AUTOMOTIVE ELECTRICIANS

AUDI A4 2014 — CAN separating connector . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A4 2014 - ABS control unit - Power steering control unit - Active steering control unit



Wiring Diagram  AUDI A4 2014 - ABS control unit - Power steering control unit - Active steering control unit
J104 ABS control unit
J500 Power steering control unit
J792 Active steering control unit
T6h 6-pin connector
T10h 10-pin connector
T17c 17-pin connector, black
T17r 17-pin connector, white
T38a 38-pin connector
T46i 46-pin connector
*Driver side push-in bridge, brown

Wiring Diagram AUDI A4 2014 - Digital sound package control unit - Telephone transmitter and receiver unit



J525 Digital sound package control unit
R36 Telephone transmitter and receiver unit
T17b 17-pin connector, blue
T18b 18-pin connector
T32h 32-pin connector
T46i 46-pin connector
T54a 54-pin connector
*Driver side push-in bridge, brown
*2According to equipment

Wiring Diagram AUDI A4 2014 - Driver door control unit - Onboard supply control unit



J386 Driver door control unit
J519 Onboard supply control unit
T10p 10-pin connector, red
T16b 16-pin connector
T17e 17-pin connector, red
T27a 27-pin connector, lower part of A-pillar, driver side
T46i 46-pin connector
*Driver side push-in bridge, brown
*2see applicable current flow diagram for convenience system
*3see applicable current flow diagram for seat adjustment

Wiring Diagram AUDI A4 2014 -



T46s 46-pin connector
*Driver side push-in bridge, brown

Wiring Diagram AUDI A4 2014 - Control unit in dash panel insert - Auxiliary heater control unit - Steering column electronics control unit - Data bus diagnostic interface - Control unit for electromechanical parking brake



J285 Control unit in dash panel insert
J364 Auxiliary heater control unit
J527 Steering column electronics control unit
J533 Data bus diagnostic interface
J540 Control unit for electromechanical parking brake
T6a 6-pin connector
T16f 16-pin connector
T17f 17-pin connector, brown
T20d 20-pin connector
T30a 30-pin connector
T32f 32-pin connector
T46s 46-pin connector
   B672 Connection 1 (running gear/dash panel insert CAN bus, high), in main wiring harness
   B673 Connection 2 (running gear/dash panel insert CAN bus, high), in main wiring harness
   B676 Connection 1 (running gear/dash panel insert CAN bus, low), in main wiring harness
   B677 Connection 2 (running gear/dash panel insert CAN bus, low), in main wiring harness
*Front passenger side push-in bridge, brown
*2According to equipment

Wiring Diagram AUDI A4 2014 - Data bus diagnostic interface - Radio - Connection for external audio sources



J533 Data bus diagnostic interface
R Radio
R199 Connection for external audio sources
T12t 12-pin connector
T16l 16-pin connector
T20d 20-pin connector
T46s 46-pin connector
*Front passenger side push-in bridge, brown

Wiring Diagram AUDI A4 2014 - Climatronic control unit - Front passenger door control unit - Steering column electronics control unit - Data bus diagnostic interface



J255 Climatronic control unit
J387 Front passenger door control unit
J527 Steering column electronics control unit
J533 Data bus diagnostic interface
T10m 10-pin connector, red
T16f 16-pin connector
T17f 17-pin connector, brown
T20d 20-pin connector
T20e 20-pin connector
T27c 27-pin connector, lower part of A-pillar, front passenger side
T46s 46-pin connector
   B398 Connection 2 (convenience CAN bus, high), in main wiring harness
   B407 Connection 2 (convenience CAN bus, low), in main wiring harness
*Front passenger side push-in bridge, brown
*2see applicable current flow diagram for convenience system
*3see applicable current flow diagram for seat adjustment

Wiring Diagram AUDI A4 2014 -



*Front passenger side push-in bridge, brown


AUDI A4 2014 Overview of control units

Overview of control units
  Note:
♦ Overview also valid for Avant models (5-door)!
   
1 -  Right​ gas​ discharge​ light​ control​ unit​ -J344-
q   Location and connector, up to model year 2012: → Chapter
q   Location and connector, from model year 2013: → Chapter
2 -  Auxiliary heater control unit -J364-
q   Location and connectors: → Chapter
3 -  Radiator fan control unit -J293- / Radiator fan -V7-
q   Location and connectors for models with 400 W or 600 W radiator fan: → chapter
q   Location and connectors for models with 800 W or 1000 W radiator fan: → chapter
3 -  Radiator fan control unit 2 -J671- / radiator fan 2 -V177-
q   Location and connectors for models with 800 W or 1000 W radiator fan: → chapter
4 -  Wiper motor control unit -J400-
q   Location and connector: → Chapter
5 -  Engine control unit -J623-
q   Location and connectors for models with left-hand drive (with -T60- and -T94-): → Chapter
q   Location and connectors for models with right-hand drive (with -T60- and -T94-): → Anchor
q   Location and connectors for models with left-hand drive -T91- and -T105-): → Anchor
q   Location and connectors for models with right-hand drive (with -T91- and -T105-): → Anchor

   
6 -  Automatic​ gearbox​ control​ unit -J217- / Mechatronics​ for​ dual​ clutch​ gearbox​ -J743-
q   Location and connectors: → Chapter
7 -  ABS control unit -J104-
q   Location and connector: → Chapter
8 -  Left gas discharge light control unit -J343-
q   Location and connector, up to model year 2012: → Chapter
q   Location and connector, from model year 2013: → Chapter
9 -  Garage door operation control unit -J530-
q   Location and connector: → Chapter
10 -  Adaptive​ cruise​ control​ unit -J428-
q   Location and connectors: → Chapter



AUDI A4 2014 Engine control unit J623

Engine control unit -J623-
Location engine control unit -J623- for models with left-hand drive:
In electronics box in plenum chamber, driver side
  Note:
t  Figure shows left-hand drive model.
t  Figure for right-hand drive models → Anchor.
   
A -  Engine control unit -J623-
B -  94-pin connector, on wiring harness -T94-
C -  60-pin connector, on wiring harness -T60-

Location engine control unit -J623- for models with right-hand drive:
In electronics box in plenum chamber, driver side
  Note:
t  Figure​ shows​ right-hand drive​ model.
t  Figure for left-hand drive vehicles → Chapter
   
A -  Engine control unit -J623-
B -  94-pin connector -T94-
C -  60-pin​​ connector​ -T60-

Location engine control unit -J623- for models with left-hand drive (with -T91- and -T105-):
In electronics box in plenum chamber, driver side
  Note:
t  Figure shows left-hand drive model.
t  Figure for right-hand drive models → Anchor.
   
A -  Engine control unit -J623-
B -  91-pin​​ connector​ -T91-
C -  105-pin​​ connector​ -T105-

Location engine control unit -J623- for models with right-hand drive (with -T91- and -T105-):
In electronics box in plenum chamber, driver side
  Note:
t  Figure​ shows​ right-hand drive​ model.
t  Figure for left-hand drive models → Anchor.
   
A -  Engine control unit -J623-
B -  91-pin​​ connector​ -T91-
C -  105-pin​​ connector​ -T105-



AUDI A4 2014 Left gas discharge light control unit J343 , up to model year 2012

Left gas discharge light control unit -J343-, up to model year 2012
Fitting location:
on left headlight.
   
A -  14-pin connector -T14a-
B -  Left gas discharge light control unit -J343-
C -  Power output module for left headlight -J667-
D -  Left LED module for daytime running light and side light -L176-



AUDI A4 2014 Right gas discharge light control unit J344 , up to model year 2012

Right gas discharge light control unit -J344-, up to model year 2012
Fitting location:
on right headlight.
   
A -  14-pin connector -T14b-
B -  Right​ gas​ discharge​ light​ control​ unit​ -J344-
C -  Power​ output​ module​ for​ right​ headlight -J668-
D -  Right LED module for daytime running light and side light -L177-



AUDI A4 2014 Left gas discharge light control unit J343 , from model year 2013

Left gas discharge light control unit -J343-, from model year 2013
Fitting location:
on left headlight.
   
A -  Power output module for left headlight -J667-
B -  Control unit for left daytime running light and side light -J860-
C -  14-pin connector -T14a-
D -  Left gas discharge light control unit -J343-
E -  Output module for left side marker light -J986-



AUDI A4 2014 Right gas discharge light control unit J344 , from model year 2013

Right gas discharge light control unit -J344-, from model year 2013
Fitting location:
on right headlight.
   
A -  Power​ output​ module​ for​ right​ headlight -J668-
B -  Control unit for left daytime running light and side light -J861-
C -  14-pin connector -T14b-
D -  Right​ gas​ discharge​ light​ control​ unit​ -J344-
E -  Output module for right side marker light -J987-



AUDI A4 2014 Auxiliary heater control unit J364

Auxiliary heater control unit -J364-
Fitting location:
behind right wheel housing.
   
A -  Auxiliary heater control unit -J364-
A1 -  6-pin connector -T6a-
A2 -  2-pin connector -T2ds-



AUDI A4 2014 Automatic​ gearbox​ control​ unit J217 / Mechatronics​ for​ dual​ clutch​ gearbox​ J743

Automatic​ gearbox​ control​ unit -J217- / Mechatronics​ for​ dual​ clutch​ gearbox​ -J743-
Fitting location:
In gearbox housing.
   
A -  Automatic​ gearbox​ control​ unit -J217- / Mechatronics​ for​ dual​ clutch​ gearbox​ -J743-
A1 -  16-pin connector -T16r-
A2 -  8-pin connector -T8al-
A3 -  14-pin connector -T14h-
A4 -  14-pin connector -T14i-



AUDI A4 2014 Wiper motor control unit J400

Wiper motor control unit -J400-
Fitting location:
in plenum chamber.
   
A -  Wiper motor control unit -J400-
A1 -  4-pin connector -T4g-



AUDI A4 2014 ABS control unit J104

ABS control unit -J104-
Fitting location:
in left of engine compartment.
   
A -  ABS control unit -J104-
A1 -  38-pin connector -T38a-



AUDI A4 2014 400 W or 600 W radiator fan

400 W or 600 W radiator fan
Fitting location:
on radiator.
  Note:
Radiator fan 2 -V177- present depending on engine variant.
   
A -  Radiator fan control unit -J293-
A1 -  4-pin connector, black -T4bi-
B -  Radiator fan -V7-
B1 -  2-pin connector, black -T2kl-
C -  Radiator fan 2 -V177-
C1 -  2-pin connector, black -T2km-



AUDI A4 2014 800 W or 1000 W radiator fan

800 W or 1000 W radiator fan
Fitting location:
on radiator.
   
A -  Radiator fan control unit -J293-
A1 -  4-pin connector -T4bm-
A2 -  Radiator fan -V7-
B -  Radiator fan control unit 2 -J671-
B1 -  4-pin connector -T4bl-
B2 -  Radiator fan 2 -V177-



AUDI A4 2014 Garage door operation control unit J530

Garage door operation control unit -J530-
Fitting location:
at inner centre of radiator.
   
A -  Garage door operation control unit -J530-
A1 -  4-pin connector -T4a-



AUDI A4 2014 Adaptive​ cruise​ control​ unit J428

Adaptive​ cruise​ control​ unit -J428-
Fitting location:
In front bumper grill cover on right.
   
A -  Adaptive​ cruise​ control​ unit -J428-
B -  8-pin connector, black -T8a-

   


AUDI A4 2014 Overview of control units in interior of vehicle

Overview of control units in interior of vehicle
  Note:
♦ Overview also valid for Avant models (5-door)!
   
1 -  Headlight range control unit -J431-
q   Location and connectors: → Chapter
1 -  Control unit for bend lighting and headlight range control​ -J745-
q   Location and connectors: → Chapter
2 -  Fresh air blower control unit -J126-
q   Location and connector: → Chapter
3 -  Front information display and operating unit control unit -J523-
q   for models with MMI Basic
q   Location: behind glove compartment
q   for models with MMI High: → Item
3 -  CD changer -R41- / DVD changer -R161-
q   for models with MMI
q   Location and connectors: → Chapter
q   for models without MMI → Item
3 -  Chip card reader control unit -J676-
q   Location and connector: → Chapter
4 -  Front passenger door control unit -J387-
q   Location and connectors for models with left-hand drive: → Chapter
q   Location and connectors for models with right-hand drive: → Anchor
5 -  Display unit for front information display and operating unit control unit -J685-
q   Location and connectors: → Chapter
6 -  Automatic anti-dazzle interior mirror -Y7- with Rain and light detector sensor -G397-
q   Location: → chapter
7 -  Sliding​ sunroof​ adjustment​ control​ unit -J245- with sliding sunroof motor -V1-
q   Location and connector: → Chapter

   
8 -  Telephone transmitter and receiver unit -R36-
q   Location and connectors: → Chapter
8 -  Front passenger seat adjustment with memory control unit -J521-
q   Location: under front passenger seat
9 -  Rear right door control unit -J389-
q   Location: in rear right door
10 -  Multimedia​ system​ operating​ unit​ -E380-
q   Location: and connector: → chapter
11 -  Rear left door control unit -J388-
q   Location: in rear left door
12 -  Fuel pump control unit -J538-
q   Location: under rear seat bench
13 -  Airbag​ control​ unit​ -J234-
q   Location: and connector: → chapter
14 -  Seat and steering column adjustment control unit with memory -J136-
q   Fitting location: under driver seat
14 -  Active steering control unit -J792-
q   Location and connectors: → Chapter
15 -  Driver door control unit -J386-
q   Location and connectors for models with left-hand drive: → Chapter
q   Location and connectors for models with right-hand drive: → Anchor
16 -  Control unit in dash panel insert -J285-
q   Location and connector: → Chapter
17 -  16-pin connector -T16- diagnostic connection
q   Location: → chapter
17 -  Onboard supply control unit -J519-
q   Location and connectors for models with left-hand drive: → Chapter
q   Location and connectors for models with right-hand drive: → Anchor

   
18 -  Steering column electronics control unit -J527-
q   Location: on steering column
18 -  Electronic steering column lock control unit -J764-
q   Location: on steering column
18 -  Multifunction steering wheel control unit -J453-
q   Location: on steering column
19 -  Climatronic control unit -J255-
q   Location and connectors: → Chapter
20 -  Front information display and operating unit control unit -J523-
q   for models with MMI High
q   Location: in middle part dash panel
20 -  Control unit for information electronics 1 -J794-
q   for models with MMI
q   Location and connectors: → Chapter
20 -  Radio -R- with integrated CD changer -R41- / DVD changer -R161-
q   for models without MMI
q   Location and connectors: → Chapter
q   for models with MMI: → Item
21 -  Data bus diagnostic interface -J533-
q   Location and connectors: → Chapter

   


AUDI A4 2014 Overview of control units in rear part of vehicle - saloon models (4-door) only

Overview of control units in rear part of vehicle - saloon models (4-door) only
1 -  Convenience system central control unit -J393-
q   Location: → chapter
q   Connectors: → chapter
q   Overview of Avant models (5-door): → Item
1 -  Aerial​ amplifier​ for​ mobile​ telephone -R86-
q   Fitting location: → Chapter
q   Overview of Avant models (5-door): → Item
1 -  Electronically controlled damping control unit -J 250-
q   Fitting location: → Chapter
q   Connector: → chapter
q   Overview of Avant models (5-door): → Item
1 -  Reversing camera system control unit -J772-
q   Fitting location: → Chapter
q   Overview of Avant models (5-door): → Item
1 -  Trailer detector control unit -J345-
q   Fitting location: → Chapter
q   Connectors: → chapter
q   Overview of Avant models (5-door): → Item
1 -  Park assist steering control unit -J791-
q   Fitting location: → Chapter
q   Connectors: → chapter
q   Overview of Avant models (5-door): → Item
1 -  Control​ unit​ for​ electromechanical​ parking​ brake -J540-
q   Fitting location: → Chapter
q   Overview of Avant models (5-door): → Item
2 -  Lane change assist control unit -J769-
q   Location: on inside of rear bumper
q   Overview of Avant models (5-door): → Item
3 -  Digital sound package control unit -J525-
q   Location: in left of luggage compartment, behind side trim.
q   Overview of Avant models (5-door): → Item
3 -  Radio -R- (K-box)
q   for models with MMI High
q   Location: in left of luggage compartment, behind side trim.
q   Overview of Avant models (5-door): → Item

   
3 -  Satellite radio -R146-
q   Location: in left of luggage compartment, behind side trim.
q   Overview of Avant models (5-door): → Item
3 -  Digital radio -R147-
q   Location: in left of luggage compartment, behind side trim.
q   Overview of Avant models (5-door): → Item
3 -  Navigation​ system​ with​ CD​ drive​ control​ unit​ -J401-
q   Location: in left of luggage compartment, behind side trim.
q   Overview of Avant models (5-door): → Item
3 -  TV tuner -R78-
q   Location: in left of luggage compartment, behind side trim.
q   Overview of Avant models (5-door): → Item
4 -  Lane change assist control unit 2 -J770-
q   Location: on inside of rear bumper
q   Overview of Avant models (5-door): → Item
5 -  Voltage stabiliser -J532-
q   Fitting location: → Chapter
q   Overview of Avant models (5-door): → Item
6 -  Battery​ monitor​ control​ unit​ -J367-
q   Location and connector: → Chapter
q   Overview of Avant models (5-door): → Item
7 -  All-wheel drive control unit -J492-
q   Location and connector: → Chapter
q   Overview of Avant models (5-door): → Item

   


AUDI A4 2014 Overview of control units in rear part of vehicle - Avant models (5-door) only

Overview of control units in rear part of vehicle - Avant models (5-door) only
1 -  All-wheel drive control unit -J492-
q   Fitting location and connector: → Anchor
2 -  Convenience system central control unit -J393-
q   Location: → chapter
q   Connectors: → chapter
2 -  Aerial​ amplifier​ for​ mobile​ telephone -R86-
q   Fitting location: → Chapter
2 -  Electronically controlled damping control unit -J 250-
q   Fitting location: → Chapter
q   Connector: → chapter
2 -  Reversing camera system control unit -J772-
q   Fitting location: → Chapter
2 -  Trailer detector control unit -J345-
q   Fitting location: → Chapter
q   Connectors: → chapter
2 -  Park assist steering control unit -J791-
q   Fitting location: → Chapter
q   Connectors: → chapter
2 -  Control​ unit​ for​ electromechanical​ parking​ brake -J540-
q   Fitting location: → Chapter
3 -  Lane change assist control unit -J769-
q   Location: on inside of rear bumper
4 -  Digital sound package control unit -J525-
q   Location: in left of luggage compartment, behind side trim.
4 -  Radio -R- (K-box)
q   for models with MMI High
q   Location: in left of luggage compartment, behind side trim.
4 -  Satellite radio -R146-
q   Location: in left of luggage compartment, behind side trim.
4 -  Digital radio -R147-
q   Location: in left of luggage compartment, behind side trim.
4 -  Navigation​ system​ with​ CD​ drive​ control​ unit​ -J401-
q   Location: in left of luggage compartment, behind side trim.
4 -  TV tuner -R78-
q   Location: in left of luggage compartment, behind side trim.

   
5 -  Lane change assist control unit 2 -J770-
q   Location: on inside of rear bumper
6 -  Voltage stabiliser -J532-
q   Fitting location: → Chapter
7 -  Battery​ monitor​ control​ unit​ -J367-
q   Location and connector: → Chapter



AUDI A4 2014 Control unit for headlight range control J431 / control unit for bend lighting and headlight range control J745

Control unit for headlight range control -J431- / control unit for bend lighting and headlight range control -J745-
Location:
in front passenger footwell, behind the glove compartment
   
A -  Control unit for headlight range control -J431- / control unit for bend lighting and headlight range control -J745-
Connector on control unit for headlight range control -J431-:
A1 -  26-pin connector -T26a-
Connector on control unit for cornering light and headlight range control -J745-
A1 -  26-pin connector -T26b-



AUDI A4 2014 Fresh air blower control unit J126

Fresh air blower control unit -J126-
Location:
in front passenger footwell, behind the glove compartment
   
A -  Fresh air blower control unit -J126-
A1 -  6-pin connector, brown -T6y-



AUDI A4 2014 Driver door control unit J386

Driver door control unit -J386-
Location door control unit, driver side -J386- for models with left-hand drive:
In driver door.
  Note:
t  Figure shows left-hand drive model.
t  Figure for right-hand drive models → Anchor.
   
A -  Driver door control unit -J386-
A1 -  32-pin connector -T32j-
A2 -  16-pin connector -T16m-
A3 -  20-pin connector -T20f-
A4 -  6-pin connector -T6am-

Location door control unit, driver side -J386- for models with right-hand drive:
In driver door.
  Note:
t  Figure​ shows​ right-hand drive​ model.
t  Figure for left-hand drive models → Anchor.
   
A -  Driver door control unit -J386-
A1 -  32-pin connector -T32j-
A2 -  16-pin connector -T16m-
A3 -  20-pin connector -T20f-
A4 -  6-pin connector -T6am-



AUDI A4 2014 Front passenger door control unit J387

Front passenger door control unit -J387-
Location door control unit, front passenger side -J387- for models with left-hand drive:
in front passenger door
  Note:
t  Figure shows left-hand drive model.
t  Figure for right-hand drive models → Anchor.
   
A -  Front passenger door control unit -J387-
A1 -  32-pin connector -T32l-
A2 -  16-pin connector -T16n-
A3 -  20-pin connector -T20g-
A4 -  6-pin connector -T6ao-

Location door control unit, front passenger side -J387- for models with right-hand drive:
in front passenger door
  Note:
t  Figure​ shows​ right-hand drive​ model.
t  Figure for left-hand drive models → Anchor.
   
A -  Front passenger door control unit -J387-
A1 -  32-pin connector -T32l-
A2 -  16-pin connector -T16n-
A3 -  20-pin connector -T20g-
A4 -  6-pin connector -T6ao-



AUDI A4 2014 Automatic anti-dazzle interior mirror Y7 with Rain and light detector sensor G397

Automatic anti-dazzle interior mirror -Y7- with Rain and light detector sensor -G397-
Location:
at front of roof side member.
   
1 -  Lane departure warning control unit -J759-
2 -  Automatic anti-dazzle interior mirror -Y7- with Rain and light detector sensor -G397-
3 -  Humidity sender -G355-
4 -  Main beam assist control unit -J844-



AUDI A4 2014 Sliding​ sunroof​ adjustment​ control​ unit J245 with sliding sunroof motor V1

Sliding​ sunroof​ adjustment​ control​ unit -J245- with sliding sunroof motor -V1-
Location:
in roof module, on upper front roof frame
Connector:
   
A -  10-pin connector -T10c-



AUDI A4 2014 Onboard supply control unit J519

Onboard supply control unit -J519-
Location onboard supply control unit -J519- for models with left-hand drive:
Driver side dash panel, bottom.
  Note:
t  Figure shows left-hand drive model.
t  Figure for right-hand drive models → Anchor.
   
A -  Onboard supply control unit -J519-
A1 -  17-pin connector, black (connector D) -T17l-
A2 -  17-pin connector, brown (connector E) -T17m-
A3 -  17-pin connector, red (connector F) -T17n-
A4 -  6-pin​ connector,​ green​ (connector​ G) -T6f-
A5 -  32-pin connector, grey (connector A) -T32a-
A6 -  16-pin connector, brown (connector C) -T16b-
A7 -  32-pin connector, black (connector B) -T32b-

Location onboard supply control unit -J519- for models with right-hand drive:
Driver side dash panel, bottom.
  Note:
t  Figure​ shows​ right-hand drive​ model.
t  Figure for left-hand drive models → Anchor.
   
A -  Onboard supply control unit -J519-
A1 -  17-pin connector, black (connector D) -T17l-
A2 -  17-pin connector, brown (connector E) -T17m-
A3 -  17-pin connector, red (connector F) -T17n-
A4 -  6-pin​ connector,​ green​ (connector​ G) -T6f-
A5 -  32-pin connector, grey (connector A) -T32a-
A6 -  16-pin connector, brown (connector C) -T16b-
A7 -  32-pin connector, black (connector B) -T32b-



AUDI A4 2014 Active steering control unit J792

Active steering control unit -J792-
Location:
Under the carpet in the driver's footwell
   
4 -  Active steering control unit -J792-
Connectors:
1 -  5-pin connnector, black -T5d-
2 -  8-pin connector, black -T8g-
3 -  10-pin connector, black -T10h-



AUDI A4 2014 Radio R (with integrated CD changer R41 / DVD changer R161 )

Radio -R- (with integrated CD changer -R41- / DVD changer -R161-)
Location:
in middle part dash panel.
   
A -  Radio -R-
A1 -  Connector block, consisting of:
t  8-pin connector, brown -T8k-
t  8-pin connector, black -T16l-
t  12-pin connector, green -T12a-
t  12-pin connector, blue -T12s-
A2 -  1-pin connector, black -T1i- (connection DAB) / 1-pin connector, green -T1k- (connection SDARS)
A3 -  10-pin connector, black -T10v- (connection for display unit)
A4 -  2-pin connector, white -T2df- (AM / FM1 / FM2 connection)



AUDI A4 2014 CD changer R41 / DVD changer R161

CD changer -R41- / DVD changer -R161-
Location:
In glove compartment.
   
A -  CD changer -R41- / DVD changer -R161-
A1 -  8-pin connector -T8aa-
A2 -  2-pin connector -T2dm-



AUDI A4 2014 Chip card reader control unit J676

Chip card reader control unit -J676-
Location:
In glove compartment.
  Note:
t  Figure​ shows​ right-hand drive​ model.
t  for models with Japan navigation system only.
   
A -  Chip card reader control unit -J676-
A1 -  32-pin​​ connector​ -T32ja-



AUDI A4 2014 Display unit for front information display and operating unit control unit J685

Display unit for front information display and operating unit control unit -J685-
Location:
Dash panel - centre.
  Note:
Connector -A1- is given as an example for differing equipment versions
   
A -  Display unit for front information display and operating unit control unit -J685-
A1 -  Connector for models with MMI Basic up to August 2009:
t  10-pin connector, black -T10t-
A1 -  Connector for models with MMI High up to August 2009:
t  22-pin connector, black -T22b-
A1 -  Connectors for models with MMI Basic, from September 2009:
t  8-pin connector, black -T8ai-
t  4-pin connector, white -T4ao-
A1 -  Connectors for models with MMI High from September 2009:
t  8-pin connector, black -T8ai-
t  4-pin connector, black -T4an-
A1 -  Connector for radio chorus (radio low):
t  10-pin connector, red -T10u-
A1 -  Connector for radio concert / symphony (radio mid):
t  10-pin connector, black -T10w-



AUDI A4 2014 Control unit for information electronics 1 J794

Control unit for information electronics 1 -J794-
Location:
in middle part dash panel.
   
A -  Control unit for information electronics 1 -J794-
A1 -  1-pin connector, violet -T1p-
A2 -  1-pin connector, blue -T1n-
A3 -  Vacant
A4 -  4-pin​ connector,​ curry​ yellow -T4ap-
A5 -  for models with -J794- basic:
t  4-pin connector, violet -T4al-
A5 -  for models with -J794- high:
t  4-pin connector, grey -T4am-
A6 -  1-pin connector, green -T1o-
A7 -  Connector block, consisting of:
t  8-pin​ connector,​ brown​ -T8ah-
t  8-pin​ connector,​ black​ -T8ao-
t  12-pin connector, blue -T12x-
t  12-pin connector, green -T12y-
A8 -  2-pin​ connector​ -T2di-



AUDI A4 2014 Multimedia​ system​ operating​ unit​ E380

Multimedia​ system​ operating​ unit​ -E380-
Location:
on centre console.
   
A -  Multimedia​ system​ operating​ unit​ -E380-
A1 -  16-pin connector -T16c-



AUDI A4 2014 Climatronic control unit J255

Climatronic control unit -J255-
Location:
in middle part dash panel.
   
A -  Climatronic control unit -J255-
A1 -  16-pin connector -T16i-
A2 -  20-pin connector -T20e-



AUDI A4 2014 Airbag​ control​ unit​ J234

Airbag​ control​ unit​ -J234-
Location:
Under centre console
   
A -  Airbag​ control​ unit​ -J234-
A1 -  100-pin​​ connector​ -T100-



AUDI A4 2014 Telephone transmitter and receiver unit R36

Telephone transmitter and receiver unit -R36-
Location:
in front right footwell.
   
A -  Telephone transmitter and receiver unit -R36-
A1 -  Connector -B- (Aerial​ for​ Bluetooth)
A2 -  54-pin connector -T54a-
A3 -  Connector -C- (optical​ fibre)
A4 -  Connector -D- (telephone aerial)



AUDI A4 2014 16-pin connector T16 diagnostic connection

16-pin connector -T16- diagnostic connection
Location:
Driver side dash panel, bottom.
   
A -  16-pin connector -T16- diagnostic connection



AUDI A4 2014 Data bus diagnostic interface J533

Data bus diagnostic interface -J533-
Location:
below the dash panel.
   
A -  Data bus diagnostic interface -J533-
A1 -  2-pin connector -T2dl-
A2 -  20-pin connector -T20d-



AUDI A4 2014 Control unit in dash panel insert J285

Control unit in dash panel insert -J285-
Location:
in the dash panel.
   
A -  Control unit in dash panel insert -J285-
A1 -  32-pin connector, grey -T32f-



AUDI A4 2014 Control units on right in luggage compartment

Control units on right in luggage compartment
   
Location:
1 -  Convenience system central control unit -J393-
Connectors on convenience system central control unit -J393- → Chapter
2 -  Aerial​ amplifier​ for​ mobile​ telephone -R86-
3 -  Electronically controlled damping control unit -J 250-
Connector on electronically controlled damping control unit -J250- → Chapter
4 -  Reversing camera system control unit -J772-
5 -  Trailer detector control unit -J345-
Connectors on trailer detector control unit -J345- → Chapter
6 -  Park assist steering control unit -J791-
Connectors on park assist steering control unit -J791- → Chapter
7 -  Control​ unit​ for​ electromechanical​ parking​ brake -J540-
 
Connectors on convenience system central control unit -J393-
1 -  17-pin connector, black (connector A) -T17o-
2 -  32-pin connector, black (connector B) -T32c-
3 -  17-pin connector, brown (connector C) -T17p-
4 -  32-pin connector, blue (connector F) -T32e-
5 -  6-pin​ connector​ (connector​ G) -not assigned-
6 -  32-pin connector, grey (connector E) -T32d-
7 -  1-pin​ connector,​ grey​ (connector​ D) -T1h-

   
Connector on electronically controlled damping control unit -J250-
A -  Electronically controlled damping control unit -J 250-
Connector:
 -  47-pin connector -T47a-

   
Connectors on trailer detector control unit -J345-
A -  Trailer detector control unit -J345-
Connectors:
B -  16-pin connnector, black -T16d-
C -  12-pin connector, red -T12d-

   
Connectors on Parallel​ Parking​ Assistance​ Control​ Module -J791-
A -  16-pin connector, brown -T16e-
B -  12-pin connector, brown -T12e-
C -  12-pin connector, black -T12g-



AUDI A4 2014 All-wheel drive control unit J492

All-wheel drive control unit -J492-
Location for saloon (4-door) models:
In spare wheel recess, in front of battery
  Note:
t  Figure shows saloon (4-door) model.
t  Figure for Avant (5-door) model → Anchor.
   
1 -  All-wheel drive control unit -J492-
2 -  47-pin connector -T47b-

Location for Avant (5-door) models:
on right wheel housing.
  Note:
t  Figure shows Avant (5-door) model.
t  Figure for saloon (4-door) model → Anchor.
   
1 -  All-wheel drive control unit -J492-
2 -  47-pin connector -T47b-



AUDI A4 2014 Voltage stabiliser J532

Voltage stabiliser -J532-
Location:
In spare wheel recess, on left next to battery.
   
1 -  Voltage stabiliser -J532-
2 -  12-pin connector -T12aa-



AUDI A4 2014 Battery​ monitor​ control​ unit​ J367

Battery​ monitor​ control​ unit​ -J367-
Location:
at negative terminal of battery -A-.
   
1 -  Battery -A-
2 -  Battery​ monitor​ control​ unit​ -J367-
3 -  2-pin connector -T2x-

   


AUDI A4 2014 Overview of coupling stations

Overview of coupling stations
1 -  6-pin coupling station of A-pillar front passenger side
q   Connectors: -T5c-, -T10y-, -T10ab-, -T10ac-, -T17a-, -T17f-, -T17g-, -T17w-, -T17x-
q   Location for models with left-handdrive only: → chapter
q   Location for models with right-handdrive only: → Anchor
2 -  Fuse holder D -SD-
q   Connector: -T46s-
q   Location for models with left-handdrive only: → chapter
q   Location for models with right-handdrive only: → Anchor
3 -  Connection for external audio source -R199- (AMI)
q   Location for models with -R199- als Audi music interface (AMI): → chapter
q   Location for models with -R199- als Audi music interface (AMI - CAN): → chapter
q   Location for models with -R199- als AUX connection: → Item
4 -  Coupling station seat wiring front passenger side
q   Connectors: -T2db-, -T3h-, -T6k-, -T10m-, -T10n-
q   Location: → chapter
5 -  Connection for external audio source -R199- (AUX)
q   Location for models with -R199- als AUX connection: → chapter
6 -  Coupling station seat wiring driver side
q   Connectors: -T2da-, -T3k-, -T6l-, -T10o-, -T10p-
q   Location: → chapter
7 -  Relay- /fuse holder with Onboard supply control unit -J519-
q   Screw connection: 500
q   Location for models with left-handdrive only: → chapter
q   Location for models with right-handdrive only: → chapter
8 -  6-pin coupling station of A-pillar driver side
q   Connectors: -T5b-, -T17b-, -T17c-, -T17d-, -T17e-, -T17j-, -T46i-
q   Location for models with left-handdrive only: → chapter
q   Location for models with right-handdrive only: → Anchor
9 -  Relay- /Fuse holder B -SB-
q   Pin and screw connection: -T17q-, -T17r-, -T17t-, 501
q   Location for models with left-handdrive only: → chapter
q   Location for models with right-handdrive only: → Anchor



AUDI A4 2014 6-pin coupling station of A-pillar front passenger side

6-pin coupling station of A-pillar front passenger side
Location of 6-pin coupling station of A-pillar front passenger side for models with left-handdrive
in front passenger footwell on A-pillar, behind side trim
1)  applicable up to model year 2009
2)  applicable from model year 2010
  Note
t  Figure shows left-handdrive model.
t  Figure for right-handdrive models → Anchor.
   
1 -  10-pin connector, black -T10y-
2 -  10-pin connector, red -T10ab- → Note
2 -  17-pin connector, yellow -T17x- → Note
3 -  17-pin connector, blue -T17a-
4 -  17-pin connector, black -T17g-
5 -  17-pin connector, brown -T17f-
6 -  10-pin connector, grey -T10ac- → Note
6 -  17-pin connector, white -T17w- → Note
D -  5-pin connector, yellow -T5c- → Note

Location of 6-pin coupling station of A-pillar passenger side for models with right-handdrive
in front passenger footwell on A-pillar, behind side trim
3)  applicable up to model year 2009
4)  applicable from model year 2010
  Note
t  Figure shows right-handdrive model.
t  Figure for left-handdrive models → Anchor.
   
1 -  10-pin connector, black -T10y-
2 -  10-pin connector, red -T10ab- → Note
2 -  17-pin connector, yellow -T17x- → Note
3 -  17-pin connector, blue -T17a-
4 -  17-pin connector, black -T17g-
5 -  17-pin connector, brown -T17f-
6 -  10-pin connector, grey -T10ac- → Note
6 -  17-pin connector, white -T17w- → Note
D -  5-pin connector, yellow -T5c- → Note



AUDI A4 2014 Fuse holder D SD

Fuse holder D -SD-
Fitting location Fuse holder D -SD- for models with left-handdrive:
Below the dash panel cover, front passenger side
  Note
t  Figure shows left-handdrive model.
t  Figure for right-handdrive models → Anchor.
   
A -  46-pin connector, black, CAN disconnector, dash panel -T46s-

Fitting location Fuse holder D -SD- for models with right-handdrive:
Below the dash panel cover, front passenger side
  Note
t  Figure shows right-handdrive model.
t  Figure for left-handdrive models → Anchor.
   
A -  46-pin connector, black, CAN disconnector, dash panel -T46s-

   


AUDI A4 2014 Coupling station seat wiring driver side

Coupling station seat wiring driver side
Location:
under driver seat in vehicle floor
Connectors:
1 -  6-pin connector, green -T6l-
2 -  10-pin connector, red -T10p-
3 -  10-pin connector, black -T10o-
4 -  2-pin connector, blue-purple -T2da-
5 -  3-pin connector, yellow -T3k-
 


AUDI A4 2014 Coupling station seat wiring front passenger side

Coupling station seat wiring front passenger side
Location:
under front passenger seat in vehicle floor
Connectors:
1 -  6-pin connector, green -T6k-
2 -  10-pin connector, red -T10m-
3 -  10-pin connector, black -T10n-
4 -  2-pin connector, blue-purple -T2db-
5 -  3-pin connector, yellow -T3h-


AUDI A4 2014 6-pin coupling station of A-pillar driver side

6-pin coupling station of A-pillar driver side
Location of 6-pin coupling station of A-pillar driver side for models with left-handdrive
in driver's footwell on A-pillar, behind side trim
5)  applicable up to model year 2009
  Note
t  Figure shows left-handdrive model.
t  Figure for right-handdrive models → Anchor.
 
1 -  17-pin connector, green -T17j-
2 -  17-pin connector, red -T17e-
3 -  Not assigned
4 -  17-pin connector, brown -T17d-
5 -  17-pin connector, black -T17c-
6 -  17-pin connector, blue -T17b-
A -  5-pin connector, yellow -T5b- → Note
E -  46-pin connector, black, CAN disconnector -T46i-

Location of 6-pin coupling station of A-pillar driver side for models with right-handdrive:
in driver's footwell on A-pillar, behind side trim
6)  applicable up to model year 2009
  Note
t  Figure shows right-handdrive model.
t  Figure for left-handdrive models → Anchor.
   
1 -  17-pin connector, green -T17j-
2 -  17-pin connector, red -T17e-
3 -  Not assigned
4 -  17-pin connector, brown -T17d-
5 -  17-pin connector, black -T17c-
6 -  17-pin connector, blue -T17b-
A -  5-pin connector, yellow -T5b- → Note
E -  46-pin connector, black, CAN disconnector -T46i-



AUDI A4 2014 Relay- / Fuse holder B SB

Relay- /Fuse holder B -SB-
Location: Relay- /Fuse holder B -SB- for models with left-handdrive:
In electronics box in plenum chamber, driver side
   
  Note
t  Figure shows left-handdrive model.
t  Figure for right-handdrive models → Anchor.
G -  17-pin connector, red -T17q-
H -  17-pin connector, white -T17r-
I -  17-pin connector, brown -T17t-
M -  501Screw connection 2 (30), on relay plate

Location: Relay- /Fuse holder B -SB- for models with right-handdrive:
In electronics box in plenum chamber, driver side
  Note
t  Figure shows right-handdrive model.
t  Figure for left-handdrive models → Anchor.
   
G -  17-pin connector, red -T17q-
H -  17-pin connector, white -T17r-
I -  17-pin connector, brown -T17t-
M -  501Screw connection 2 (30), on relay plate



AUDI A4 2014 Relay- /fuse holder with Onboard supply control unit J519

Relay- /fuse holder with Onboard supply control unit -J519-
Location, relay- /fuse holder with Onboard supply control unit -J519- for models with left-handdrive:
Below the dash panel, driver side
  Note
t  Figure shows left-handdrive model.
t  Figure for right-handdrive models → Anchor.
   
6 -  500Screw connection 1 (30), on relay plate

Location, relay- /fuse holder with Onboard supply control unit -J519- for models with right-handdrive:
Below the dash panel, driver side
  Note
t  Figure shows right-handdrive model.
t  Figure for left-handdrive models → Anchor.
   
5 -  500Screw connection 1 (30), on relay plate



AUDI A4 2014 Connection for external audio source R199 als Audi music interface (AMI - MOST)

Connection for external audio source -R199- als Audi music interface (AMI - MOST)
Location:
In glove compartment.
  Note
for models with Audi music interface only (AMI - MOST) only.
   
A -  Connection for external audio source -R199-



AUDI A4 2014 Connection for external audio source R199 als Audi music interface (AMI - CAN)

Connection for external audio source -R199- als Audi music interface (AMI - CAN)
Location:
In glove compartment.
  Note
for models with Audi music interface only (AMI - CAN) only.
   
A -  Connection for external audio source -R199-
A1 -  12-pin connector -T12t-



AUDI A4 2014 Connection for external audio source R199 als AUX connection

Connection for external audio source -R199- als AUX connection
Location:
in centre console
  Note
for models with AUX connection only.
   
A -  Connection for external audio source -R199-

   
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