMERICA, LLC

DAB connection from Digital Radio Antenna -R183-
Connection Block with Four Multi-Pin Connectors
MOST Bus
4-Pin Connector -T4al- to the Front Information Display Control Head -J685-
4-Pin Connector -T4w- to the USB Distributor -R293-
AM/FM/FM2 Antenna Connection

NOTE:

Unlisted connector terminals are not assigned.

2 - Connection block with four multi-pin connectors

A - 8-Pin Connector T8ag

Fig 2: A - 8-Pin Connector -T8e-

Courtesy of AUDI OF AMERICA, LLC

Right Rear Speaker (+)
Right Front Speaker (+)
Left Front Speaker (+)
Left Rear Speaker (+)
Right Rear Speaker (-)
Right Front Speaker (-)
Left Front Speaker (-)
Left Rear Speaker (-)

B - 12-Pin Connector T12x

Fig 3: A - 8-Pin Connector -T8e-

Courtesy of AUDI OF AMERICA, LLC

Microphone input (+) from Microphone Unit In Front Roof Module -R164-, Telephone Microphone -R38-
Not Assigned
Not Assigned
LF (+) from Control Module for Emergency Call Module and Communication Unit -J949-
LF mute wire from Control Module for Emergency Call Module and Communication Unit -J949-
CVBS cable (-) from Rearview Camera System Control Module -J772-
Microphone input (-) from Microphone Unit In Front Roof Module -R164-, Telephone Microphone -R38-
Not Assigned
Not Assigned
LF (-) from Control Module for Emergency Call Module and Communication Unit -J949-
Not Assigned
CVBS cable (+) from Rearview Camera System Control Module -J772-

C - 12-Pin Connector T12y

Fig 4: A - 8-Pin Connector -T8e-

Courtesy of AUDI OF AMERICA, LLC

All pins are connected to the External Audio Source Connection -R199-.

LF-In Ground
Right LF-In
USB, +5 V
USB, Ground
Not Assigned
Not Assigned
Left LF-In
LF-In ground shielding
Not Assigned
Not Assigned
Not Assigned
Not Assigned

D - 8-Pin Connector T8j

Fig 5: A - 8-Pin Connector -T8e-

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9 - Subwoofer -R211- (+)

10 - Center Speaker -R208- (+)

13 - Subwoofer -R211- (-)

14 - Center Speaker -R208- (-)

17 - Terminal 31

18 - Terminal 30

E - 12-Pin Connector T12w

Fig 6: A - 8-Pin Connector -T8e-

Courtesy of AUDI OF AMERICA, LLC

CAN bus high to the Multimedia System Control Head -E380- /Front Information Display Control Head -J685-
Reset Multimedia System Control Head -E380-
Ring-Break Diagnostic Cable
Not Assigned
Switch-On Signal to Telephone Baseplate -R126-
CAN bus high, Infotainment
CAN bus low to the Multimedia System Control Head -E380- /Front Information Display Control Head -J685-
Reset Information Electronics Control Module 1 -J794-) from Multimedia System Control Head -E380-
Not Assigned
Not Assigned
Status signal from Telephone Baseplate -R126-
CAN bus low, Infotainment

3 - MOST bus

Fig 7: 2 - MOST Bus

Courtesy of AUDI OF AMERICA, LLC

Input
Output

4 - 4-Pin Connector T4ej

Fig 8: 2 - 5-Pin Connector -T5bp-

Courtesy of AUDI OF AMERICA, LLC

All pins are connected to the Front Information Display Control Head -J685-.

LVDS (-)
Ground
LVDS (+)
Ground

5 - 4-Pin Connector T4ef

Fig 9: 2 - 5-Pin Connector -T5bp-

Courtesy of AUDI OF AMERICA, LLC

All pins are connected to the USB Distributor -R293-.

USB1 data (+)
USB2 data (-)
USB1 data (-)
USB2 data (+)

6 - AM/FM1/FM2 antenna connection

Fig 10: 1 - AM/FM1/FM2 Antenna Connection

Courtesy of AUDI OF AMERICA, LLC

Connector 2, AM/FM1 from Antenna Amplifier -R24-, Antenna -R11-
Connector 1, FM2 from Antenna Amplifier 2 -R111- or Antenna Amplifier 3 -R112-, Radio Antenna 2 -R93-