Audi TT (2007 year). Manual - part 243

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.

5

382_044

Driver door 

control unit

J386

Telephone transmitter 

and receiver unit

R36

Front passenger 

door control unit

J387

Parking aid 

control unit

J446

Convertible top 

operation control unit

J256

Auxiliary air 

heater control unit

J604

Climatronic 
control unit

J255

Convenience system 

central control unit

J393

Onboard power 

supply control unit

J619

Tyre pressure monitor 

control unit

J502**

Digital satellite 

radio tuner

R190

Digital sound package 

control unit

J525

TV tuner

R78

Radio

R

Control unit with 

display for radio and 

navigation 

J503

CD changer

R41

Control unit with display 

in dash panel insert 

J285

Diagnostic port

* for tyre pressure monitoring system 2 only (ECE = Europe)
** for tyre pressure monitor only (SAE = North America)

Anti-theft alarm 

system sensor 

G578

Alarm horn

H12

Wiper motor 

control unit

J400

Rain and light 

detector sensor

G397

Powertrain CAN bus

infotainment CAN bus

Convenience CAN bus

Dash panel insert CAN bus

Diagnostics CAN bus

LIN bus

Subbus system

Panasonic bus

Data bus diagnostic interface

J533

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.

6

Overview

Installation overview - control units

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.

7

Legend

1

Garage door operation control unit J530

2

Direct shift gearbox mechatronics J743

3

Power steering control unit J500

4

Engine control unit J623

5

ABS control unit J104

6

Wiper motor control unit J400

7

Alarm horn H12

8

Onboard power supply control unit J519
Headlight range control, control unit J431

9

Data bus diagnostic interface J533

10

CD changer R41

11

Tyre pressure monitor control unit 2 J793 /
Tyre pressure monitor control unit J502*

12

Control unit with display in dash panel insert 
J285

13

Radio R
Control unit with display for radio and 
navigation J503
Climatronic control unit J255

14

Steering column electronics control unit J527
Steering angle sender G85
Multi-function steering wheel control unit 
J453

15

Rain and light detector sensor G397

16

Driver door control unit J386

17

Front passenger door control unit J387

18

Anti-theft alarm system sensor G578

19

Telephone transmitter and receiver unit R36

20

Airbag control unit J234

21

ECD control unit (electronically controlled 
damping) J250

22

Digital satellite radio tuner R190

23

Digital sound package control unit J525

24

Convenience system central control unit J393
Parking aid control unit J446
TV tuner R78

25

Radio controlled clock receiver J489

* for tyre pressure monitor only SAE

382_067

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.

8

The fuse and relay carriers

In the Audi TT Coupé ´07 the fuse and relay carriers 
are located in the following positions:

–

Electronics box in engine compartment, front left

–

Fuse carrier, dash panel left hand side on A-post

–

Onboard power supply control unit and auxiliary 
relay carrier below dash panel on left

–

Main fuse box directly on the battery

–

Auxiliary relay carrier in the boot on the right, 
below the boot trim

For details of fuse and relay assignments, please 
refer to the current service literature.

Overview

Fuses and relays

Auxiliary relay carrier below 
the boot trim

Electronics box