AUDI A3 CABRIOLET 2013 – Data bus network . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A3 CABRIOLET 2013 - Connection 1 (powertrain CAN bus - high) - in main wiring harness - Connection 1 (powertrain CAN bus - low) - in main wiring harness

J500	Power steering control unit
J623	Engine control unit
J743	Mechatronic unit for dual clutch gearbox
T3w	3-pin connector
T5	5-pin connector
T6	6-pin connector
T20e	20-pin connector
T25	25-pin connector
B383	Connection 1 (powertrain CAN bus, high), in main wiring harness
B390	Connection 1 (powertrain CAN bus, low), in main wiring harness
*	From May 2008
*2	see applicable current flow diagram for engine
*3	Only models with dual clutch gearbox 0AM
*4	Only models with dual clutch gearbox 02E
*5	Up to April 2008

Wiring Diagram AUDI A3 CABRIOLET 2013 - Connection (high bus) - in interior wiring harness - Connection (low bus) - in interior wiring harness - Connection 1 (powertrain CAN bus - high) - in main wiring harness - Connection 1 (powertrain CAN bus - low) - in main wiring harness

J431	Headlight range control unit
J533	Data bus diagnostic interface
J667	Output module for left headlight
J668	Output module for right headlight
T8ad	8-pin connector
T14c	14-pin connector
T14d	14-pin connector
T20d	20-pin connector
T26a	26-pin connector
T26b	26-pin connector
Y7	Automatic anti-dazzle interior mirror
B229	Connection (high bus), in interior wiring harness
B230	Connection (low bus), in interior wiring harness
B383	Connection 1 (powertrain CAN bus, high), in main wiring harness
B390	Connection 1 (powertrain CAN bus, low), in main wiring harness
*	Only models with main beam assist
*2	Only models with dynamic cornering light

Wiring Diagram AUDI A3 CABRIOLET 2013 - Connection 1 (powertrain CAN bus - high) - in main wiring harness - Connection 2 (powertrain CAN bus - high) - in main wiring harness - Connection 1 (powertrain CAN bus - low) - in main wiring harness - Connection 2 (powertrain CAN bus - low) - in main wiring harness - Connection 3 (LIN bus) in main wiring harness

C	Alternator
J104	ABS control unit
J367	Battery monitor control unit
J527	Steering column electronics control unit
J533	Data bus diagnostic interface
T20b	20-pin connector
T20d	20-pin connector
B383	Connection 1 (powertrain CAN bus, high), in main wiring harness
B384	Connection 2 (powertrain CAN bus, high), in main wiring harness
B390	Connection 1 (powertrain CAN bus, low), in main wiring harness
B391	Connection 2 (powertrain CAN bus, low), in main wiring harness
B698	Connection 3 (LIN bus) in main wiring harness
*	Only models with ABS and TCS
*2	Only models with ABS/ ABS and ESP
*3	see applicable current flow diagram
*4	Only right-hand drive models
*5	Only models with energy recovery
*6	Only models with start/stop system
*7	Only models with battery in engine compartment

Wiring Diagram AUDI A3 CABRIOLET 2013 - Connection 2 (powertrain CAN bus - high) - in main wiring harness - Connection 2 (powertrain CAN bus - low) - in main wiring harness

J104	ABS control unit
J234	Airbag control unit
J446	Parking aid control unit
J527	Steering column electronics control unit
J533	Data bus diagnostic interface
J587	Selector lever sensors control unit
J791	Park assist steering control unit
T10k	10-pin connector
T16f	16-pin connector
T75	75-pin connector
B384	Connection 2 (powertrain CAN bus, high), in main wiring harness
B391	Connection 2 (powertrain CAN bus, low), in main wiring harness
*	Only models with ABS and TCS
*2	Only models with ABS/ ABS and ESP
*3	see applicable current flow diagram
*4	Only left-hand drive models

Wiring Diagram AUDI A3 CABRIOLET 2013 - Connection 1 (convenience CAN bus - high) - in main wiring harness - Connection 1 (convenience CAN bus - low) - in main wiring harness

J255	Climatronic control unit
J256	Convertible roof actuation control unit
J301	Air conditioning system control unit
J345	Trailer detector control unit
J527	Steering column electronics control unit
J533	Data bus diagnostic interface
J843	Interface control unit for vehicle location system
T12h	12-pin connector
T12u	12-pin connector
T16e	16-pin connector
T20b	20-pin connector
T20c	20-pin connector
T20p	20-pin connector
B397	Connection 1 (convenience CAN bus, high), in main wiring harness
B406	Connection 1 (convenience CAN bus, low), in main wiring harness

Wiring Diagram AUDI A3 CABRIOLET 2013 - Connection 1 (convenience CAN bus - high) - in main wiring harness - Connection 1 (convenience CAN bus - low) - in main wiring harness

J386	Driver door control unit
J387	Front passenger door control unit
J533	Data bus diagnostic interface
T18c	18-pin connector
T18d	18-pin connector
T20	20-pin connector, on lower section of left A-pillar
T20a	20-pin connector, on lower section of right A-pillar
T20f	20-pin connector
T20g	20-pin connector
V26	Rear left window regulator motor
V27	Rear right window regulator motor
B397	Connection 1 (convenience CAN bus, high), in main wiring harness
B406	Connection 1 (convenience CAN bus, low), in main wiring harness
*	Only left-hand drive models
*2	From May 2008
*3	Up to April 2008

Wiring Diagram AUDI A3 CABRIOLET 2013 - Connection 1 (convenience CAN bus - high) - in main wiring harness - Connection 1 (convenience CAN bus - low) - in main wiring harness

J386	Driver door control unit
J387	Front passenger door control unit
J533	Data bus diagnostic interface
T18c	18-pin connector
T18d	18-pin connector
T20	20-pin connector, on lower section of left A-pillar
T20a	20-pin connector, on lower section of right A-pillar
T20f	20-pin connector
T20g	20-pin connector
V26	Rear left window regulator motor
V27	Rear right window regulator motor
B397	Connection 1 (convenience CAN bus, high), in main wiring harness
B406	Connection 1 (convenience CAN bus, low), in main wiring harness
*	Only right-hand drive models
*2	From May 2008
*3	Up to April 2008

Wiring Diagram AUDI A3 CABRIOLET 2013 - Connection 1 (convenience CAN bus - high) - in main wiring harness - Connection 1 (convenience CAN bus - low) - in main wiring harness - Connection 1 (LIN bus) in main wiring harness - Connection 2 (LIN bus) in main wiring harness

G273	Interior monitoring sensor
G397	Rain and light sensor
H12	Alarm horn
J393	Convenience system central control unit
J400	Wiper motor control unit
J519	Onboard supply control unit
J533	Data bus diagnostic interface
T6g	6-pin connector
T8h	8-pin connector
T12e	12-pin connector
T18	18-pin connector
T20d	20-pin connector
T52b	52-pin connector
T52c	52-pin connector
B397	Connection 1 (convenience CAN bus, high), in main wiring harness
B406	Connection 1 (convenience CAN bus, low), in main wiring harness
B528	Connection 1 (LIN bus) in main wiring harness
B549	Connection 2 (LIN bus) in main wiring harness
*	Up to April 2009
*2	Only models with automatic driving lights control
*3	For models with anti-theft alarm system
*4	From May 2009

Wiring Diagram AUDI A3 CABRIOLET 2013 - Connection 1 (infotainment CAN bus - high) - in main wiring harness - Connection 1 (infotainment CAN bus - low) - in main wiring harness

J364	Auxiliary heater control unit
J402	Navigation operating electronics control unit
J503	Control unit with display for radio and navigation
J533	Data bus diagnostic interface
R	Radio
R12	Amplifier
R199	Connection for external audio sources
T8q	8-pin connector
T12y	12-pin connector
T16g	16-pin connector
B415	Connection 1 (infotainment CAN bus, high), in main wiring harness
B421	Connection 1 (infotainment CAN bus, low), in main wiring harness
*	Only models with radio
*2	see applicable current flow diagram
*3	Only models with connection for external audio sources - Audi music interface
*4	Only models with radio navigation system

Wiring Diagram AUDI A3 CABRIOLET 2013 - Connection 1 (infotainment CAN bus - high) - in main wiring harness - Connection 1 (infotainment CAN bus - low) - in main wiring harness - Connection 1 (dash panel insert CAN bus high) in main wiring harness - Connection 1 (dash panel insert CAN bus low) in main wiring harness - Connection 1 (CAN bus diagnosis - high) - in main wiring harness - Connection 1 (CAN bus diagnosis - low) - in main wiring harness

J285	Control unit in dash panel insert
J533	Data bus diagnostic interface
R36	Telephone transmitter and receiver unit
T16	16-pin connector
T20d	20-pin connector
T32	32-pin connector
T54	54-pin connector
B415	Connection 1 (infotainment CAN bus, high), in main wiring harness
B421	Connection 1 (infotainment CAN bus, low), in main wiring harness
B708	Connection 1 (dash panel insert CAN bus high) in main wiring harness
B709	Connection 1 (dash panel insert CAN bus low) in main wiring harness
B713	Connection 1 (CAN bus diagnosis, high), in main wiring harness
B714	Connection 1 (CAN bus diagnosis, low), in main wiring harness
*	Gradually discontinued
*2	Up to April 2009
*3	From May 2009

AUDI A3 CABRIOLET 2013 Overview of control units

Overview of control units    

1 -

q	Location for dual clutch gearbox (0AM)

q	Connector assignment for dual clutch gearbox (02E)

q	Connector assignment for dual clutch gearbox (0AM)

q	Connector assignment

4 -

5 -

Garage door operation control unit -J530-

q

Location

q	Connector assignment

q	Connector assignment, 121 pin

q	Connector assignment, 154 pin

8 -

9 -

Auxiliary heater control unit -J364-

q	under the longitudinal member on front right

q	Connector assignment

q	Connector assignment, 47 pin

q	Connector assignment, 26 pin

Battery monitor control unit -J367-

Location: on battery -2- in left of engine compartment

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AUDI A3 CABRIOLET 2013 Wiper motor control unit J400 Wiper motor control unit -J400- Location: in plenum chamber atwindscreen wiper motor -V-

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AUDI A3 CABRIOLET 2013 Mechatronic unit for dual clutch gearbox J743 Mechatronic unit for dual clutch gearbox -J743- Location: on gearbox

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Connector assignment.

A -	Mechatronic unit for dual clutch gearbox -J743-

Pin connector:

B -	20-pin connector -T20e-

AUDI A3 CABRIOLET 2013 Mechatronic unit for dual clutch gearbox J743 Mechatronic unit for dual clutch gearbox -J743-

Location: on gearbox

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Connector assignment.

-	Mechatronic unit for dual clutch gearbox -J743-

Pin connector:

A -	25-pin connector -T25-

AUDI A3 CABRIOLET 2013 Power steering control unit J500 Power steering control unit -J500-

Location: on steering box -arrow-

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Connector assignment.

A -	Power steering control unit -J500-

Pin connector:

B -	5-pin connector -T5-

C -	5-pin connector -T5a-

D -	2-pin connector -T2a-

AUDI A3 CABRIOLET 2013 Left gas discharge light control unit J343 / Right gas discharge light control unit J344 Location: on headlight housing

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AUDI A3 CABRIOLET 2013 Garage door operation control unit J530 Garage door operation control unit -J530- Location: 1 -  under front bumper

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Connector assignment.

-	Garage door operation control unit -J530-

Pin connector:

A -	4-pin connector -T4ak-

AUDI A3 CABRIOLET 2013 Radiator fan control unit J293 Location: on motor forradiator fan -V7-

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AUDI A3 CABRIOLET 2013 Engine control unit J623 Engine control unit -J623- Location: central in plenum chamber -arrow-

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Connector assignment, 121 pin:

A -	Engine control unit -J623-

Pin connector:

B -	81-pin connector -T81-

C -	40-pin connector -T40-

-T121- is made up of items B and C.

Connector assignment, 154 pin:

A -	Engine control unit -J623-

Pin connector:

B -	94-pin connector -T94-

C -	60-pin connector -T60-

AUDI A3 CABRIOLET 2013 ABS control unit J104 Location: On bulkhead, in engine compartment, right -arrow-

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Connector assignment:

A -	ABS control unit (MK60) -J104-

Pin connector:

B -	47-pin connector

Connector assignment:

A -	ABS control unit (MK70) -J104-

Pin connector:

B -	26-pin connector

AUDI A3 CABRIOLET 2013 Auxiliary heater control unit J364

Auxiliary heater control unit -J364-

Connector assignment.

1 -	Auxiliary heater control unit -J364-

Pin connector:

2 -	2-pin connector -T2v-

3 -	2-pin connector -T2x-

5 -	4-pin connector -T4u-

6 -	8-pin connector -T8r-

7 -	3-pin connector -T3j-

8 -	8-pin connector -T8q-

AUDI A3 CABRIOLET 2013 Overview of control units

Overview of control units

q	Connector assignment

q	Connector assignment

q	Connector assignment

q	Connector assignment

q	Connector assignment

q	Connector assignment

q	Connector assignment

q	Connector assignment

q	Location from May 2009

q	Connector assignment from March 2008

q	Connector assignment from May 2009

-J162-

q

Location

9 -

q	Connector assignment

q	Connector assignment

11 -

q	Connector assignment

q	Connector assignment

q	Connector assignment

Control unit with display for radio and navigation system -J503-

q

Location

15 -

Headlight range control, control unit -J431-

Location: Below the dash panel on right, on left centre console -arrow-

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Connector assignment.

A -	Headlight range control, control unit -J431-

Connector:

B -	26-pin connector -T26a-

AUDI A3 CABRIOLET 2013 Front passenger seat heating control unit J727 Front passenger seat heating control unit -J727-

Location: Under front passenger seat

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Connector assignment.

-	Front passenger seat heating control unit -J727-

Connector:

A -	6-pin connector -T6p-

AUDI A3 CABRIOLET 2013 Control unit in dash panel insert J285 Control unit in dash panel insert -J285-

Location: in dash panel

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Connector assignment.

-	Control unit in dash panel insert -J285-

Connector:

A -	32-pin connector -T32-

AUDI A3 CABRIOLET 2013 Fuel pump control unit J538 Fuel pump control unit -J538-

Location: Under rear seat bench, on fuel pump -arrow-

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Connector assignment.

A -	Fuel pump control unit -J538-

Connector:

B -	10-pin connector -T10b-

AUDI A3 CABRIOLET 2013 Driver seat heating control unit J726 Driver seat heating control unit -J726-

Location: under driver seat

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Connector assignment.

-	Driver seat heating control unit -J726-

Connector:

A -	6-pin connector -T6o-

AUDI A3 CABRIOLET 2013 Steering column electronics control unit J527 Steering column electronics control unit -J527-

Location: on steering column -arrow-

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Connector assignment.

A -	Steering column electronics control unit -J527-

B -	4-pin connector(Airbag mounting)

C -	10-pin connector(Cruise control system and turn signal support)

D -	20-pin connector -T20b-

E -	4-pin connector -T4n-

F -	12-pin connector(Ignition/starter switch and ignition key withdrawal lock support)

G -	8-pin connector(Wiper support, interval potentiometer and multifunction system)

H -	10-pin connector(Steering angle sensor support)

I -	10-pin connector(Coil connector support)

AUDI A3 CABRIOLET 2013 Driver door control unit J386 Driver door control unit -J386-

Location: In driver door -arrow-

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Connector assignment.

A -	Driver door control unit -J386-

Connector:

B -	32-pin connector -T32a-

C -	16-pin connector -T16b-

D -	20-pin connector -T20f-

AUDI A3 CABRIOLET 2013 Onboard supply control unit J519 Onboard supply control unit -J519-

Location: On left under dash panel, under relay carrier -arrow-

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Connector assignment.

-	Onboard supply control unit -J519-

Connector:

A -	11-pin connector -T11b-

B -	12-pin connector -T12c-

C -	12-pin connector -T12d-

D -	11-pin connector -T11c-

E -	16-pin connector -T16a-

F -	8-pin connector -T8h-

G -	12-pin connector -T12e-

H -	12-pin connector

I -	2-pin connector -T2b-

J -	6-pin connector -T6h-

K -	10-pin connector -T10d-

L -	2-pin connector -T2t-

AUDI A3 CABRIOLET 2013 Onboard supply control unit J519 Onboard supply control unit -J519-

Location: Left under dash panel -arrow-

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Connector assignment.

-	Onboard supply control unit -J519-

Connector:

A -	52-pin connector -T52a-

B -	52-pin connector -T52b-

C -	52-pin connector -T52c-

AUDI A3 CABRIOLET 2013 Heater control unit J65 / Heater control unit J162 Heater control unit -J65-/Heater control unit -J162- Location: in centre console

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AUDI A3 CABRIOLET 2013 Climatronic control unit J255 Climatronic control unit -J255- Location: in centre console

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Connector assignment.

-	Climatronic control unit -J255-

Connector:

A -	12-pin connector -T12f-

B -	20-pin connector -T20j-

C -	16-pin connector -T16e-

D -	16-pin connector -T16d-

AUDI A3 CABRIOLET 2013 Data bus diagnostic interface J533 Data bus diagnostic interface -J533-

Location: in left footwell -arrow-   Note Location ofData bus diagnostic interface -J533-is the same for right and left-hand drive models.

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Connector assignment.

A -	Data bus diagnostic interface -J533-

Connector:

B -	20-pin connector -T20d-

AUDI A3 CABRIOLET 2013 Fresh air blower control unit J126 Fresh air blower control unit -J126- Location: Under glove compartment, onfresh air blower -V2-

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AUDI A3 CABRIOLET 2013 Front passenger door control unit J387 Front passenger door control unit -J387- Location: in front passenger door -arrow-

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Connector assignment.

A -	Front passenger door control unit -J387-

Connector:

B -	32-pin connector -T32b-

C -	16-pin connector -T16c-

D -	20-pin connector -T20g-

AUDI A3 CABRIOLET 2013 Airbag control unit J234 Airbag control unit -J234-

Location: Under centre console -arrow-

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Connector assignment.

A -	Airbag control unit -J234-

Connector:

B -	75-pin connector -T75-

AUDI A3 CABRIOLET 2013 Connection for external audio source R199 Connection for external audio source -R199- Fitting location In glove compartment

A -	Connection for external audio source -R199-

B -	12-pin connector -T12y-

AUDI A3 CABRIOLET 2013 Radio R / Control unit with display for radio and navigation system J503 (RNS-low) Radio -R-/Control unit with display for radio and navigation system -J503- (RNS-low) Location: In centre console -arrow-

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AUDI A3 CABRIOLET 2013 Navigation operating electronics control unit J402 (RNS-E) Navigation operating electronics control unit -J402- (RNS-E) Location: in centre console

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AUDI A3 CABRIOLET 2013 CD changer R41 CD changer -R41- Location: In glove box -arrow-

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AUDI A3 CABRIOLET 2013 Voltage stabiliser J532 Voltage stabiliser -J532- Location: Under driver seat -arrow-

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Connector assignment.  -  Voltage stabiliser -J532- Connector: A -  12-pin connector -T12x-

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AUDI A3 CABRIOLET 2013 Overview of control units

Overview of control units    

1 -

q	Connector assigment -J345-

q	Connector assigment -J393-

2 -	Convertible roof actuation control unit -J256-

q

Location

q	Connector assigment

Control units on right in luggage compartment    

Location: A -  Parking aid control unit -J446- B -  Trailer detector control unit -J345- C -  Convenience system central control unit -J393-

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Connector assignment.

A -	Trailer detector control unit -J345-

Audi A3 Cabriolet Fitting Locations No.  806 / 4 Connector assignment. https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car A -  Convenience system central control unit -J393- Audi A3 Cabriolet Fitting Locations No.  806 / 5 Location: behind side trim on left -arrow-   https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car Location: on rear axle differential, front left

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Connector assignment.

-	All-wheel drive control unit - J492 -

Connector:

A -	2-pin connector -T2ax-

B -	8-pin connector, black -T8y-