VW PASSAT CC 2009 – Trailer coupling . Wiring diagrams, Pin Connector, Location

Wiring Diagram VW PASSAT CC 2009 - Trailer detector control unit - fuses - onboard supply control unit - terminal 15 voltage supply relay

A	Battery
J329	Terminal 15 voltage supply relay
J345	Trailer detector control unit
J519	Onboard supply control unit
SA4	Fuse 4 on fuse holder A
SB3	Fuse 3 on fuse holder B
SB4	Fuse 4 on fuse holder B
SB30	Fuse 30 on fuse holder B
SB49	Fuse 49 on fuse holder B
SC4	Fuse 4 on fuse holder C
SC23	Fuse 23 on fuse holder C
SC25	Fuse 25 on fuse holder C
SF1	Fuse 1 on fuse holder F
T2cq	2-pin connector
T12g	12-pin connector, red
T16g	16-pin connector, black
T40	40-pin connector
12	Earth point, on left in engine compartment
50	Earth point, on left in luggage compartment
507	Threaded connection (30), on battery fuse holder
B277	Connection 1 (15a), in main wiring harness
B330	Connection 16 (30a), in main wiring harness
B335	Connection 1 (54), in main wiring harness
B571	Connection 38, in main wiring harness
*	Fuses in E-box low
**	Fuses in E-box high
#	Applicable to October 2009

Wiring Diagram VW PASSAT CC 2009 - Trailer detector control unit - data bus diagnostic interface - trailer socket - onboard supply control unit

J345	Trailer detector control unit
J519	Onboard supply control unit
J533	Data bus diagnosis interface
T12g	12-pin connector, red
T13	13-pin connector
T16b	16-pin connector, black
T20e	20-pin connector
U10	Trailer socket
50	Earth point, on left in luggage compartment
B397	Connection 1 (convenience CAN bus, high), in main wiring harness
B406	Connection 1 (convenience CAN bus, low), in main wiring harness
*	Applicable from November 2009

VW PASSAT CC 2009 Overview of control units

Overview of control units    

3 -	Not assigned

q	Connector assignment

q

Connector

Reversing camera system control unit -J772- Fitting location: behind right luggage compartment side trim panel -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

VW PASSAT CC 2009 TV tuner R78 TV tuner -R78- Fitting location: behind right luggage compartment side trim panel -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

Trailer detector control unit -J345- Fitting location: In rear left side panel -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

Connector assignment:

A -	Trailer detector control unit -J345-

Multimedia system control unit -J650-

Fitting location:

In luggage compartment behind left side panel trim -arrow-

 

VW PASSAT CC 2009 Overview of control units

Overview of control units    

q	100-pin connector assignment

q	100-pin connector

q	Connector assignment

q

Connector

Climatronic control unit -J255-

q	Air conditioning system control unit -J301-

q	Connector assignment

q

Connector

q	Climatronic control unit -J255-

q	Connector assignment

q

Connector

q	Fitting location

q	Fitting location of heated rear seats control unit -J786-

q	Fitting location of control unit for navigation system -J856-

q	Connector assignment

q

Connector

q	Connector assignment

q

Connector

q	Connector assignment

q

Connector

q	Connector assignment

q

Connector

q	Connector assignment

q

Connector

q	Connector assignment

q

Connector

q	Connector assignment

q

Connector

q	Connector assignment

q

Connector

q	Connector assignment

q

Connector

q	Connector assignment from November 2010

q	Fitting location up to October 2010

q	Connector assignment up to October 2010

q	B- Connector for turn signal and cruise control system

q	C- 20-pin connector -T20d-

q	D- 4-pin connector -T4-

q	E- Connector for windscreen wipers and multifunction display

q	F- Connector for steering angle sender

q	G- Connector for airbag/multifunction steering wheel return ring

control unit in dash panel insert -J285-

q	32-pin connector -T32c-

q	Fitting location up to October 2010

q	Connector assignment up to October 2010

q	A- 11-pin connector -T11-

q	B- 12-pin connector -T12i-

q	C- 12-pin connector -T12k-

q	D- 11-pin connector -T11a-

q	E- 16-pin connector -T16g-

q	F- 8-pin connector -T8t-

q	G- 12-pin connector -T12m- -

q	H- 12-pin connector -T12-

q	I- 2-pin connector -T2cp-

q	J- 6-pin connector -T6ap-

q	K- 10-pin connector -T10s-

q	L- 2-pin connector -T2cq-

q	Connector assignment

q

Connector

Fitting location: Under centre console, front -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

100-pin connector assignment:

B -	100-pin connector -T100-

B -	100-pin connector -T100a-

Convenience system central control unit -J393- Fitting location: Below the dash panel, behind the glove compartment -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

Connector assignment:

A -	Convenience system central control unit -J393-

Connector:

B -	6-pin connector -T6an-

C -	18-pin connector -T18a-

D -	8-pin connector -T8r-

E -	6-pin connector -T6ao-

F -	18-pin connector -T18b-

G -	18-pin connector -T18c-

18-pin connector -T18c- Discontinued on models with no entry and start authorisation

Air conditioning system control unit -J301-

Connector assignment:

A -	Air conditioning system control unit -J301-

VW PASSAT CC 2009 Climatronic control unit J255

Climatronic control unit -J255-

Connector assignment:

A -	Climatronic control unit -J255-

VW PASSAT CC 2009

Control unit for cornering light and headlight range control -J745- / headlight range control unit -J431-

Fitting location:

Behind the glove compartment, left -Arrow A- .

 

VW PASSAT CC 2009 Heated rear seats control unit J786 Heated rear seats control unit -J786- Fitting location: Under seat on front right -arrow- VW PASSAT CC 2009 Control unit for navigation system J856 Control unit for navigation system -J856- Fitting location: under seat on front right

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

1 -	Control unit for navigation system -J856-

A -	10-pin connector -T10y-

B -	5-pin connector -T5-

q	Control unit 1 for information electronics -J794-

C -	5-pin connector -T5-

q	Multimedia system operating unit -E380-

D -	2-pin connector

q	Radio aerial -R248-

E -	20-pin connector -T20p-

F -	2-pin connector

q	Digital radio aerial -R183-

VW PASSAT CC 2009 Seat occupied recognition control unit J706 Seat occupied recognition control unit -J706- Fitting location: on front passenger side seat frame -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

Connector assignment:

A -	Seat occupied recognition control unit -J706-

Aerial selection control unit -J515-

Fitting location:

under seat on front right -Arrow B- .

The aerial selection control unit -J515- is only installed for Japanese markets.

 

VW PASSAT CC 2009 Front passenger door control unit J387 Front passenger door control unit -J387- Fitting location: on inside of front passenger door -Arrow- . VW PASSAT CC 2009 Driver door control unit J386 Driver door control unit -J386- Fitting location: on inside of driver door -Arrow-   Note: The illustration shows the driver side. The front passenger side is similar.

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

Connector assignment:

A -	Front passenger door control unit -J387- , driver door control unit -J386-

VW PASSAT CC 2009

Mobile telephone operating electronics control unit -J412- / telephone controls control unit -J738-

Fitting location:

under seat on front right -Arrow A-

 

Connector assignment:

A -	Mobile telephone operating electronics control unit -J412- / telephone controls control unit -J738-

Control unit for electromechanical parking brake -J540-

Fitting location:

on rear of centre tunnel -Arrow- .

 

Connector assignment:

A -	Control unit for electromechanical parking brake -J540-

Rear right door control unit -J389-

Fitting location:

On inside of rear door on front passenger side -arrow-

Rear left door control unit -J388-

Fitting location:

On inside of rear door on driver's side -arrow-

The illustration shows the driver side. The front passenger side is similar.

 

Connector assignment:

A -	Rear right door control unit -J389- , rear left door control unit -J388-

Fuel pump control unit -J538-

Fitting location:

under rear right seat, on fuel delivery unit -Arrow- .

 

Connector assignment:

A -	Fuel pump control unit -J538-

Seat and steering column adjustment control unit with memory -J136-

Fitting location:

under front seat driver's side -arrow-

 

Connector assignment:

A -	Seat and steering column adjustment control unit with memory -J136-

Connector:

B -	26-pin connector -T26b-

C -	6-pin connector -T6bj-

D -	6-pin connector -T6bq-

E -	6-pin connector -T6bi-

F -	6-pin connector -T6bh-

G -	6-pin connector -T6bp-

H -	4-pin connector -T4br-

I -	2-pin connector -T2- , Not assigned

J -	2-pin connector -T2- , Not assigned

K -	6-pin connector -T6- , Not assigned

L -	6-pin connector -T6- , Not assigned

M -	6-pin connector -T6- , Not assigned

N -	6-pin connector -T6- , Not assigned

O -	16-pin connector -T16- , Not assigned

VW PASSAT CC 2009 Special purpose vehicle control unit J608 Special purpose vehicle control unit -J608- Fitting location: under front seat driver's side -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

VW PASSAT CC 2009 Heated front seats control unit J774 Heated front seats control unit -J774- Fitting location: On driver's seat frame -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

VW PASSAT CC 2009 Steering column electronics control unit J527 Steering column electronics control unit -J527- Fitting location: To October 2010 under steering column, near steering column switch -arrow- Connector assignment: To October 2010

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 -	Steering column electronics control unit -J527-

C -	20-pin connector -T20d-

1 -	Ignition​ key​ withdrawal​ lock

2 -	Immobilizer reader unit

3 -	Convenience bus CAN, low

4 -	Convenience​ bus​ CAN​ high

5 -	Powertrain CAN screening

6 -	Powertrain CAN, low

7 -	Powertrain CAN, high

8 -

Earth

9 -	Voltage supply for steering column electronic systems control unit

10 -	Terminal 50

11 -	Terminal P

12 -	Terminal S

13 -	Terminal 15

14 -	Not assigned

15 -	Not assigned

16 -	Cruise control system, out

17 -

Earth

18 -	Voltage​ supply​ for​ steering​ column​ electronic​ systems​ control​ unit​ (terminal 30)

19 -	Not assigned

20 -	Not assigned

E -	Connector for wiper and multifunction display:

1 -	Earth for intermittent​ wiper​ switch

2 -	Signal wiper

3 -	Signal wash/wipe

4 -	Potentiometer for interval stages

5 -	Signal for multifunction display

6 -	Earth for multifunction display and interval

G -	Connector for airbag return spring/multifunction steering wheel:

1 -	Not assigned

2 -	Not assigned

3 -	Airbag 1 (+)

4 -	Airbag 1 (-)

5 -	Airbag 2 (+)

6 -	Airbag 2 (-)

7 -	Earth​ for​ coil​ connector,​ multifunction​ steering​ wheel​ and​ horn​

8 -	Horn or CCS off (with multifunction steering wheel)

9 -

LIN bus

10 -	Voltage supply for multifunction steering wheel (terminal 15)

Steering column electronics control unit -J527- Fitting location:

from November 2010 -Arrow- Connector assignment: From November 2010 Connector -A-16-pin connector -T16o- Connector -B-4-pin connector -T4ae-

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

VW PASSAT CC 2009

Dash panel insert -K- / control unit in dash panel insert -J285-

32-pin connector -T32c-

1 -	Fuel gauge sender (full)

2 -	Fuel gauge sender (empty)

3 -	Fuel level sensor (full), only for all-wheel drive

4 -	Fuel level sensor (empty), only for all-wheel drive

5 -	Not assigned

6 -	Not assigned

7 -	Not assigned

8 -	Not assigned

9 -	Speed​ signal,​ sliding sunroof control unit output , control​ unit​ with​ display​ for​ radio​ and​ navigation​ system

10 -	Not assigned

11 -	Oil level and oil temperature sender

12 -	Not assigned

13 -	Not assigned

14 -	Not assigned

15 -	Front left brake pad wear sender

16 -	Terminal 31

17 -	Washer fluid level warning lamp

18 -	Coolant temperature and coolant shortage warning lamp

19 -	Ambient temperature sensor

20 -	Terminal 31, sensor earth

21 -	Not assigned

22 -	Not assigned

23 -	Not assigned

24 -	Not assigned

25 -	Electric park/handbrake warning lamp

26 -	Brake fluid level warning lamp

27 -	Oil pressure warning lamp

28 -	Diagnostic interface for dash panel insert CAN data bus, high

29 -	Diagnostic interface for dash panel insert CAN data bus, low

30 -	Not assigned

31 -	Voltage supply, terminal 15

32 -	Voltage supply, terminal 30

VW PASSAT CC 2009 Electronic steering column lock control unit J764 Electronic steering column lock control unit -J764- Fitting location: On steering column -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

VW PASSAT CC 2009 Onboard supply control unit J519 Onboard supply control unit -J519- Fitting location: under dash panel on driver's side, below relay carrier. Connector assignment: To October 2010

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

B -	12-pin connector -T12i-

1 -	Right reversing light bulb

2 -	Heated windscreen relay

3 -	Not assigned

4 -	Rear left fog light bulb

5 -	Right brake and tail light bulb

6 -	Not assigned

7 -	Front left​ entry​ light,​ front right​ entry​ light​

8 -	Not assigned

9 -	Right​ tail​ light​ bulb​ (side light)

10 -	Rear right turn signal bulb

11 -	Front interior light

12 -	Terminal 58d

D -	11-pin connector -T11a-

1 -	Terminal 30

2 -	Left fog light bulb

3 -	Left main beam bulb

4 -	Left headlight dipped beam bulb

5 -

Earth

6 -	Left​ gas​ discharge​ (xenon)​ bulb

7 -	Terminal 15 voltage supply relay

8 -	Headlight washer system relay

9 -	Not assigned

10 -	Right side light bulb

11 -	Front left turn signal bulb

Connector assignment:

E -	16-pin connector -T16g-

1 -	Lighting switch terminal 58

2 -	Brake light switch

3 -	Not assigned

4 -	Not assigned

5 -	Not assigned

6 -	Fog light switch

7 -	Earth (for manual gearbox only), mechatronics for dual clutch gearbox, multifunction switch (for automatic gearbox only)

8 -	Lighting switch terminal 56

9 -	Not assigned

10 -	Not assigned

11 -	Not assigned

12 -	Not assigned

13 -	Light switch (rear fog light)

14 -	Light switch (assistance driving light)

15 -	Not assigned

16 -	Light switch (daytime running lights)

F -	8-pin connector -T8t-

1 -	Terminal 50 voltage supply relay

2 -	Terminal 15 voltage supply relay

3 -	Windscreen wiper motor, rain and light sensor (LIN bus)

4 -	Alternator

5 -	Bonnet contact switch

6 -	Reversing light switch

7 -	Terminal 30

8 -	Terminal 31

G -	12-pin connector -T12-

t	Not assigned

I -

J -

6-pin connector -T6ap-

1 -	Fuse, windscreen and rear window washer pump (input)

2 -	Windscreen wiper motor windscreen and rear window washer pump (rear)

3 -	Fuse, horn

4 -	Windscreen wiper motor, windscreen and rear window washer pump (front)

5 -

Earth

6 -	Treble tone horn, bass tone horn

K -	2-pin connector -T2cq-

1 -	Fuse, terminal 15 interior (input)

2 -	Terminal 15 interior (output)

Connector assignment:

From November 2010 Fitting location: Under dash panel on driver's side, below relay carrier. Connector assignment: A -  52-pin connector -T52c- , brown B -  52-pin connector -T52b- , white C -  52-pin connector -T52a- , black

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

Driving school mode relay -J746- Fitting location: in driver footwell, behind relay carrier -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

VW PASSAT CC 2009 Park assist steering control unit -J791- / parking aid control unit -J446- Fitting location: Under dash panel on left, behind relay carrier above onboard supply control unit -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

VW PASSAT CC 2009 Data bus diagnostic interface J533 Data bus diagnostic interface -J533- Fitting location: Left-hand drive models: In driver's footwell near pedal cluster -Arrow- Right-hand drive models: In centre console under radio unit/navigation system

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

Connector assignment:

A -	Data bus diagnostic interface -J533-

Control unit with display for radio and navigation -J503-

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

A -

DAB input

q	Only for Europe

A -	SDRS input

q	Only for American markets

A -

GPS input

q	Only for Japan

B -	FM/AM input

C -

FM input

D -

GPS input

E -	26-pin connector -T26g-

F -	Multi-pin connector

G -	16-pin connector -T16c-

H -	12-pin connector -T12j-

I -	12-pin connector -T12l-

Connector assignment

-T26g- (E)	Designation		-T16c- (G)	Designation
1	Not assigned		1	Amplifier -R12- (sound system) rear right bass loudspeaker -R17- +
2	Not assigned		2	Amplifier -R12- (sound system) front right bass loudspeaker -R23-
3	Not assigned		3	Amplifier -R12- (sound system) front left bass loudspeaker -R21-
4	Not assigned		4	Amplifier -R12- (sound system) rear left bass loudspeaker -R15-
5	Not assigned		5	Amplifier -R12- (sound system) rear right bass loudspeaker -R17-
6	Telephone bracket -R126-		6	Amplifier -R12- (sound system) front right bass loudspeaker -R23-
7	Telephone bracket -R126-		7	Amplifier -R12- (sound system) front left bass loudspeaker -R21-
8	Telephone bracket -R126-		8	Amplifier -R12- (sound system) rear left bass loudspeaker -R15-
9	Not assigned		9	Data bus diagnostic interface -J533- (CAN bus, high)
10	TV tuner -R78-		10	Data bus diagnostic interface -J533- (CAN bus, low)
11	TV tuner -R78-		11	Not assigned
12	TV tuner -R78-		12	Terminal 31
13	TV tuner -R78-		13	Not assigned
14	Not assigned		14	Not assigned
15	Not assigned		15	Terminal 30
16	Not assigned		16	Terminal 30
17	Not assigned
18	Not assigned
19	Not assigned
20	Telephone bracket -R126-
21	Not assigned
22	TV tuner -R78-
23	TV tuner -R78-
24	TV tuner -R78-
25	TV tuner -R78-
26	TV tuner -R78-

-T12j- (H)	Designation		-T12l- (I)	Designation
1	Connection for external audio sources -R199- (Aux-In)		1	Voice command microphone -R206- (mic in -)
2	Connection for external audio sources -R199- (Aux-In earth)		2	Not assigned
3	CD changer -R41-		3	Not assigned
4	CD changer -R41- (terminal 30)		4	Not assigned
5	Not assigned		5	Mobile telephone operating electronics control unit -J412-
6	CD changer -R41- (CD bus radio DATA)		6	Mobile telephone operating electronics control unit -J412-
7	Interface for external multimedia units -R215- (Aux-in audio)		7	Voice command microphone -R206- (mic in +)
8	CD changer -R41- (CD-X audio left)		8	Not assigned
9	CD changer -R41- (CD-X audio right)		9	Not assigned
10	CD changer -R41- (terminal 15)		10	Not assigned
11	CD changer -R41- (CD bus)		11	Mobile telephone operating electronics control unit -J412-
12	CD changer -R41-		12	Mobile telephone operating electronics control unit -J412-

Control unit for terminal control and engine start -J942-   Note: The illustration does not correspond with the selected vehicle, but the fitting location is the same.

1 -	Control unit for terminal control and engine start -J942-

A -	32-pin connector -T32g-