Contents Wiring diagrams Section: Communication (avant) All sections

MAXIMUM EQUIPMENT Audi A4 B8

Communication (avant) 10 illustrations ~1364 words

MAXIMUM EQUIPMENT

  1. Radio, Telephone, Navigation System Antenna -R52- GSM connection (roof antenna)
  2. Connection Block with Four Connectors
  3. MOST bus
  4. FBAS input from TV Tuner -R78
  5. 4-pin connector (T4am) to front information display control head -J685
  6. 4-pin connector (T4ap) for the external audio source connection -R199- /internet access control module -J666- (from MY 13)
  7. Not assigned
  8. Radio, Telephone, Navigation System Antenna -R52- GPS connection (roof antenna)

Note. Unlisted connector terminals are not used.

2 - Connection Block With Four Connectors

  1. NF mute from preliminary setup for cell phone preparation
  2. Voltage supply to Multimedia Control Head -E380
  3. Wake UP to multimedia system control head
  4. Not assigned
  5. Switch-on signal for the cellular telephone amplifier -R86
  6. Res MU to multimedia system control head
  7. Ring-break diagnostic cable

LHD vehicle

2 - Microphone IN (+) for the microphone unit in front roof module -R164- (right front microphone -R141-)

3 - Microphone IN (-) for the microphone unit in front roof module (right front microphone)

5 - Cable (-) for the rearview camera system control module -J772

8 - Microphone IN (+) for the microphone unit in front roof module (left front microphone -R140-)

9 - Microphone IN (-) for the microphone unit in front roof module (left front microphone)

11 - Cable (+) for the rearview camera system control module

RHD vehicle

2 - Microphone IN (+) for the microphone unit in front roof module (left front microphone)

3 - Microphone IN (-) for the microphone unit in front roof module (left front microphone)

5 - Cable (-) for the rearview camera system control module

8 - Microphone IN (+) for the microphone unit in front roof module (right front microphone)

9 - Microphone IN (-) for the microphone unit in front roof module (right front microphone)

11 - Cable (+) for the rearview camera system control module

All pins are connected to the external audio source connection -R199-.

  1. LF-In ground
  2. Right LF-In
  3. USB (+5V) not on the internet access control module -J666- (from MY 13)
  4. USB (ground)
  5. Not assigned
  6. Detect not on the internet access control module -J666- (from MY 13)
  7. Left LF-In
  8. LF-In ground shielding
  9. FBAS wire (+)
  10. FBAS wire (-)
  11. iPod data
  12. iPod data

Following pins are also still connected with the internet access control module -J666- (from MY 13).

3 - USB (+5 V)

4 - USB (ground)

6 - Detect

9 - Switch-on signal to telephone base plate -R126

10 - Data from multimedia system control head -E380

11 - Data to the multimedia system control head

12 - Terminal 31

13 - Telephone base plate -R126- DIAG signal

14 - Res BT from multimedia system control head

15 - Terminal 30

16 - Ground (GND) to multimedia system control head

  1. IN
  2. OUT

All pins are connected to the front information display control head -J685-.

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

All pins are connected with the external audio source connection -R199- /internet access control module -J666- (from MY 13).

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

Scheme 232

Scheme 232: MULTIFUNCTION STEERING WHEEL OVERVIEW, THROUGH MY 12
  1. Multifunction Buttons
  2. Screw 3 Nm

Scheme 233

Scheme 233: 4-SPOKE STEERING WHEEL OVERVIEW, FROM MY 13
  1. Steering Wheel Tiptronic Switch, Down -E439- Removing and installing, refer to «TIPTRONIC SWITCH, FROM MY 13»(/audi/a4/b8-2007-2012/remont/communication-devices/#communication-avant__tiptronic-switch-from-my-13)
  2. 4-Spoke Steering Wheel
  3. Steering Wheel Tiptronic Switch, Up -E438- Removing and installing, refer to «TIPTRONIC SWITCH, FROM MY 13»(/audi/a4/b8-2007-2012/remont/communication-devices/#communication-avant__tiptronic-switch-from-my-13)
  4. Screw 1.2 Nm
  5. Right Multifunction Buttons On Steering Wheel -E441- Removing and installing, refer to «MULTIFUNCTION BUTTONS, 4-SPOKE STEERING WHEEL, FROM MY 13»(/audi/a4/b8-2007-2012/remont/communication-devices/#communication-avant__multifunction-buttons-4-spoke-steering-wheel-from)
  6. Trim
  7. Left Multifunction Buttons On Steering Wheel -E440- Removing and installing, refer to «MULTIFUNCTION BUTTONS, 4-SPOKE STEERING WHEEL, FROM MY 13»(/audi/a4/b8-2007-2012/remont/communication-devices/#communication-avant__multifunction-buttons-4-spoke-steering-wheel-from)
  8. Bolt 1.2 Nm

Scheme 234

Scheme 234: 3-SPOKE STEERING WHEEL OVERVIEW, FROM MY 13
  1. Steering Wheel Tiptronic Switch, Down -E439- Removing and installing, refer to «TIPTRONIC SWITCH, FROM MY 13»(/audi/a4/b8-2007-2012/remont/communication-devices/#communication-avant__tiptronic-switch-from-my-13) .
  2. 3-Spoke Steering Wheel
  3. Steering Wheel Tiptronic Switch, Up -E438- Removing and installing, refer to «TIPTRONIC SWITCH, FROM MY 13»(/audi/a4/b8-2007-2012/remont/communication-devices/#communication-avant__tiptronic-switch-from-my-13) .
  4. Bolt 1, 2 Nm
  5. Trim
  6. Right Multifunction Buttons On Steering Wheel -E441- Removing and installing, refer to «MULTIFUNCTION BUTTONS, 3-SPOKE STEERING WHEEL, FROM MY 13»(/audi/a4/b8-2007-2012/remont/communication-devices/#communication-avant__multifunction-buttons-3-spoke-steering-wheel-from) .
  7. Left Multifunction Buttons On Steering Wheel -E440- Removing and installing, refer to «MULTIFUNCTION BUTTONS, 3-SPOKE STEERING WHEEL, FROM MY 13»(/audi/a4/b8-2007-2012/remont/communication-devices/#communication-avant__multifunction-buttons-3-spoke-steering-wheel-from) .

Scheme 235

Scheme 235: COMPONENT LOCATION OVERVIEW, THROUGH 10.31.2008
  1. Navigation System with CD Drive Control Module -J401- (MMI basic plus Navigation) Connector assignment, Navigation Basic Plus, refer to «NAVIGATION BASIC PLUS CONNECTORS»(/audi/a4/b8-2007-2012/remont/communication-devices/#communication-avant) . Removing and installing (basic plus), refer to «NAVIGATION SYSTEM WITH CD DRIVE CONTROL MODULE -J401-, MMI BASIC PLUS»(/audi/a4/b8-2007-2012/remont/communication-devices/#communication-avant__navigation-system-with-cd-drive-control) .
  2. Radio Removal Tool T10057
  3. Nut 5 Nm
  4. Nut 5 Nm
  5. Radio Removal Tool T10057
  6. Nut 5 Nm
  7. Navigation System with CD Drive Control Module -J401- (MMI) Connector assignment, MMI through 10.31.2008, refer to «MMI NAVIGATION CONNECTORS, THROUGH 10.31.2008»(/audi/a4/b8-2007-2012/remont/communication-devices/#communication-avant) . For removing and installing, MMI through 10.31.2008, refer to «NAVIGATION SYSTEM WITH CD DRIVE CONTROL MODULE -J401-, MMI THROUGH 10.31.2008»(/audi/a4/b8-2007-2012/remont/communication-devices/#communication-avant__navigation-system-with-cd-drive-control) .
  8. Nut 5 Nm

Scheme 236

Scheme 236: COMPONENT LOCATION OVERVIEW, FROM 11.03.2008
  1. Radio/Telephone/Navigation System Antenna -R52- Overview, Avant, refer to «ANTENNA SYSTEM»(/audi/a4/b8-2007-2012/remont/communication-devices/#communication-avant__antenna-system) .
  2. Nut 6 Nm
  3. Information Electronics Control Module 1 -J794- Connector assignment, MMI from 11.03.2008, refer to «MMI NAVIGATION CONNECTORS, FROM 11.03.2008»(/audi/a4/b8-2007-2012/remont/communication-devices/#communication-avant__mmi-navigation-connectors-from-11032008) . Removing and installing, refer to «INFORMATION ELECTRONICS CONTROL MODULE 1 -J794»(/audi/a4/b8-2007-2012/remont/communication-devices/#communication-avant__information-electronics-control-module-1-j794) .
  4. Radio Removal Tool T10057

Scheme 237

Scheme 237: MMI NAVIGATION, BASIC PLUS, SYSTEM OVERVIEW
  1. Instrument Cluster Control Module -J285- in the instrument panel
  2. Steering Column Electronics Control Module -J527- on steering column at steering column switch
  3. Multifunction Steering Wheel
  4. Front Information Display Control Head -J685- in center of the instrument panel
  5. Multimedia Control Head -E380- in the center console
  6. Radio, Telephone, Navigation System Antenna -R52- roof antenna
  7. Window Antenna
  8. Antenna Amplifier 3 -R112- Behind the left luggage compartment side trim panel
  9. Navigation System With Cd Drive Control Module -J401- in the left side of the glove compartment Contains front information display control head control module -J523- /radio -R- /CD player -R89
  10. Data Bus On Board Diagnostic Interface -J533- Behind the glove compartment on the left side
  11. Digital Sound System Control Module -J525- behind the luggage compartment left side trim
  12. Sound Systems
  13. Microphone Unit In Front Roof Module -R164- inside the Front Interior Lamp -W1

Scheme 238

Scheme 238: MMI NAVIGATION SYSTEM OVERVIEW, THROUGH 10.31.2008
  1. Front Information Display Control Head -J685- in center of the instrument panel
  2. Front Information Display Control Head Control Module -J523-, behind the instrument panel
  3. Multimedia Control Head -E380- in the center console
  4. Data Bus On Board Diagnostic Interface -J533- Behind the glove compartment on the left side
  5. Instrument Cluster Control Module -J285- in the instrument panel
  6. Steering Column Electronics Control Module -J527- on steering column at steering column switch
  7. Multifunction Steering Wheel
  8. Radio -R- with Speech Input Control Module -J507- behind left luggage compartment side trim
  9. Navigation System with CD Drive Control Module -J401- behind luggage compartment left side trim
  10. Radio, Telephone, Navigation System Antenna -R52- roof antenna
  11. Digital Sound System Control Module -J525- behind the luggage compartment left side trim
  12. Sound Systems

Scheme 239

Scheme 239: MMI NAVIGATION, MINIMUM EQUIPMENT SYSTEM OVERVIEW, FROM 11.03.2008
  1. Radio, Telephone, Navigation System Antenna -R52- roof antenna
  2. Front Information Display Control Head -J685- in center of the instrument panel
  3. Information Electronics Control Module 1 -J794- inside the instrument panel
  4. Multimedia Control Head -E380- in the center console
  5. Data Bus On Board Diagnostic Interface -J533- Behind the Glove Compartment On the Left Side
  6. MOST Bus
  7. Radio -R- behind the left luggage compartment left side trim
  8. Digital Sound System Control Module -J525- behind the luggage compartment left side trim
  9. CD Changer -R41- inside the glove compartment
  10. External Audio Source Connection -R199- (interface) in the glove compartment

Scheme 240

Scheme 240: MMI NAVIGATION, MAXIMUM EQUIPMENT SYSTEM OVERVIEW, FROM 11.03.2008
  1. Radio, Telephone, Navigation System Antenna -R52- roof antenna
  2. Front Information Display Control Head -J685- in center of the instrument panel
  3. Information Electronics Control Module 1 -J794- inside the instrument panel
  4. Multimedia Control Head -E380- in the center console
  5. Data Bus On Board Diagnostic Interface -J533- Behind the Glove Compartment On the Left Side
  6. Steering Column Electronics Control Module -J527- on steering column at steering column switch
  7. Multifunction Steering Wheel
  8. Instrument Cluster Control Module -J285- in the instrument panel
  9. Digital Sound System Control Module -J525- behind the luggage compartment left side trim
  10. Radio -R- behind the left luggage compartment left side trim
  11. Microphone Unit in Front Roof Module -R164- (Right Front Microphone -R141-) inside the Front Interior Lamp -W1

Scheme 241

Scheme 241: MMI NAVIGATION CONNECTORS, THROUGH 10.31.2008

A - 8-pin multi-pin connector (T8n)

B - MOST bus

C - Radio, Telephone, Navigation System Antenna -R52- GPS connection (roof antenna)

Note. Unlisted connector terminals are not used.

1 - Terminal 31

2 - Terminal 30

5 - Ring-break diagnostic cable

  1. IN
  2. OUT