Audi TT (2007 year). Manual - part 180

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not 
 permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability 
     with respect to the correctness of information in this document. Copyright by AUDI AG.

Haldex coupling with four-wheel drive

from June 2009
Notes:

For information concerning

♦ Position of relays and fuses
♦ Multi-pin connections
♦ Control units and relays
♦ Earth connections
⇒  List of Fitting Locations!

For information concerning

♦ Fault Finding Programs
⇒  guided fault finding

 Audi TT

Current Flow Diagram

No.  53 / 1

Edition  04.2009

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not 
 permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability 
     with respect to the correctness of information in this document. Copyright by AUDI AG.

8J0-053020409

1

2

3

4

5

6

7

8

9

10

11

12

13

14

J

492

SC

7

5A

T8o/1

sw

4,0

sw

4,0

B163

662

J

681

SC

8

10A

7a

7

8

sw/gr

1,0

8a

sw

4,0

17

8/87

T

6q/1

M

V

181

T8o/2

31

T

6q

/2

393

br

1,0

br

1,0

T8o/8

T

6q/6

or/sw

0,35

or/sw

0,35

T20d

/16

J

533

•

or/sw

0,35

J

623

✱

B383

T8o/7

T

6q/5

or/br

0,35

•

or/br

0,35

J

623

✱

B390

or/br

0,35

T20d/6

J

533

0,5

✱

✱

br

0,5

or/sw

0,35

or/br

0,35

sw/bl

0,5

#

17

ws = white

sw = black

ro

= red

br

= brown

gn

= green

bl

= blue

gr

= grey

li

= purple

ge

= yellow

or

= orange

rs

= pink

Four-wheel drive control unit, haldex coupling pump, fuses

J492 Four-wheel drive control unit

J533 Data bus diagnostic interface

J623 Engine control unit

J681 Terminal 15 voltage supply relay 2

SC7 Fuse 7 on fuse holder C

SC8 Fuse 8 on fuse holder C

T6q 6-pin connector, black, on four-wheel drive control unit

T8o 8-pin connector, black, on four-wheel drive control unit

T20d 20-pin connector, black, on data bus diagnostic interface

V181 Haldex coupling pump

393 Earth connection 28, in main wiring harness

662 Earth point, rear left side panel

B163 Positive connection 1 (15), in interior wiring harness

B383 Connection 1 (drive train CAN bus, high), in main wiring harness

B390 Connection 1 (drive train CAN bus, low), in main wiring harness

•

CAN bus (data wire)

*

⇒ Engine Current Flow Diagram

**

according to the equipment

#

Relay carrier on onboard power supply control unit

 Audi TT

Current Flow Diagram

No.  53 / 2

Edition  04.2009

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not 
 permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability 
     with respect to the correctness of information in this document. Copyright by AUDI AG.

8J0-053030409

15

16

17

18

19

20

21

22

23

24

25

26

27

28

J

492

SC

1

10A

T8o/3

672

SC

2

5A

1a

1

2

ge/sw

0,5

sw

4,0

4

T

6q/3

N

373

br

6,0

sw/ge

0,5

sw/ge

0,35

J

623

✱

B335

sw/ge

0,35

T52c/17

J

519

22

ge/sw

0,5

2a

T47/8

J

104

G

437

ϑ

sw/ge

0,35

T47/4

J

104

sw/ge

0,35

F

47

F

br

0,5

372

T4t/2

ge/sw

0,5

T4t/4

18

br

2,5

T4t/3

ws/gn

0,35

T4t/1

J

623

✱

366

T2ag/1 T2ag/2

sw/ro

0,35

4

22

18

ws = white

sw = black

ro

= red

br

= brown

gn

= green

bl

= blue

gr

= grey

li

= purple

ge

= yellow

or

= orange

rs

= pink

Four-wheel drive control unit, brake light switch, oil pressure

and oil temperature sender, coupling opening control valve

F

Brake light switch

F47 Brake pedal switch

G437 Oil pressure and oil temperature sender

J104 ABS control unit

J492 Four-wheel drive control unit

J519 Onboard supply control unit

J623 Engine control unit

N373 Coupling opening control valve

SC1 Fuse 1 on fuse holder C

SC2 Fuse 2 on fuse holder C

T2ag 2-pin connector, near four-wheel drive control unit

T4t

4-pin connector, black, on brake light switch

T6q 6-pin connector, black, on four-wheel drive control unit

T8o 8-pin connector, black, on four-wheel drive control unit

T47 47-pin connector, on ABS control unit

T52c 52-pin connector, brown, on onboard supply control unit

366 Earth connection 1, in main wiring harness

372 Earth connection 7, in main wiring harness

672 Earth point 2, on front of left longitudinal member

B335 Connection 1 (54), in main wiring harness

*

⇒ Engine Current Flow Diagram

 Audi TT

Current Flow Diagram

No.  53 / 3

Edition  04.2009

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not 
 permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability 
     with respect to the correctness of information in this document. Copyright by AUDI AG.

Headlight for gaseous discharge light (Bixenon) and automatic headlight range control

from June 2009
Notes:

For information concerning

♦ Position of relays and fuses
♦ Multi-pin connections
♦ Control units and relays
♦ Earth connections
⇒  List of Fitting Locations!

For information concerning

♦ Fault Finding Programs
⇒  guided fault finding

 Audi TT

Current Flow Diagram

No.  54 / 1

Edition  04.2009