Information Electronics Control Module 1 -J794-, THROUGH MY 2016

Information Electronics Control Module 1 J794, except North America 

Fig 1: Information Electronics Control Module 1 -J794-

Courtesy of AUDI OF AMERICA, LLC

1. GSM connection from Telephone Antenna -R65- or two GSM connections from LTE Antenna 1 -R297- /LTE Antenna 2 -R306-
2. DAB connection from Digital Radio Antenna -R183-
3. Connection block with four multi-pin connectors
4. MOST Bus
5. 4-Pin Connector -T4al- to the Front Information Display Control Head -J685-
6. 4-Pin Connector -T4w- to the External Audio Source Connection -R199-
7. 4-Pin Connector -T4ar- to the Chip Card Reader Control Module -J676-, only for Japan
8. Not Assigned
9. AM/FM/FM2 antenna connection
10. GPS Connection from GPS Antenna -R50-

Information Electronics Control Module 1 J794, North America Only 

Fig 2: Information Electronics Control Module 1 -J794-

Courtesy of AUDI OF AMERICA, LLC

1. GSM connection from Telephone Antenna -R65- or two GSM connections from LTE Antenna 1 -R297- /LTE Antenna 2 -R306-
2. SDARS connection from Satellite Tuner Antenna -R172-
3. Connection block with four multi-pin connectors
4. MOST Bus
5. 4-Pin Connector -T4al- to the Front Information Display Control Head -J685-
6. 4-Pin Connector -T4w- to the External Audio Source Connection -R199-
7. Not Assigned
8. Not Assigned
9. AM/FM/FM2 antenna connection
10. GPS Connection from GPS Antenna -R50-

3 - Connection Block with Four Multi-Pin Connectors 

A - 8-Pin Connector T8ag 

Courtesy of AUDI OF AMERICA, LLC

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 setup for cell phone package
5. LF mute wire from preliminary setup for cell phone preparation
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 setup for cell phone package
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 

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

Courtesy of AUDI OF AMERICA, LLC

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

4 - MOST bus 

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1. Input
2. Output

5 - 4-Pin Connector T4al 

Courtesy of AUDI OF AMERICA, LLC

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

1. LVDS (-)
2. Not Assigned
3. LVDS (+)
4. Ground

6 - 4-Pin Connector T4w 

Courtesy of AUDI OF AMERICA, LLC

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

1. D (+)
2. iPod recognized
3. D (-)
4. Ground

7 - 4-Pin Connector T4ar, only Japan 

Courtesy of AUDI OF AMERICA, LLC

All pins are connected with the Chip Card Reader Control Module -J676-.

1. Ground
2. Data (-)
3. Supply, +5 V
4. Data (+)

9 - 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-