Audi TT (2007 year). Manual - part 141

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.

2.0 l - TDI, Common Rail (125 kW - 4 cylinder), engine code CBBB

from September 2008
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.  42 / 1

Edition 09.2009

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.

8J0-042020409

1

2

3

4

5

6

7

8

9

10

11

12

13

14

A

40

✱

ro

16,0

D1

ro/gn

4,0

B301

sw

50,0

T2b/2

ge

0,5

T75/27

J

234

T2b/1

br

0,5

T75/28

J

234

A1

B+

B1

SD

1

40A

SD

2

110A

SD

3

110A

--

N

253

C1

T47/1

J

104

ro

16,0

E1

B299

ro

10,0

sw

70,0

F1

P2

sw

35,0

18

sw

35,0

M

B

ro

4,0

50

42

14

sw

25,0

671

ro

6,0

238

ro

6,0

75

B300

P4

sw

35,0

✱ ✱

U

6

✱ ✱

238

42

75

18

ws = white

sw = black

ro

= red

br

= brown

gn

= green

bl

= blue

gr

= grey

li

= purple

ge

= yellow

or

= orange

rs

= pink

Battery, starter, battery isolation igniter, main fuse box, in

luggage compartment, rear right, on the battery

A

Battery

B

Starter

J104 ABS control unit

J234 Airbag control unit

N253 Battery isolation igniter

SD1 Fuse 1 on fuse holder D

SD2 Fuse 2 on fuse holder D

SD3 Fuse 3 on fuse holder D

T2b 2-pin connector, purple, on battery isolation igniter

T47 47-pin connector, on ABS control unit

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

U6

Slave start socket

14

Earth point, on gearbox

40

Earth point, under rear right seat

671 Earth point 1, on front of left longitudinal member

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

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

B301 Positive connection 5 (30), in main wiring harness

P2

Positive connection (30), in battery wiring harness

P4

Positive connection 2 (30), in battery wiring harness

*

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

**

models with slave start socket

 Audi TT

Current Flow Diagram

No.  42 / 2

Edition 09.2009

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.

8J0-042030409

15

16

17

18

19

20

21

22

23

24

25

26

27

28

sw

25,0

✱

ro/gn

6,0

A1

SA

3

60A

SA

4

110A

D1

ro

16,0

E1

B272

ro

6,0

45

C1

sw

35,0

14

SA

1

175A

B1

SA

2

80A

J1

SA

8

SA

7

40A

H1

SA

6

80A

SA

5

40A

ro

6,0

71

230

G

C

1

C

B+

T2/1

bl

0,5

D+

bl

0,5

T

4a/2

T2/2

bl/ws

0,5

DF

91

bl/ws

0,35

T

4a/1

111

ro/sw

10,0

ro/ge

4,0

213

219

F1

G1

bl

0,5

112

14

230

213

219

111

112

91

45

71

ws = white

sw = black

ro

= red

br

= brown

gn

= green

bl

= blue

gr

= grey

li

= purple

ge

= yellow

or

= orange

rs

= pink

Alternator, main fuse holder, electronics box, in engine

compartment

C

Alternator

C1

Voltage regulator

SA1 Fuse 1 on fuse holder A

SA2 Fuse 2 on fuse holder A

SA3 Fuse 3 on fuse holder A

SA4 Fuse 4 on fuse holder A

SA5 Fuse 5 on fuse holder A

SA6 Fuse 6 on fuse holder A

SA7 Fuse 7 on fuse holder A

SA8 Fuse 8 on fuse holder A

T2

2-pin connector, purple, on alternator

T4a 4-pin connector, black, in front left engine compartment

B272 Positive connection (30), in main wiring harness

*

Main fuse holder, electronics box, in front left engine

compartment

 Audi TT

Current Flow Diagram

No.  42 / 3

Edition 09.2009

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.

8J0-042040909

29

30

31

32

33

34

35

36

37

38

39

40

41

42

6/85

2/30

ro/sw

0,5

J

519

sw/bl

4,0

SC

31

40A

31a

SC

29

15A

29a

31

sw

4,0

29

B163

sw

4,0

T2t/2

J

519

J

682

4



ro

4,0

10

8/87

ro/sw

0,35

T8h/1

J

519

br

0,5

br

1,0

br

0,5

262

375

br

2,5

374

44

T11b/11

T52b/29

SC

11

10A

11

SC

7

5A

7a

sw

4,0

7

sw/bl

1,0

11a

SC

4

5A

4

sw/ro

0,5

4a

265

SC

1

10A

sw/bl

1,0

1a

sw

4,0

1

81

sw/bl

1,0

B277

ge/sw

0,5

2

SC

2

5A

200

ge/sw

0,5

2a

T47/8

J

104

sw/bl

0,5

270

sw/bl

1,0

220

sw/bl

0,5

108

B283

ro/sw

0,5

89

br

0,5

272

4/86

sw

4,0

J

681

8/87



#

##

##

#

#

ge/ro

0,5

271

200

265

271

89

108

220

270

4

81

10

262

272

ws = white

sw = black

ro

= red

br

= brown

gn

= green

bl

= blue

gr

= grey

li

= purple

ge

= yellow

or

= orange

rs

= pink

Terminal 50 voltage supply relay, fuses

J104 ABS control unit

J519 Onboard supply control unit

J681 Terminal 15 voltage supply relay 2

J682 Terminal 50 voltage supply relay

SC1 Fuse 1 on fuse holder C

SC2 Fuse 2 on fuse holder C

SC4 Fuse 4 on fuse holder C

SC7 Fuse 7 on fuse holder C

SC11 Fuse 11 on fuse holder C

SC29 Fuse 29 on fuse holder C

SC31 Fuse 31 on fuse holder C

T2t

2-pin connector, black connector L, on onboard supply control

unit

T8h 8-pin connector, black, connector F, on onboard supply control

unit

T11b 11-pin connector, black, connector A, on onboard power supply

control unit

T47 47-pin connector, on ABS control unit

T52b 52-pin connector, yellow, on onboard supply control unit

44

Earth point, lower part of left A-pillar

374 Earth connection 9, in main wiring harness

375 Earth connection 10, in main wiring harness

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

B277 Positive connection 1 (15a), in main wiring harness

B283 Positive connection 7 (15a), in main wiring harness

*

Relay carrier under left dash panel

**

Relay carrier on onboard power supply control unit

#

up to May 2009

##

from June 2009

 Audi TT

Current Flow Diagram

No.  42 / 4

Edition 09.2009