AUDI TT 2012 – Convenience system, right-hand drive . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI TT 2012 - Driver door control unit

J386	Driver door control unit
SD3	Fuse 3 on fuse holder D
SC12	Fuse 12 on fuse holder C
SC22	Fuse 22 on fuse holder C
SC26	Fuse 26 on fuse holder C
SC27	Fuse 27 on fuse holder C
T20a	20-pin connector, in front right door
T20f	20-pin connector
43	Earth point, lower part of right A-pillar
391	Earth connection 26, 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, on battery on rear right in luggage compartment

Wiring Diagram AUDI TT 2012 - Driver door control unit

J386	Driver door control unit
J533	Data bus diagnostic interface
T20a	20-pin connector, in front right door
T20d	20-pin connector
T20f	20-pin connector
Y7	Automatic anti-dazzle interior mirror
B397	Connection 1 (convenience CAN bus, high), in main wiring harness
B406	Connection 1 (convenience CAN bus, low), in main wiring harness
B427	Connection 1 (mirror signal), in main wiring harness
B428	Connection 2 (mirror signal), in main wiring harness
*	see applicable current flow diagram for basic equipment
*2	Data bus wire (CAN bus)
*3	Only models with automatic anti-dazzle interior mirror

Wiring Diagram AUDI TT 2012 - Driver door control unit - Central locking SAFELOCK function warning lamp

J386	Driver door control unit
K133	Central locking SAFELOCK function warning lamp
T20a	20-pin connector, in front right door
T20f	20-pin connector
43	Earth point, lower part of right A-pillar
388	Earth connection 23, in main wiring harness
389	Earth connection 24, in main wiring harness
390	Earth connection 25, in main wiring harness

Wiring Diagram AUDI TT 2012 - Driver side central locking lock unit - Driver door control unit

F2	Driver door contact switch
F133	Front right central locking actuator
F220	Driver side central locking lock unit
F241	Driver side contact switch in lock cylinder
J386	Driver door control unit
T20f	20-pin connector
V56	Driver door central locking motor
V161	Driver door central locking SAFELOCK function motor

Wiring Diagram AUDI TT 2012 - Alarm system off switch - Driver door control unit

E183	Interior monitoring switch
E217	Alarm system off switch
J386	Driver door control unit
L156	Switch illumination bulb
T32f	32-pin connector
205	Earth connection, in driver door wiring harness
R52	Connection (58s), in driver side door wiring harness
*	From June 2010
*2	Up to May 2010

Wiring Diagram AUDI TT 2012 - Rear lid remote release button - Fuel tank flap release button - Operating unit for window regulator in driver door - Driver door control unit - Driver side window regulator motor

E40	Front left window regulator switch
E81	Front right window regulator switch in driver door
E233	Rear lid remote release button
E319	Fuel tank flap release button
E512	Operating unit for window regulator in driver door
J386	Driver door control unit
L156	Switch illumination bulb
T32f	32-pin connector
V147	Driver side window regulator motor
205	Earth connection, in driver door wiring harness
303	Earth connection 3, in drive side door wiring harness
R52	Connection (58s), in driver side door wiring harness
*	gradual introduction

Wiring Diagram AUDI TT 2012 - Mirror adjustment switch - Driver side interior locking button for central locking system - Driver door control unit - Driver side door interior handle illumination bulb - Driver side door warning lamp - Front right entry light

E43	Mirror adjustment switch
E48	Mirror adjustment changeover switch
E168	Adjustment switch for mirror with fold-in feature
E308	Driver side interior locking button for central locking system
J386	Driver door control unit
L146	Driver side door interior handle illumination bulb
T32f	32-pin connector
W30	Driver side door warning lamp
W32	Front right entry light
303	Earth connection 3, in drive side door wiring harness
R65	Positive connection (58), in driver door wiring harness
*	Only models with additional lights
*2	gradual introduction

Wiring Diagram AUDI TT 2012 - Driver door control unit - Driver side mirror adjustment motor

J386	Driver door control unit
L131	Driver side turn signal repeater bulb
T16f	16-pin connector
V17	Driver side mirror adjustment motor
V121	Driver side fold-in mirror motor
V149	Driver side mirror adjustment motor
Y20	Driver side automatic anti-dazzle exterior mirror
Z4	Heated exterior mirror on driver side
*	Only models with fold-in mirror
*2	Only models with heated exterior mirrors
*3	Only models with automatic anti-dazzle exterior mirror

Wiring Diagram AUDI TT 2012 - Front passenger door control unit

J387	Front passenger door control unit
T20b	20-pin connector, in front left door
T20g	20-pin connector
44	Earth point, lower part of left A-pillar
B398	Connection 2 (convenience CAN bus, high), in main wiring harness
B407	Connection 2 (convenience CAN bus, low), in main wiring harness
*	Data bus wire (CAN bus)
*2	Only models with automatic anti-dazzle interior mirror

Wiring Diagram AUDI TT 2012 - Front passenger side central locking lock unit - Front passenger door control unit

F3	Front passenger door contact switch
F131	Front left central locking actuator
F221	Front passenger side central locking lock unit
J387	Front passenger door control unit
T20g	20-pin connector
V57	Front passenger seat central locking motor
V162	Front passenger door central locking SAFELOCK function motor

Wiring Diagram AUDI TT 2012 - Window regulator switch in front passenger door - Front passenger door control unit - Front passenger side door interior handle illumination bulb - Front left entry light - Front passenger side door warning lamp

E107	Window regulator switch in front passenger door
J387	Front passenger door control unit
L147	Front passenger side door interior handle illumination bulb
T32g	32-pin connector
V148	Front passenger side window regulator motor
W31	Front left entry light
W36	Front passenger side door warning lamp
304	Earth connection 3, in front passenger side door wiring harness
R53	Connection (58s), in driver side door wiring harness
*	Only models with additional lights

Wiring Diagram AUDI TT 2012 - Front passenger door control unit - Front passenger side mirror adjustment motor - Front passenger side automatic anti-dazzle exterior mirror - Heated exterior mirror on front passenger side

J387	Front passenger door control unit
L132	Front passenger side turn signal repeater bulb
T16g	16-pin connector
V25	Front passenger side mirror adjustment motor
V122	Front passenger side fold-in mirror motor
V150	Front passenger side mirror adjustment motor
Y21	Front passenger side automatic anti-dazzle exterior mirror
Z5	Heated exterior mirror on front passenger side
*	Only models with fold-in mirror
*2	Only models with heated exterior mirrors
*3	Only models with automatic anti-dazzle exterior mirror

Wiring Diagram AUDI TT 2012 - Onboard supply control unit

J519	Onboard supply control unit
SF1	Fuse 1 in fuse holder F
SD2	Fuse 2 on fuse holder D
SF2	Fuse 2 in fuse holder F
SF7	Fuse 7 in fuse holder F
SF8	Fuse 8 in fuse holder F
SF10	Fuse 10 in fuse holder F
T52a	52-pin connector
T52b	52-pin connector
T52c	52-pin connector
B301	Positive connection 5 (30), in main wiring harness
B302	Positive connection 6 (30), in main wiring harness
*	Main fuse box, on battery on rear right in luggage compartment

Wiring Diagram AUDI TT 2012 - Bonnet contact switch - Onboard supply control unit

F266	Bonnet contact switch
J519	Onboard supply control unit
T52a	52-pin connector
T52b	52-pin connector
T52c	52-pin connector
42	Earth point, next to steering column
44	Earth point, lower part of left A-pillar
374	Earth connection 9, in main wiring harness
392	Earth connection 27, in main wiring harness
*	Data bus wire (CAN bus)

Wiring Diagram AUDI TT 2012 - Anti-theft alarm sensor - Alarm horn - Onboard supply control unit - Central locking and anti-theft alarm system aerial

G273	Interior monitoring sensor
G384	Vehicle inclination sender
G578	Anti-theft alarm sensor
H12	Alarm horn
J519	Onboard supply control unit
R11	Aerial
R24	Aerial amplifier
R47	Central locking and anti-theft alarm system aerial
R130	Rear window aerial 1
ST1	Fuse carrier 1
SA4	Fuse 4 in fuse holder A
SB5	Fuse 5 on fuse holder B
SB8	Fuse 8 on fuse holder B
T2ad	2-pin connector, on right in luggage compartment
T4p	4-pin connector
T52b	52-pin connector
T52c	52-pin connector
44	Earth point, lower part of left A-pillar
370	Earth connection 5, in main wiring harness
B272	Positive connection (30), in main wiring harness
B528	Connection 1 (LIN bus) in main wiring harness
*	For models with anti-theft alarm system
*2	Anti-theft alarm system with interior monitoring
*3	Coupé
*4	Relay and fuse carrier, in E-box in engine compartment
*5	Roadster

Wiring Diagram AUDI TT 2012 - Adjustable rear spoiler switch - Onboard supply control unit

E127	Adjustable rear spoiler switch
E461	Operating unit in front of centre console
F135	Rear spoiler adjustment limit switch 1
F136	Rear spoiler adjustment limit switch 2
J519	Onboard supply control unit
K242	Rear spoiler position warning lamp
T6f	6-pin connector, near left tail light
T8l	8-pin connector
T16b	16-pin connector
T52a	52-pin connector
T52b	52-pin connector
V52	Adjustable rear spoiler motor
44	Earth point, lower part of left A-pillar
384	Earth connection 19, in main wiring harness
393	Earth connection 28, in main wiring harness
394	Earth connection 29, in main wiring harness
662	Earth point, rear left side panel
*	Only models with electrically adjustable rear spoiler

Wiring Diagram AUDI TT 2012 - Rear lid contact switch for anti-theft alarm - Onboard supply control unit - Rear lid central locking motor - Tank filler flap locking motor

F123	Rear lid contact switch for anti-theft alarm
G304	Glass breakage sensor for rear window
J519	Onboard supply control unit
T8e	8-pin connector, near left tail light
T52a	52-pin connector
T52b	52-pin connector
V53	Rear lid central locking motor
V155	Tank filler flap locking motor
218	Earth connection 1, in rear lid wiring harness
662	Earth point, rear left side panel
*	For models with anti-theft alarm system
*2	Coupé

Wiring Diagram AUDI TT 2012 - Light switch - Onboard supply control unit

E1	Light switch
E284	Garage door operating unit
J519	Onboard supply control unit
T6	6-pin connector
T52b	52-pin connector
T52c	52-pin connector
W1	Front interior light
375	Earth connection 10, in main wiring harness
B340	Connection 1 (58d), in main wiring harness
*	Gradually discontinued
*2	Coming Home switch

AUDI TT 2012 Overview of control units

Overview of control units

Climatronic control unit -J255-

q	Components:-E230-, -G56-, -V42-, -E94-, -E95-

q	Location and connector assignment

Control unit in dash panel insert -J285-

q	Components:-G1-, -Y24-, -K3-, -K32-, -Y8-, -J362-, -K28-

q	Location and connector assignment

Front passenger door control unit -J387-

q	Components:-V148-

q	Location and connector assignment

Steering column electronics control unit -J527-

q	Components:-D-, -N376-, -G85-, -E45-, -E2-, -E4-, -E22-, -F138-, -H-, -N95-, -N250-

q	Location and connector assignment

Control unit for parking aid -J446-

q	Components -R78-

q	Location and connector assignment

q	is dropped from May 2009

Digital sound package control unit -J525-

q	Components -R87-

q

Location

Driver door control unit -J386-

q	Components:-V147-

q	Location and connector assignment

q	Location and connector assignment from June 2009

Left gas discharge bulb control unit -J343-/right gas discharge light control unit -J344-

q	Components -J667-, -J668-, -V294-, -V295-, -V48-, -V49-

q	Location and connector assignment

AUDI TT 2012 ABS control unit J104 Unlock Lifetime Access for This Car. A -  ABS control unit -J104- . AUDI TT 2012 Engine control unit J623 Engine control unit -J623- Fitting location

in plenum chamber -1-. Connector assigment

Unlock Lifetime Access for This Car.

A -	Engine control unit -J623-

C -	60-pin connector -T60-, black, on wiring harness

Connector assignment, 3.2 I V6

A -	Engine control unit -J623-

C -	40-pin connector -T40-, black, on wiring harness

Back to overview . AUDI TT 2012 Control unit for parking aid J446 Control unit for parking aid -J446- Fitting location

on right in luggage compartment -3-. 1 -  TV tuner -R78- 2 -  Fuse holder on right in luggage compartment 3 -  Control unit for parking aid -J446- 4 -  Convenience system central control unit -J393-, up to May 2009 Connector assignment of parking aid control unit -J446-

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C -	12-pin connector -T12l-, black

Back to overview . AUDI TT 2012 Convenience system central control unit J393 , up to May 2009 Convenience system central control unit -J393-, up to May 2009 Fitting location

on right in luggage compartment -4-. 1 -  TV tuner -R78- 2 -  Fuse holder on right in luggage compartment 3 -  Control unit for parking aid -J446- 4 -  Convenience system central control unit -J393- Connector assignment of convenience system central control unit -J393-

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A -	Convenience system central control unit -J393-

B -

Vacant

D -	8-pin connector -T8g-, black, on wiring harness

F -	18-pin connector -T18f-, black, on wiring harness

Back to overview . AUDI TT 2012 Driver door control unit J386 Unlock Lifetime Access for This Car. A -  Driver door control unit -J386- C -  16-pin connector -T16f-, black, on wiring harness D -  20-pin connector -T20f-, black, on wiring harness Back to overview . AUDI TT 2012 Front passenger door control unit J387 Unlock Lifetime Access for This Car. A -  Front passenger door control unit -J387- C -  16-pin connector -T16g-, black, on wiring harness D -  20-pin connector -T20g-, black, on wiring harness Back to overview . AUDI TT 2012 Convertible roof actuation control unit J256 , Roadster Convertible roof actuation control unit -J256-, Roadster Fitting location     in insert, luggage compartment -6-. 1 -  Aerial amplifier for mobile telephone -R86-, not USA  -  Satellite radio -R146-, only USA 2 -  Breakdown set 3 -  Towline anchorage 4 -  Warning triangle 5 -  battery -A- 6 -  Convertible roof actuation control unit -J256-, only Roadster 7 -  Tools 8 -  Jack Connector assignment of convertible roof actuation control unit -J256-   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. 2 -  10-pin connector -T10v-, black Back to overview . AUDI TT 2012 Digital sound package control unit J525 Digital sound package control unit -J525- Fitting location     on left in luggage compartment -1-. 1 -  Digital sound package control unit -J525- 2 -  Satellite radio -R146-, only USA  -  Aerial amplifier for mobile telephone -R86-, not USA  -  Aerial filter -R87-, only USA, up to October 2006 Back to overview . AUDI TT 2012 Electronically controlled damping control unit J250 under front passenger seat -5-. 1 -  10-pin connector -T10i-, black 2 -  3-pin connector -T3d-, yellow 3 -  6-pin, connector -T6e-, green 4 -  10-pin connector -T10g-, red 5 -  Electronically controlled damping control unit -J250- Connector assignment of electronically controlled damping control unit -J250-   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. A -  47-pin connector -T47-, black Back to overview . AUDI TT 2012 Steering column electronics control unit J527 A -  Vacant C -  20-pin connector -T20c-, black, on wiring harness E -  12-pin connector -T12i- G -  10-pin connector -T10ag- H -  10-pin connector -T10ah- Back to overview . AUDI TT 2012 onboard supply control unit J519 , up to May 2009 onboard supply control unit -J519-, up to May 2009 Fitting location     behind​ the​ shelf​ on​ the​ driver's​ side,​ on left​ next​ to​ steering column -2-. 1 -  Relay carrier behind left of dash panel 2 -  onboard supply control unit -J519- Connector assignment onboard supply control unit -J519-   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. B -  12-pin connector -T12c-, black D -  11-pin connector -T11c-, brown F -  8-pin connector -T8h-, black J -  6-pin, connector -T6h-, black L -  2-pin connector -T2t-, black Back to overview . AUDI TT 2012 onboard supply control unit J519 , from June 2009 behind shelf on front passenger side -3- 1 -  Relay carrier behind dash panel 2 -  fuse holder C 3 -  onboard supply control unit -J519- 4 -  Relay carrier on onboard supply control unit -J519- Connector assignment onboard supply control unit -J519-   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. 2 -  52-pin connector -T52b-, yellow 3 -  52-pin connector -T52c-, brown Back to overview . AUDI TT 2012 Control unit in dash panel insert J285 Unlock Lifetime Access for This Car. 1 -  32-pin connector -T32-, blue Back to overview . AUDI TT 2012 Data bus diagnostic interface J533 Unlock Lifetime Access for This Car. 1 -  20-pin connector -T20d-, black Back to overview . AUDI TT 2012 Headlight range control, control unit J431 Unlock Lifetime Access for This Car. A -  Headlight range control, control unit -J431- B -  26-pin connector -T26a-, black, on wiring harness Back to overview . AUDI TT 2012 Airbag control unit J234 Unlock Lifetime Access for This Car. A -  75-pin connector -T75-, yellow Back to overview . AUDI TT 2012 Fuel pump control unit J538 A -  Fuel pump control unit -J538- Connector assigment     Unlock Lifetime Access for This Car. A -  Fuel pump control unit -J538- B -  10-pin connector -T10k-, black, on wiring harness Back to overview . AUDI TT 2012 Tyre pressure monitor control unit 2 J793 Unlock Lifetime Access for This Car. 1 -  18-pin connector -T18c-, black Back to overview . AUDI TT 2012 Climatronic control unit J255 Unlock Lifetime Access for This Car. 2 -  20-pin connector -T20k- 4 -  16-pin connector -T16c-, brown 5 -  3-pin connector -T3ae-, black Back to overview . AUDI TT 2012 Wiper motor control unit J400 Wiper motor control unit -J400- Fitting location in driver side plenum chamber.     Unlock Lifetime Access for This Car. 3 -  Wiper motor control unit -J400- 5 -  4-pin connector -T4-, black Back to overview . AUDI TT 2012 Radiator fan control unit J293 1 -  4-pin connector -T4c-, black 2 -  4-pin connector -T4c-, black 3 -  Radiator fan control unit -J293- Radiator fan -V7- 4 -  Radiator fan 2 -V177- Back to overview . AUDI TT 2012 Power steering control unit J500 A -  Power steering control unit -J500- B -  2-pin connector -T2s-, black Back to overview . AUDI TT 2012 Radio controlled clock receiver J489 Radio controlled clock receiver -J489- Fitting location     behind the rear left bumper. 1 -  Radio controlled clock receiver -J489- Back to overview . AUDI TT 2012 Battery monitor control unit J367 On the battery -A-. 1 -  battery -A- 2 -  Battery monitor control unit -J367- 2 -  2-pin connector -T2au-, yellow Back to overview . AUDI TT 2012 Tyre pressure monitor control unit J502 , USA Tyre pressure monitor control unit -J502-, USA Fitting location behind instrument cluster.   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. 1 -  Tyre pressure monitor control unit -J502- A -  18-pin connector -T18c-, black Connector assignment of tyre pressure monitor control unit -J502-     - T18c - Designation   - T18c - Designation 1     10   2     11   3 Terminal 30   12   4     13   5 Convenience CAN bus high   14   6 Convenience CAN bus low   15   7     16 Tyre pressure monitor button -E226-, in operating unit in front of centre console -E461- 8     17   9 Terminal 31   18   Back to overview . AUDI TT 2012 Left gas discharge bulb control unit J343 / right gas discharge light control unit J344 Left gas discharge bulb control unit -J343-/right gas discharge light control unit -J344- Fitting location At headlight.     Unlock Lifetime Access for This Car. 1 -  Bi-Xenon gas discharge headlights with cornering light, left and right q   Output module for left headlight -J667-Output module for right headlight -J668-, in headlight housing 2 -  Left gas discharge bulb control unit -J343-/right gas discharge light control unit -J344- 14-pin connector -T14a-/14-pin connector -T14b-, black Back to overview . AUDI TT 2012 Anti-theft alarm sensor G578 1 -  Front interior light -W1- with anti-theft alarm sensor -G578- A -  4-pin connector -T4p- Connector assignment of anti-theft alarm sensor -G578-     - T4p - (A) Designation   - T4p - (A) Designation 1     3 onboard supply control unit -J519- 2 Terminal 31   4 Terminal 30 Back to overview . AUDI TT 2012 Front interior light W1 1 -  Front interior light -W1- q   with front passenger side reading light -W13-, Driver side reading lamp -W19-, Driver side reading lamp button -E457-, Front passenger side reading lamp button -E458- A -  6-pin, connector -T6m-, brown Connector assignment of front interior light -W1-     - T6m - (A) Designation   - T6m - (A) Designation 1 Terminal 31   4 onboard supply control unit -J519-, terminal 30a 2 onboard supply control unit -J519- 5 Terminal 58s 3 Automatic anti-dazzle interior mirror -Y7-   6 Terminal 30 Back to overview .     AUDI TT 2012 Overview of convertible roof components Overview of convertible roof components Unlock Lifetime Access for This Car. q   Location convertible roof latch open switch -F294- 5 -  Convertible roof latch closed switch -F295-, right q   Location Right convertible top cover motor -V381-/right sender for convertible roof cover -G597- q   Location Left convertible top cover motor -V383-/left sender for convertible roof cover -G596- q   Location . in centre console -1-. Back to overview . In front left of luggage compartment -1-. Back to overview . On windbreak at centre of luggage compartment wall -1-. Back to overview . On convertible roof linkage at front centre -1-. Back to overview . On left roof cross member behind the sun visor -1-. Back to overview . On right roof cross member behind the sun visor -1-. Back to overview . On convertible roof linkage at front left -1-. Back to overview . On convertible roof linkage at front right -1-. Back to overview . AUDI TT 2012 Routing rear lid/roof On convertible roof mechanism at lower left behind the side trim panel -1-. Back to overview . On convertible roof mechanism at left behind the side trim panel -1-. Back to overview . Under the right convertible top cover -1-. Back to overview . Under the left convertible top cover -1-. Back to overview . Unlock Lifetime Access for This Car. 1 -  Convertible roof latch open switch -F294- 2 -  Contact for convertible roof latch open switch -F294- 3 -  Cable to 4-pin connector -T4w- Back to overview .     AUDI TT 2012 Overview of fuses Overview of fuses Unlock Lifetime Access for This Car. AUDI TT 2012 Fuses (SA) on fuse holder A Unlock Lifetime Access for This Car. A -  Screw​ connection​ terminal​ 30​ (C)​ of main fuse carrier on the battery -A- SA -  Fuses on fuse holder A q   Position of fuses Back to overview .     . AUDI TT 2012 Fuses (SB) on fuse holder B Fuses (SB) on fuse holder B     In electronics box, on left in engine compartment -1-. Fuse colours 40 A -  orange 30 A -  green 25 A -  white 20 A -  yellow 15 A -  blue 10 A -  red 7,5 A -  brown 5 A -  beige   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. 1 -  Fuse carrier ST1, black q   Position of fuses 2 -  Fuse carrier ST2, brown q   Position of fuses 3 -  Vacant 4 -  Vacant Back to overview .     .     . AUDI TT 2012 Fuses (SC) on fuse holder C Fuses (SC) on fuse holder C     Left-hand drive: at left of dash panel -1- 1 -  fuse holder C 2 -  Relay carrier behind dash panel 3 -  onboard supply control unit -J519- 4 -  Relay carrier on onboard supply control unit -J519-, from June 2009   Unlock Lifetime Access for This Car. Right-hand drive: at right of dash panel -2-. 1 -  Relay carrier behind dash panel 2 -  fuse holder C 3 -  onboard supply control unit -J519- 4 -  Relay carrier on onboard supply control unit -J519-, from June 2009 Fuse colours 40 A -  orange 30 A -  green 25 A -  white 20 A -  yellow 15 A -  blue 10 A -  red 7,5 A -  brown 5 A -  beige   Unlock Lifetime Access for This Car. Fuse locations   Unlock Lifetime Access for This Car. No.   Current Flow Diagram designation Nominal value   Function/component Terminal 1 - Fuse 1 on fuse holder C -SC1- 10 A - Fuel pump relay -J17- Electric fuel pump 2 relay -J49-1) Fuel pump control unit -J538- Engine control unit -J623- Front passenger front airbag deactivated warning lamp -K145- Light switch illumination bulb -L9- 16-pin connector, diagnostic connector -T16- 15 2 - Fuse 2 on fuse holder C -SC2- 5 A - ABS control unit -J104- Brake light switch -F- 15 3 - Fuse 3 on fuse holder C -SC3- 5 A - Output module for left headlight -J667- 15 4 - Fuse 4 on fuse holder C -SC4- 5 A - Oil level and oil temperature sender -G266- Tyre pressure monitor button -E226- Tyre pressure monitor control unit 2 -J793- TCS and ESP button -E256- Headlight range control, control unit -J431- High-pressure sender -G65- Reversing light switch -F4- 15 5 - Fuse 5 on fuse holder C -SC5- 10 A5) 5 A6) - Right headlight range control motor -V49-5) Left headlight range control motor -V48-5) Headlight range control adjuster -E102-5) Control unit for headlight range control -J431-6) Power output module for right headlight -J668-6) 15 6 - Fuse 6 on fuse holder C -SC6- 5 A - Power steering control unit -J500- Data bus diagnostic interface -J533- Selector lever sensors control unit -J587- Mechatronic unit for dual clutch gearbox -J743- 15 7 - Fuse 7 on fuse holder C -SC7- 5 A - Control unit for parking aid -J446- Automatic anti-dazzle interior mirror -Y7- Garage door operating unit -E284- Garage door operation control unit -J530- Left washer jet heater element -Z20- Right washer jet heater element -Z21- onboard supply control unit -J519- Washer pump relay -J576- Cabrio windbreak control unit -J531- 15 8 - Fuse 8 on fuse holder C -SC8- 5 A 10 A2) - All-wheel drive control unit -J492- 15 9 - Fuse 9 on fuse holder C -SC9- 5 A - Electronically controlled damping control unit -J250- 15 10 - Fuse 10 on fuse holder C -SC10- 5 A - Airbag control unit -J234- Seat occupied recognition control unit -J706-7) 15 11 - Fuse 11 on fuse holder C -SC11- 10 A1)4) 5 A3) - Air mass meter -G70-3) 4) Structure-borne noise control unit -J869-4) Crankcase breather heater element -N79-1) 4) 15 12 - Fuse 12 on fuse holder C -SC12- 10 A - Driver door control unit -J386- Front passenger door control unit -J387- 30 13 - Fuse 13 on fuse holder C -SC13- 10 A - 16-pin connector -T16-, diagnostic connector 30 14 - Fuse 14 on fuse holder C -SC14- 5 A 15 A15) - Light/rain sensor -G397-12) Selector lever sensors control unit -J587-14) Mechatronic unit for dual clutch gearbox -J743-15) 30 15 - Fuse 15 on fuse holder C -SC15- 5 A 15 A13) - onboard supply control unit -J519- Front interior light -W1- Light/rain sensor -G397-13) 30 16 - Fuse 16 on fuse holder C -SC16- 10 A - Climatronic control unit -J255- 30 17 - Fuse 17 on fuse holder C -SC17- 5 A - Tyre pressure monitor control unit -J502-7) Tyre pressure monitor control unit 2 -J793- Selector lever sensors control unit -J587-15) 30 18 - Vacant       19 - Vacant       20 - Vacant       21 - Fuse 21 on fuse holder C -SC21- 10 A - Injectors -N....-1) 15 22 - Fuse 22 on fuse holder C -SC22- 30 A - Cabrio windbreak control unit -J531-9) 30 23 - Fuse 23 on fuse holder C -SC23- 20 A - High tone horn -H2- Low tone horn -H7- 30 24 - Fuse 24 on fuse holder C -SC24- 15 A 30 A15) - Mechatronic unit for dual clutch gearbox -J743- 30 25 - Fuse 25 on fuse holder C -SC25- 30 A 20 A9) - Heated rear window -Z1- 30 26 - Fuse 26 on fuse holder C -SC26- 30 A - Driver side window regulator motor -V147- 30 27 - Fuse 27 on fuse holder C -SC27- 30 A - Front passenger side window regulator motor -V148- 30 28 - Vacant       29 - Fuse 29 on fuse holder C -SC29- 15 A - Washer pump -V5- 15 30 - Fuse 30 on fuse holder C -SC30- 20 A - Cigarette lighter -U1-10) 12-V plug socket -U5-7) 10) 15 31   Fuse 31 on fuse holder C -SC31- 40 A - Starter -B- Terminal 50 voltage supply relay -J682- 15 32   Fuse 32 on fuse holder C -SC32- 5 A - Steering column electronics control unit -J527- 30 33   Fuse 33 on fuse holder C -SC33- 5 A - Control unit in dash panel insert -J285- 30 34   Fuse 34 on fuse holder C -SC34- 15 A 20 A8) - Navigation system with CD drive control unit -J401- Radio -R- Control unit with display for radio and navigation -J503- 30 35   Fuse 35 on fuse holder C -SC35- 30 A - Digital sound package control unit -J525- 30 36   Fuse 36 on fuse holder C -SC36- 10 A - Engine control unit -J623- Motronic current supply relay -J271- Terminal 30 voltage supply relay -J317-4) Fuel pump relay -J17-16) 30 37 - Fuse 37 on fuse holder C -SC37- 5 A - Data bus diagnostic interface -J533- 30 38 - Fuse 38 on fuse holder C -SC38- 20 A - Relay for power sockets -J807-11) Cigarette lighter -U1-11) 12-V plug socket -U5-7) 11) 30 39 - Vacant       40 - Vacant       41 - Vacant       42 - Vacant       43 - Vacant       44 - Vacant       45 - Vacant       46 - Vacant       47 - Fuse 47 on fuse holder C -SC47- 5 A - Satellite radio -R146-7) Telephone transmitter and receiver unit -R36- Aerial amplifier for mobile telephone -R86- 30       7.5 A - TV tuner -R78- Preparation for mobile telephone 30 48 - Fuse 48 on fuse holder C -SC48- 5 A - Preparation for mobile telephone 15 49 - Vacant         Note t  1) engine codes BUB, CBRA only t  2) engine codes CDLB, CDLA only t  3) engine codes BWA, BPY, CDMA, CDLA, CDLB only t  4) engine codes CBBB, CFGB t  5) for manual headlight range control t  6) for automatic headlight range control t  7) for models with US equipment only t  8) for models with Japan equipment only t  9) Roadster t  10) up to May 2007 t  11) from June 2007 t  12) up to May 2009 t  13) from June 2009 t  14) for models with DQ500 7-speed dual clutch gearbox OBH (S tronic) only t  15) for models with DQ200 7-speed dual clutch gearbox OAM (S tronic) only t  16) engine codes CEPA, CEPB, CRRA only Back to overview . AUDI TT 2012 Fuses (SF) on fuse holder F Unlock Lifetime Access for This Car. A -  Vacant B -  Vacant C -  Vacant 1 -  Fuse holder F q   Position of fuses Back to overview .     . AUDI TT 2012 Fuses (SD) on main fuse carrier Fuses (SD) on main fuse carrier     In luggage compartment, on the battery -A--1- .   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. A -  Connection battery positive 1 -  Fuse 1 on fuse holder D -SD1-, 40 A, to ABS hydraulic pump -V64- 3 -  Fuse 3 on fuse holder D -SD3-, 110 A, to fuse holder C Back to overview . AUDI TT 2012 Fuses on relay carrier behind dash panel Fuses on relay carrier behind dash panel     Left-hand drive: at left of dash panel -2-. 1 -  fuse holder C 2 -  Relay carrier behind left of dash panel 3 -  onboard supply control unit -J519- 4 -  Relay carrier on onboard supply control unit -J519-, from June 2009 Position of fuses, left-hand drive   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. A -  Vacant B -  Vacant C -  Driver seat adjustment thermal fuse 1 -S44-, 20 A D -  Vacant Right-hand drive: at right behind dash panel -1-. 1 -  Relay carrier behind right of dash panel 2 -  fuse holder C 3 -  onboard supply control unit -J519- 4 -  Relay carrier on onboard supply control unit -J519- from June 2009 Position of fuses, right-hand drive   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. A -  Vacant B -  Vacant C -  Driver seat adjustment thermal fuse 1 -S44-, 20 A D -  Vacant Back to overview . AUDI TT 2012 Slave start socket U6 Slave start socket -U6- Location: in rear left of engine compartment.     Unlock Lifetime Access for This Car. 1 -  Slave start socket -U6- (positive) 2 -  Cable to fuse holder A in electronics box, engine compartment 3 -  Cable to main fuse carrier on the battery -A- Back to overview .     AUDI TT 2012 Left number plate light -X4-/Right number plate light -X5- Routing rear lid/roof Unlock Lifetime Access for This Car. 1 -  Aerial wires to right A-pillar 2 -  Coupling station right rear lid, in rear right roof frame 3 -  Transition rear lid to luggage compartment 5 -  Radio, telephone and navigation system aerial -R52- 8 -  Aerial amplifier 2 -R111- on rear lid bottom right Left number plate light -X4-/Right number plate light -X5- 10 -  Aerial connections aerial amplifier for mobile telephone -R86- Aerial connectionssatellite radio -R146-, only USA 11 -  Coupling station left rear lid behind side panel 12 -  Transition rear lid to luggage compartment 13 -  Wiring harness to left A-pillar 14 -  Front interior light -W1- 15 -  Sun blind, right illuminated vanity mirror Routing door Unlock Lifetime Access for This Car. Door coupling - A-pillar 20-pin connector -T20a-/20-pin connector -T20b- Front left mid-range loudspeaker -R103-/front right mid-range loudspeaker -R104- Driver side interior locking button for central locking system -E308-/front passenger side interior locking button -E309- Mirror adjustment switch -E43-/mirror adjustment changeover switch -E48- Operating unit for window regulator in driver door -E512-/window regulator switch in front passenger door -E107- Alarm system off switch -E217-/interior monitoring switch -E183- Driver side central locking lock unit -F220-/Rear left central locking lock unit -F222- Side airbag crash sensor on driver side -G179-/side airbag crash sensor on front passenger side -G180- 9 -  Driver door control unit -J386-/front passenger side door control unit -J387- 10 -  Driver door control unit -J386-/front passenger side door control unit -J387- Fuel tank flap release button -E319-/rear lid remote release button -E233- Front left bass loudspeaker -R21-/front right bass loudspeaker -R23- Routing dash panel wiring harness Unlock Lifetime Access for This Car. 1 -  Wiring harness to A-pillar, left roof 5 -  Photosensor for sunlight intensity -G107- 7 -  9 -  CD changer -R41- 17 -  Chip card reader unit -R99- 24 -  Light switches -E1- 25 -  Wiring harness from A-pillar to luggage compartment, left 26 -  CAN bus connection 27 -  Coupling driver door 20-pin connector -T20a- 28 -  Left A-pillar duct 29 -  Fuse holder on left in dash panel 30 -  Wiring harness, duct interior - engine compartment Routing in the interior Unlock Lifetime Access for This Car. 1 -  Wiring harness to right A-pillar 2 -  Coupling station under front passenger seat 3 -  Electronically controlled damping control unit -J250- 7 -  Rear right mid-range and bass loudspeaker -R160- 8 -  Wiring harness to rear light, control unit in luggage compartment right 9 -  Earth wire battery -A- 10 -  Wiring harness under rear seat 11 -  Cable from battery isolation igniter -N253- in luggage compartment to starter -B- 12 -  Connections right tail light and right in luggage compartment control units 13 -  battery -A- with main fuse box and battery isolation igniter -N253- in luggage compartment, rear right 14 -  Wiring harness to digital sound package control unit -J525- and left tail light 21 -  Centre loudspeaker -R148- Plenum chamber - engine compartment wiring harness routing Unlock Lifetime Access for This Car. 5 -  Alarm horn -H12- 6 -  Engine control unit -J623- 7 -  Wiring harness to clutch Lambda probe 8 -  Coupling Lambda probes on underbody 9 -  Starter cable under vehicle floor 10 -  Wiring harness in plenum chamber from engine control unit -J623- 11 -  Duct to dash panel left 12 -  Transition to dash panel left 13 -  Cable channel in left engine compartment 14 -  Electronics box engine compartment 15 -  Engine prewiring 16 -  Wiring harness engine compartment left to headlight Front airbag crash sensor -G190-/front airbag crash sensor on driver side -G283-/front airbag crash sensor on front passenger side -G284-, only USA 18 -  Low tone horn -H7- AUDI TT 2012 Overview of coupling stations and connectors Overview of coupling stations and connectors Unlock Lifetime Access for This Car. Coupling station under right front seat q   Connectors-T10i-, -T3d-, -T6e-, -T10g- q   Location Coupling station on right of rear lid, in rear right roof frame q   Connectors-T2f-, -T2e-, -T2d-, -T2c- q   Location Coupling station on left of rear lid, Roadster q   Connectors-T6f-, -T8e- q   Location 6 -  Coupling station on left of rear lid, behind side panel, Coupé q   Connectors-T6f-, -T8e- q   Location Coupling station under left front seat q   Connectors-T10f-, -T10h-, -T3c-, -T6d- q   Location AUDI TT 2012 Coupling station under left front seat Coupling station under left front seat Fitting location Under front left seat     Connectors: 1 -  Telephone transmitter and receiver unit -R36- 2 -  10-pin connector -T10f-, red 3 -  10-pin connector -T10h-, black 4 -  3-pin connector -T3c-, yellow 5 -  6-pin, connector -T6d-, green Back to overview . AUDI TT 2012 Coupling station under right front seat Coupling station under right front seat Fitting location Under front right seat.   Unlock Lifetime Access for This Car. Connectors: 1 -  10-pin connector -T10i-, black 2 -  3-pin connector -T3d-, yellow 3 -  6-pin, connector -T6e-, green 4 -  10-pin connector -T10g-, red 5 -  Electronically controlled damping control unit -J250- Back to overview . AUDI TT 2012 Coupling station right rear lid, in rear right roof frame Coupling station right rear lid, in rear right roof frame Fitting location Behind the roof trim, upper right.   Unlock Lifetime Access for This Car. Connectors: 1 -  2-pin connector -T2f-, blue, GPS 2 -  2-pin connector -T2e-, yellow, ZF/HF2 3 -  2-pin connector -T2d-, white, HF1 4 -  2-pin connector -T2c-, black, DAB Back to overview . AUDI TT 2012 Coupling station on left of rear lid, Roadster Coupling station on left of rear lid, Roadster Fitting location behind side trim on left.   Unlock Lifetime Access for This Car. Connectors: 1 -  8-pin connector -T8e-, brown 2 -  6-pin, connector -T6f-, black Back to overview . AUDI TT 2012 Coupling station on left of rear lid, behind side panel, CoupГ© Coupling station on left of rear lid, behind side panel, Coupé Fitting location behind side trim on left.   Unlock Lifetime Access for This Car. Connectors: 1 -  662 Earth point, rear left side panel 2 -  6-pin, connector -T6f-, black 3 -  Window aerial suppression filter -C18- 4 -  Rear left mid-range and bass loudspeaker -R159- 5 -  8-pin connector -T8e-, brown Back to overview . AUDI TT 2012 Coupling station left in engine compartment Coupling station left in engine compartment Fitting location in engine compartment, at front of left longitudinal member. Connector   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. A -  14-pin connector -T14-, black Back to overview . AUDI TT 2012 Coupling station on right of dash panel, glove compartment Coupling station on right of dash panel, glove compartment Fitting location Behind glove compartment at right. Connector     Unlock Lifetime Access for This Car. A -  8-pin connector -T8k-, black Back to overview . AUDI TT 2012 Coupling station in left side panel, Roadster Coupling station in left side panel, Roadster Fitting location behind left luggage compartment side trim. Connector     Unlock Lifetime Access for This Car. A -  10-pin connector -T10c-, black Back to overview . AUDI TT 2012 Diagnostic connection Diagnostic connection Fitting location under the shelf on the driver's side Connector     Unlock Lifetime Access for This Car. A -  16-pin connector -T16-, black Back to overview .     Can't find your car? Check -> DiagnostData.com! 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