AUDI A4 2012 – Tail light cluster with LED, 4-door vehicle . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A4 2012 - Left brake and tail light bulb

J393	Convenience system central control unit
L46	Rear left fog light bulb
M6	Rear left turn signal bulb
M16	Left reversing light bulb
M21	Left brake and tail light bulb
M37	Rear left side marker bulb
M58	Left brake and tail light bulb 2
M69	Left brake, turn signal and tail light bulb
T17o	17-pin connector
T17p	17-pin connector
T32c	32-pin connector
371	Earth connection 6, in main wiring harness
372	Earth connection 7, in main wiring harness
B477	Connection 13, in main wiring harness
*	Only models with no US equipment
*2	Only models with US equipment
*3	see applicable current flow diagram for basic equipment
*4	Cross section depends on equipment

Wiring Diagram AUDI A4 2012 - Right brake and tail light bulb

J393	Convenience system central control unit
L47	Rear right fog light bulb
M8	Rear right turn signal bulb
M17	Right reversing light bulb
M22	Right brake and tail light bulb
M38	Rear right side marker bulb
M59	Right brake and tail light bulb 2
M70	Right brake, turn signal and tail light bulb
T17o	17-pin connector
T17p	17-pin connector
T32c	32-pin connector
372	Earth connection 7, in main wiring harness
*	Only models with no US equipment
*2	Only models with US equipment

AUDI A4 2012 Overview of control units in interior of vehicle

Overview of control units in interior of vehicle

♦ Overview also valid for Avant models (5-door)!

   

q	for models without MMI

q	Location and connectors for models with right-hand drive:

6 -	Automatic anti-dazzle interior mirror -Y7- with Rain and light detector sensor -G397-

q

Location:

9 -	Rear right door control unit -J389-

q	Location: in rear right door

12 -	Fuel pump control unit -J538-

q	Location: under rear seat bench

14 -	Active steering control unit -J792-

q	Location and connectors:

q	Location and connectors for models with right-hand drive:

q	Location and connectors for models with right-hand drive:

18 -	Electronic steering column lock control unit -J764-

q	Location: on steering column

19 -	Climatronic control unit -J255-

q	Location and connectors:

20 -	Control unit for information electronics 1 -J794-

q	for models with MMI

q	Location and connectors:

q	for models with MMI:

AUDI A4 2012 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

q	Connectors:

q	Overview of Avant models (5-door):

q	Overview of Avant models (5-door):

q	Connector:

q	Overview of Avant models (5-door):

q	Overview of Avant models (5-door):

q	Connectors:

q	Overview of Avant models (5-door):

q	Connectors:

q	Overview of Avant models (5-door):

q	Overview of Avant models (5-door):

q	Overview of Avant models (5-door):

q	Overview of Avant models (5-door):

q	Overview of Avant models (5-door):

AUDI A4 2012 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

q	Connectors:

q	Connector:

q	Connectors:

q	Connectors:

4 -	Digital sound package control unit -J525-

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 -	Navigation​ system​ with​ CD​ drive​ control​ unit​ -J401-

q	Location: in left of luggage compartment, behind side trim.

6 -  Voltage stabiliser -J532- q   Fitting location: AUDI A4 2012 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     Unlock Lifetime Access for This Car. 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 -T26b- AUDI A4 2012 Fresh air blower control unit J126 Fresh air blower control unit -J126- Location: in front passenger footwell, behind the glove compartment     Unlock Lifetime Access for This Car. A -  Fresh air blower control unit -J126- AUDI A4 2012 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 .

A -	Driver door control unit -J386-

A2 -	16-pin connector -T16m-

A4 -	6-pin connector -T6am-

.

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 2012 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 .

A -	Front passenger door control unit -J387-

A2 -	16-pin connector -T16n-

A4 -	6-pin connector -T6ao-

.

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 2012 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.

Rain and light detector sensor -G397-

4 -	Main beam assist control unit -J844-

AUDI A4 2012 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:

AUDI A4 2012 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.

t	Figure shows left-hand drive model.

t	Figure for right-hand drive models .

   

A -	Onboard supply control unit -J519-

A2 -	17-pin connector, brown (connector E) -T17m-

A4 -	6-pin​ connector,​ green​ (connector​ G) -T6f-

A6 -	16-pin connector, brown (connector C) -T16b-

Location onboard supply control unit -J519- for models with right-hand drive:

Driver side dash panel, bottom.

t	Figure​ shows​ right-hand drive​ model.

t	Figure for left-hand drive models .

   

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 2012 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:

2 -	8-pin connector, black -T8g-

AUDI A4 2012 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-

1-pin connector, black -T1i- (connection DAB) / 1-pin connector, green -T1k- (connection SDARS)

A4 -	2-pin connector, white -T2df- (AM / FM1 / FM2 connection)

AUDI A4 2012 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 2012 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-

AUDI A4 2012 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.

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 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 -	10-pin connector, red -T10u-

A1 -

AUDI A4 2012 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-

A2 -	1-pin connector, blue -T1n-

A3 -

Vacant

A5 -	for models with -J794- basic:

t	4-pin connector, violet -T4al-

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-

AUDI A4 2012 Multimedia​ system​ operating​ unit​ E380

Multimedia​ system​ operating​ unit​ -E380-

Location:

on centre console.

   

A -	Multimedia​ system​ operating​ unit​ -E380-

AUDI A4 2012 Climatronic control unit J255

Climatronic control unit -J255-

Location:

in middle part dash panel.

   

A -	Climatronic control unit -J255-

A2 -	20-pin connector -T20e-

AUDI A4 2012 Airbag​ control​ unit​ J234 Airbag​ control​ unit​ -J234- Location: Under centre console

A -	Airbag​ control​ unit​ -J234-

AUDI A4 2012 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)

AUDI A4 2012 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 2012 Data bus diagnostic interface J533 Data bus diagnostic interface -J533- Location: below the dash panel.

A -	Data bus diagnostic interface -J533-

A2 -	20-pin connector -T20d-

AUDI A4 2012 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-

AUDI A4 2012 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- 4 -  Reversing camera system control unit -J772- 5 -  Trailer detector control unit -J345- Connectors on trailer detector control unit -J345- 6 -  Park assist steering control unit -J791- Connectors on park assist steering control unit -J791- 7 -  Control​ unit​ for​ electromechanical​ parking​ brake -J540-

Unlock Lifetime Access for This Car.

Connectors on convenience system central control unit -J393-

2 -	32-pin connector, black (connector B) -T32c-

4 -	32-pin connector, blue (connector F) -T32e-

5 -	6-pin​ connector​ (connector​ G) -not assigned-

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:

Connectors on trailer detector control unit -J345-

A -	Trailer detector control unit -J345-

Connectors:

C -	12-pin connector, red -T12d-

Connectors on Parallel​ Parking​ Assistance​ Control​ Module -J791-

B -	12-pin connector, brown -T12e-

AUDI A4 2012 All-wheel drive control unit J492

All-wheel drive control unit -J492-

.

   

1 -	All-wheel drive control unit -J492-

Location for Avant (5-door) models:

on right wheel housing.

t	Figure shows Avant (5-door) model.

t	Figure for saloon (4-door) model .

   

1 -	All-wheel drive control unit -J492-

2 -	47-pin connector -T47b-

AUDI A4 2012 Voltage stabiliser J532 Voltage stabiliser -J532- Location: In spare wheel recess, on left next to battery.

1 -	Voltage stabiliser -J532-

AUDI A4 2012 Battery​ monitor​ control​ unit​ J367

Battery​ monitor​ control​ unit​ -J367-

Location:

at negative terminal of battery -A-.

   

3 -	2-pin connector -T2x-

AUDI A4 2012 Overview of earth points - saloon models (4-door)

Overview of earth points - saloon models (4-door)

Overview of Ground Connections - Avant (5-door)

   

685	Earth point 1, on front of right longitudinal member

q	Fitting location:

q	Overview of Avant models (5-door):

638	Earth point, right A-pillar

q	Fitting location:

q	Overview of Avant models (5-door):

688	Earth point 2, on centre tunnel

q	Fitting location:

q	Overview of Avant models (5-door):

687	Earth point 1, on centre tunnel

q	Fitting location:

q	Overview of Avant models (5-door):

730	Earth point 1, on right rear wheel housing

q	Fitting location:

q	Overview of Avant models (5-door):

62	Earth point, right C-pillar

q	Fitting location:

51	Earth point, on right in luggage compartment

q	Fitting location:

q	Overview of Avant models (5-door):

624	Earth point, starter battery

q	Fitting location:

q	Overview of Avant models (5-door):

61	Earth point, left C-pillar

q	Fitting location:

q	Overview of Avant models (5-door):

50	Earth point, on left in luggage compartment

q	Fitting location:

q	Overview of Avant models (5-door):

602	Earth point, in front left footwell

q	Fitting location:

q	Overview of Avant models (5-door):

639	Earth point, left A-pillar

q	Fitting location:

q	Overview of Avant models (5-door):

12	Earth point, on left in engine compartment

q	Fitting location:

q	Overview of Avant models (5-door):

615	Earth point, on left suspension strut

q	Fitting location:

q	Overview of Avant models (5-door):

671	Earth point 1, on front of left longitudinal member

q	Fitting location:

q	Overview of Avant models (5-door):

AUDI A4 2012 Overview of earth points - Avant models (5-door) Overview of earth points - Avant models (5-door)   Note Overview of earth points - saloon models (4-door)

685	Earth point 1, on front of right longitudinal member

q	Fitting location:

638	Earth point, right A-pillar

q	Fitting location:

688	Earth point 2, on centre tunnel

q	Fitting location:

687	Earth point 1, on centre tunnel

q	Fitting location:

730	Earth point 1, on right rear wheel housing

q	Fitting location:

654	Earth point, right D-pillar

q	Fitting location:

624	Earth point, starter battery

q	Fitting location:

61	Earth point, left C-pillar

q	Fitting location:

50	Earth point, on left in luggage compartment

q	Fitting location:

51	Earth point, on right in luggage compartment

q	Fitting location:

602	Earth point, in front left footwell

q	Fitting location:

639	Earth point, left A-pillar

q	Fitting location:

12	Earth point, on left in engine compartment

q	Fitting location:

615	Earth point, on left suspension strut

q	Fitting location:

671	Earth point 1, on front of left longitudinal member

q	Fitting location:

671 Earth point 1, on front of left longitudinal member Location: on longitudinal member, near front left wheel housing Torque: 9 Nm

Unlock Lifetime Access for This Car.

615 Earth point, on left suspension strut Location: on the front left suspension strut chamber Torque: 9 Nm   Unlock Lifetime Access for This Car.    12 Earth point, on left in engine compartment Location: Between suspension strut chamber and front left plenum chamber Torque: 9 Nm   Unlock Lifetime Access for This Car.    685 Earth point 1, on front of right longitudinal member Location: on front of right longitudinal member, behind wheel housing Torque: 20 Nm   Unlock Lifetime Access for This Car.    639 Earth point, left A-pillar Location: behind lower left A-pillar trim Torque: 9 Nm   Unlock Lifetime Access for This Car.    638 Earth point, right A-pillar Location: behind lower right A-pillar trim Torque: 9 Nm   Unlock Lifetime Access for This Car.    687 Earth point 1, on centre tunnel Location: On the left side of the centre tunnel Torque: 9 Nm   Unlock Lifetime Access for This Car.    688 Earth point 2, on centre tunnel Location: On the right side of the centre tunnel Torque: 9 Nm   Unlock Lifetime Access for This Car.    730 Earth point 1, on right rear wheel housing -arrow- Location: near front of rear right wheel housing, under sill panel trim Torque: 9 Nm   Unlock Lifetime Access for This Car.    61 Earth point, left C-pillar -arrow- Location: Under left C-pillar trim, near rear window Torque: 9 Nm   Unlock Lifetime Access for This Car.    62 Earth point, right C-pillar -upper arrow- Location: Under right C-pillar trim, near rear window Torque: 9 Nm   Unlock Lifetime Access for This Car.    50 Earth point, on left in luggage compartment -arrow- Location: Under side trim, left in luggage compartment, near wheel housing Torque: 9 Nm   Unlock Lifetime Access for This Car.    51 Earth point, on right in luggage compartment -arrow- Location: Under side trim, right in luggage compartment, near wheel housing Torque: 9 Nm   Unlock Lifetime Access for This Car.    61 Earth point, left C-pillar -arrow- Location: behind the trim of left side panel, behind C-pillar Torque: 9 Nm   Unlock Lifetime Access for This Car.    654 Earth point, right D-pillar Location: behind upper right D-pillar trim Torque: 9 Nm   Unlock Lifetime Access for This Car.    624 Earth point, starter battery Location: under the floor panel in the luggage compartment, right next to the starter battery Torque: 18 Nm   Unlock Lifetime Access for This Car.    602 Earth point, in front left footwell -arrow- Location: Under the carpet in the driver's footwell   Unlock Lifetime Access for This Car. Can't find your car? Check -> DiagnostData.com! Login Email or Login Password Remember me Sign up Get a new password Sign up Email Password Confirm password * A password will be generated automatically and sent to your Email Login Get a new password Get a new password Email Login Sign up