Audi TT (2007 year). Manual - part 105

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.

8J0-021080806

85

86

87

88

89

90

91

92

93

94

95

96

97

98

T26a/2

T20d/16

or/sw

0,35

J

431

B384

or/sw

0,35

J

533

T20c/12

or/sw

0,35

J

527

B383

or/sw

0,35

T47a/23

J

250

•

✱

T26a/3

T20d/6

or/br

0,35

B391

or/br

0,35

J

533

T20c/11

or/br

0,35

J

527

B390

or/br

0,35

T47a/22

J

250

•

✱

or/sw

0,35

or/br

0,35

ws = white

sw = black

ro

= red

br

= brown

gn

= green

bl

= blue

gr

= grey

li

= purple

ge

= yellow

or

= orange

rs

= pink

Control unit for headlight range control, CAN bus wiring

J250 Electronically controlled damping control unit

J431 Headlight range control, control unit

J527 Steering column electronics control unit

J533 Data bus diagnostic interface

T20c 20-pin connector, black, connector A, on steering column

electronics control unit

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

T26a 26-pin connector, black, on headlight range control, control unit

T47a 47-pin connector, on electronically controlled damping control

unit

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

B384 Connection 2 (drive train CAN bus, high), in main wiring harness

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

B391 Connection 2 (drive train CAN bus, low), in main wiring harness

•

CAN bus (data wire)

*

with electronically controlled damping

 Audi TT

Current Flow Diagram

No.  21 / 8

Edition  09.2006

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.

Multifunction steering wheel

from model year 2007
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.  22 / 1

Edition  04.2010

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.

8J0-022020909

1

2

3

4

5

6

7

8

9

10

11

12

13

14

J

527

ro

6,0

B300

ro

10,0

SC

32

5A

32

32a

T20c/13

T20c

/20

31

br

1,0

44

SD

3

110 A



br

2,5

374

ro/bl

0,5

12

sw/ws

0,35

T20c/16

ge/bl

0,35

J

623

#

T10p/2



E

313

F

189



T20c

/17

15

sw/ws

0,35

T12e

/11

J

519

T20c

/18

50

ro/sw

0,35

T12e/1

J

519

T20c/19

30

ro/bl

0,5

1

ro

16,0

B299

E1





##

T52c

/31

T52c/14

#

##

1

12

ws = white

sw = black

ro

= red

br

= brown

gn

= green

bl

= blue

gr

= grey

li

= purple

ge

= yellow

or

= orange

rs

= pink

Steering column electronics control unit, fuses

E313 Selector lever

F189 Tiptronic switch

J519 Onboard supply control unit

J527 Steering column electronics control unit

J623 Engine control unit

SC32 Fuse 32 on fuse holder C

SD3 Fuse 3 on fuse holder D

T10p 10-pin connector, on Tiptronic switch

T12e 12-pin connector, black, connector G, on onboard power supply

control unit

T20c 20-pin connector, black, connector A, on steering column

electronics control unit

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

44

Earth point, lower part of left A-pillar

374 Earth connection 9, in main wiring harness

B299 Positive connection 3 (30), in main wiring harness

B300 Positive connection 4 (30), in main wiring harness

*

main fuse box, in luggage compartment, rear right, on the battery

**

models with direct shift gearbox 02E and automatic gearbox

***

⇒ Engine Current Flow Diagram

#

up to May 2009

##

from June 2009

 Audi TT

Current Flow Diagram

No.  22 / 2

Edition  04.2010

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.

8J0-022030410

15

16

17

18

19

20

21

22

23

24

25

26

27

28

J

527

+

E

221

J

453

H

ws

0,35

T4d/1

J

234

T75/22

ge

0,35

T4d/2

T75/23

or

0,35

T4d/4

T75/37

br

0,35

T4d/3

T75/38

✱

✱

F

138

T10ah

/4

T10ah

/3

T10ah

/5

T10ah/6

--

+

N

95

--

+

N

250

T10ah

/8

T10ah/7

31

--

T10ah

/10

15

LIN

T10ah

/9

BUS

ws

0,5

ge

0,5

br

0,5

sw

0,5

✱✱

✱✱

✱✱

✱✱

ws = white

sw = black

ro

= red

br

= brown

gn

= green

bl

= blue

gr

= grey

li

= purple

ge

= yellow

or

= orange

rs

= pink

Steering column electronics control unit, airbag coil

connector and return spring with slip ring, driver side airbag

igniter, horn plate, multifunction steering wheel control unit

E221 Operating unit in steering wheel

F138 Airbag coil connector and return spring with slip ring

H

Horn plate

J234 Airbag control unit

J453 Multifunction steering wheel control unit

J527 Steering column electronics control unit

N95 Driver side airbag igniter

N250 Driver side airbag igniter 2

T4d 4-pin connector, yellow, on steering column electronics control

unit

T10ah 10-pin connector, on steering column electronics control unit

T75 75-pin connector, yellow, on airbag control unit

*

short circuit bridge becomes effective when connector is

unplugged

**

from June 2009

 Audi TT

Current Flow Diagram

No.  22 / 3

Edition  04.2010