Information Electronics Control Module 1 -J794-, FROM MY 2017

Information Electronics Control Module 1 J794, except North America 

Fig 1: Identifying Navigation Plus Connector Assignment, 7UG, From My 2015

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1. LTE connection from LTE Antenna 2 -R306-
2. LTE connection from LTE Antenna 1 -R297-
3. DAB connection from Digital Radio Antenna -R183-
4. Connection block with four multi-pin connectors
5. MOST Bus
6. 4-Pin Connector -T4ej- to the Front Information Display Control Head -J685-
7. 4-Pin Connector -T4ef- to the USB Distributor -R293-
8. 4-Pin Connector -T4dx- to the Instrument Cluster -KX2-
9. Not assigned/not equipped
10. AM/FM/FM2 antenna connection
11. GPS Connection from GPS Antenna -R50-, only for NZ0

Information Electronics Control Module 1 J794, North America only 

Fig 2: Identifying Navigation Plus Connector Assignment, 7UG, From My 2015

Courtesy of AUDI OF AMERICA, LLC

1. LTE connection from LTE Antenna 2 -R306-
2. LTE connection from LTE Antenna 1 -R297-
3. SDARS connection from Satellite Tuner Antenna -R172-
4. Connection block with four multi-pin connectors
5. MOST Bus
6. 4-Pin Connector -T4ej- to the Front Information Display Control Head -J685-
7. 4-Pin Connector -T4ef- to the USB Distributor -R293-
8. 4-Pin Connector -T4dx- to the Instrument Cluster -KX2-
9. Not assigned/not equipped
10. AM/FM/FM2 antenna connection
11. GPS Connection from GPS Antenna -R50-

4 - Connection Block with Four Multi-Pin Connectors 

A - 8-Pin Connector T8ag 

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1. Right Rear Speaker (+)
2. Right Front Speaker (+)
3. Left Front Speaker (+)
4. Left Rear Speaker (+)
5. Right Rear Speaker (-)
6. Right Front Speaker (-)
7. Left Front Speaker (-)
8. Left Rear Speaker (-)

B - 12-Pin Connector T12x 

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1. Microphone input (+) from Microphone Unit In Front Roof Module -R164-, Telephone Microphone -R38-
2. Not Assigned
3. Not Assigned
4. LF (+) from Control Module for Emergency Call Module and Communication Unit -J949-
5. LF mute wire from Control Module for Emergency Call Module and Communication Unit -J949-
6. CVBS cable (-) for the Rearview Camera System Control Module -J772-
7. Microphone input (-) from Microphone Unit In Front Roof Module -R164-, Telephone Microphone -R38-
8. Not Assigned
9. Not Assigned
10. LF (-) from Control Module for Emergency Call Module and Communication Unit -J949-
11. Not Assigned
12. CVBS cable (+) for the Rearview Camera System Control Module -J772-

C - 12-Pin Connector T12y 

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

1. LF-In Ground
2. Right LF-In
3. USB, +5 V
4. USB, Ground
5. Not Assigned
6. Not Assigned
7. Left LF-In
8. LF-In ground shielding
9. Not Assigned
10. Not Assigned
11. Not Assigned
12. Not Assigned

D - 8-Pin Connector T8j 

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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 

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1. CAN bus high to the Multimedia System Control Head -E380- /Front Information Display Control Head -J685-
2. Reset Multimedia System Control Head -E380-
3. Ring-break Diagnostic Cable
4. Not Assigned
5. Switch-on signal to Telephone Baseplate -R126-
6. CAN bus high, Infotainment
7. CAN bus low to the Multimedia System Control Head -E380- /Front Information Display Control Head -J685-
8. Reset (Information Electronics Control Module 1 -J794-) from Multimedia System Control Head -E380-
9. Not Assigned
10. Not Assigned
11. Status signal from Telephone Baseplate -R126-
12. CAN bus low, Infotainment

5 - MOST bus 

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1. Input
2. Output

6 - 4-Pin Connector T4ej 

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

1. LVDS (-)
2. Ground
3. LVDS (+)
4. Ground

7 - 4-Pin Connector T4ef 

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

1. USB1 data (+)
2. USB2 data (-)
3. USB1 data (-)
4. USB2 data (+)

8 - 4-Pin Connector T4dx 

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All pins are connected to the Instrument Cluster -KX2-.

1. LVDS (-)
2. Ground
3. LVDS (+)
4. Ground

10 - AM/FM1/FM2 Antenna Connection 

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