AUDI TT 2015 – Automatic air conditioning system, (9AK) . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI TT 2015 - Terminal 15 voltage supply relay - Fuse holder C

A	Battery
J329	Terminal 15 voltage supply relay
S133	Fuse 3
SC	Fuse holder C
SC7	Fuse 7 on fuse holder C
SC14	Fuse 14 on fuse holder C
SC34	Fuse 34 on fuse holder C
SC35	Fuse 35 on fuse holder C
367	Earth connection 2, in main wiring harness
B278	Positive connection 2 (15a) in main wiring harness
B281	Positive connection 5 (15a) in main wiring harness
B316	Positive connection 2 (30a) in main wiring harness
*	see applicable current flow diagram for fuse assignment

Wiring Diagram AUDI TT 2015 - Climatronic control unit - Data bus diagnostic interface - Air conditioner compressor regulating valve

J255	Climatronic control unit
J533	Data bus diagnostic interface
N280	Air conditioner compressor regulating valve
T2ct	2-pin connector
T8m	8-pin connector
T8mx	8-pin connector
T10o	10-pin connector
T10ox	10-pin connector
T17e	17-pin connector, red
T17ex	17-pin connector, red
T20a	20-pin connector, red
T20c	20-pin connector
TALU	Coupling point on left A-pillar, bottom
TML	Coupling point in engine compartment, left
132	Earth connection 3, in engine compartment wiring harness
363	Earth connection 8, in engine compartment wiring harness
372	Earth connection 7, in main wiring harness
B398	Connection 2 (convenience CAN bus, high), in main wiring harness
B407	Connection 2 (convenience CAN bus, low), in main wiring harness
*	From June 2015

Wiring Diagram AUDI TT 2015 - Pressure sender for refrigerant circuit - Fresh air blower control unit - Climatronic control unit - Fresh air blower

G805	Pressure sender for refrigerant circuit
J126	Fresh air blower control unit
J255	Climatronic control unit
T2cq	2-pin connector
T2cr	2-pin connector
T3ag	3-pin connector
T4ad	4-pin connector
T17e	17-pin connector, red
T17ex	17-pin connector, red
T20c	20-pin connector
TALU	Coupling point on left A-pillar, bottom
V2	Fresh air blower
201	Earth connection 5, in engine compartment wiring harness
B699	Connection 4 (LIN bus) in main wiring harness
D106	Connection 4 in engine compartment wiring harness
D108	Connection 6 in engine compartment wiring harness
*	According to equipment

Wiring Diagram AUDI TT 2015 - Air quality sensor - Climatronic control unit

G238	Air quality sensor
G657	Humidity sender in fresh air intake duct
J255	Climatronic control unit
T3ah	3-pin connector
T17b	17-pin connector
T17dx	17-pin connector
TALU	Coupling point on left A-pillar, bottom
201	Earth connection 5, in engine compartment wiring harness
209	Earth connection 6, in engine compartment wiring harness
D52	Positive connection (15a), in engine compartment wiring harness

Wiring Diagram AUDI TT 2015 - Sunlight penetration photosensor - Sunlight penetration photosensor 2 - Left vent temperature sender - Right vent temperature sender - Climatronic control unit

G107	Sunlight penetration photosensor
G134	Sunlight penetration photosensor 2
G150	Left vent temperature sender
G151	Right vent temperature sender
J255	Climatronic control unit
T2cs	2-pin connector
T4ae	4-pin connector
T20c	20-pin connector
377	Earth connection 12, in main wiring harness
B369	Connection 1 (5V), in main wiring harness
*	Only right-hand drive models

Wiring Diagram AUDI TT 2015 - Potentiometer for front right defroster and chest vent shut-off flap control motor - Potentiometer for front left defroster and chest vent shut-off flap control motor - Climatronic control unit - Control motor for left side window defroster flap - Control motor for right side window defroster flap

G317	Potentiometer for front right defroster and chest vent shut-off flap control motor
G318	Potentiometer for front left defroster and chest vent shut-off flap control motor
J255	Climatronic control unit
T6u	6-pin connector
T6v	6-pin connector
T12d	12-pin connector
T20c	20-pin connector
V409	Control motor for left side window defroster flap
V410	Control motor for right side window defroster flap
377	Earth connection 12, in main wiring harness
B369	Connection 1 (5V), in main wiring harness

Wiring Diagram AUDI TT 2015 - Heated rear window button - Defroster button - Climatronic control unit

E230	Heated rear window button
E782	Defroster button
G56	Dash panel temperature sensor
J255	Climatronic control unit
J519	Onboard supply control unit
K10	Heated rear window warning lamp
K285	Defroster warning lamp
T4af	4-pin connector
T4ag	4-pin connector
T4e	4-pin connector
T12d	12-pin connector
T73a	73-pin connector, black
T73c	73-pin connector
378	Earth connection 13, in main wiring harness
B731	Connection 1 (58s), in main wiring harness

Wiring Diagram AUDI TT 2015 - Operating and display unit 2 for air conditioning system - Operating and display unit 3 for air conditioning system - Operating and display unit 4 for air conditioning system - Climatronic control unit

E775	Operating and display unit 2 for air conditioning system
E776	Operating and display unit 3 for air conditioning system
E777	Operating and display unit 4 for air conditioning system
J255	Climatronic control unit
T4ah	4-pin connector
T4ai	4-pin connector
T4ak	4-pin connector
T20c	20-pin connector
379	Earth connection 14, in main wiring harness
B469	Connection 5, in main wiring harness
B710	Connection 5 (LIN bus) in main wiring harness

Wiring Diagram AUDI TT 2015 - Operating and display unit 1 for air conditioning system - Operating and display unit 5 for air conditioning system - Climatronic control unit

E774	Operating and display unit 1 for air conditioning system
E778	Operating and display unit 5 for air conditioning system
J255	Climatronic control unit
T4al	4-pin connector
T4am	4-pin connector
379	Earth connection 14, in main wiring harness
B469	Connection 5, in main wiring harness
B710	Connection 5 (LIN bus) in main wiring harness
*	Only models with seat heating

Wiring Diagram AUDI TT 2015 - Potentiometer for front air distribution flap control motor - Potentiometer for fresh air/air recirculation - air flow flap control motor - Climatronic control unit - Fresh air/air recirculation - air flow flap control motor - Front air distribution flap control motor

G642	Potentiometer for front air distribution flap control motor
G644	Potentiometer for fresh air/air recirculation, air flow flap control motor
J255	Climatronic control unit
T6aa	6-pin connector, blue
T6ab	6-pin connector, blue
T16d	16-pin connector
T16e	16-pin connector, black, on Climatronic control unit
V425	Fresh air/air recirculation, air flow flap control motor
V426	Front air distribution flap control motor
97	Earth connection 1, in air conditioning system wiring harness
L2	Connection in air conditioning system wiring harness

Wiring Diagram AUDI TT 2015 - Potentiometer for left temperature flap control motor - Potentiometer for right temperature flap control motor - Climatronic control unit - Left temperature flap control motor - Right temperature flap control motor

G220	Potentiometer for left temperature flap control motor
G221	Potentiometer for right temperature flap control motor
J255	Climatronic control unit
T6ac	6-pin connector, blue
T6ad	6-pin connector, blue
T16d	16-pin connector
T16e	16-pin connector, black, on Climatronic control unit
V158	Left temperature flap control motor
V159	Right temperature flap control motor
97	Earth connection 1, in air conditioning system wiring harness
L2	Connection in air conditioning system wiring harness

Wiring Diagram AUDI TT 2015 - Potentiometer for defroster flap control motor - Footwell vent temperature sender - Evaporator output temperature sender - Climatronic control unit - Defroster flap control motor

G135	Potentiometer for defroster flap control motor
G192	Footwell vent temperature sender
G263	Evaporator output temperature sender
J255	Climatronic control unit
T2cu	2-pin connector
T2cv	2-pin connector
T6ae	6-pin connector
T16d	16-pin connector
T16e	16-pin connector, black, on Climatronic control unit
V107	Defroster flap control motor
97	Earth connection 1, in air conditioning system wiring harness
L2	Connection in air conditioning system wiring harness

AUDI TT 2015 Overview of relay carriers

Overview of relay carriers

Relay and fuse carrier 4 -SR4-

t	Heated rear window relay -J9-

q	Fitting location and relay slot assignment, coupé

q	Fitting location and relay slot assignment, roadster

Relay and fuse carrier 2 -SR2-

t	Relay for reducing agent metering system -J963-

t	Terminal 15 voltage supply relay -J329-

t	Relay for power sockets -J807-

q	Fitting location and relay slot assignment, left-hand drive models

q	Fitting location and relay slot assignment, right-hand drive models

Relay and fuse carrier 3 -SR3-

t	Relay for neck heating -J989-

q	roadster only

q	Fitting location and relay slot assignment, left-hand drive models

q	Fitting location and relay slot assignment, right-hand drive models

AUDI TT 2015

Fitting location and relay slot assignment, relay and fuse carrier 1 -SR1- , on electronics box in engine compartment

1 -	Relay and fuse carrier 1 -SR1-

R1 -	Starter relay 1 -J906-

R2 -	Starter relay 2 -J907-

R3 -	Horn relay -J413-

R4 -	High heat output relay -J360- , diesel engine only

R4 -	Secondary air pump relay -J299- , petrol engine only

R5 -	Main relay -J271-

R6 -	Automatic glow period control unit -J179- , diesel engine only

R7 -	Low heat output relay -J359- , diesel engine only

R8 -	not assigned

R9 -	not assigned

R10 -

Engine component current supply relay 2 -J976-

Back to overview .

AUDI TT 2015

Relay and fuse carrier 2 -SR2- , under dash panel, left

Fitting location and relay slot assignment, relay and fuse carrier 2 -SR2- , left-hand drive models

1 -	Relay and fuse carrier 2 -SR2-

R1 -	Relay for reducing agent metering system -J963-

R2 -	not assigned

R3 -	not assigned

R4 -	Terminal 15 voltage supply relay -J329-

R5 -	not assigned

R6 -	Relay for power sockets -J807-

Back to overview .

Fitting location and relay slot assignment, relay and fuse carrier 2 -SR2- , right-hand drive models

1 -	Relay and fuse carrier 2 -SR2-

R1 -	Relay for reducing agent metering system -J963-

R2 -	not assigned

R3 -	not assigned

R4 -	Terminal 15 voltage supply relay -J329-

R5 -	not assigned

R6 -	Relay for power sockets -J807-

Back to overview .

Fitting location and relay slot assignment, relay and fuse carrier 3 -SR3- , under dash panel, left

Fitting location and relay slot assignment, relay and fuse carrier 3 -SR3- , left-hand drive models

1 -	Relay and fuse carrier 3 -SR3-

R1 -	Relay for neck heating -J989-

q	roadster only

Back to overview .

Fitting location and relay slot assignment, relay and fuse carrier 3 -SR3- , right-hand drive models

1 -	Relay and fuse carrier 3 -SR3-

R1 -	Relay for neck heating -J989-

q	roadster only

Back to overview .

AUDI TT 2015

Fitting location and relay slot assignment, relay and fuse carrier 4 -SR4- , on left in luggage compartment

1 -  Relay and fuse carrier 4 -SR4- R1 -  Heated rear window relay -J9- Back to overview .     Fitting location and relay slot assignment, relay and fuse carrier 4 -SR4- , roadster Unlock Lifetime Access for This Car. 1 -  Relay and fuse carrier 4 -SR4- R1 -  Heated rear window relay -J9- Back to overview .     AUDI TT 2015 Overview of fuses

Overview of fuses

Jump start connection -TV32- /wiring junction -TV1-

q	Fitting location

Relay and fuse carrier 4 -SR4-

t	Fuse holder D -SD-

t	Fuse holder F -SF-

q	Fitting location

q	Fuse assignment on fuse holder D -SD-

q	Fuse assignment on fuse holder F -SF-

q	Fitting location, right-hand drive models

q	Fuse assignment on fuse holder C -SC-

q	Fitting location and fuse assignment, right-hand drive models

q	Fuse assignment on fuse holder B -SB-

q	Fuse assignment

AUDI TT 2015 Fitting location, fuse holder A SA

Fitting location, fuse holder A -SA-

1 -	Fuse holder A -SA-

q	Fuse assignment

508	Threaded connection (30) on electronics box, B1

Back to overview .

AUDI TT 2015 Fuse assignment on fuse holder A SA

Fuse assignment on fuse holder A -SA-

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
J1A	-	Fuse 1 on fuse holder A -SA1-	125 A	-	not assigned	30
G1A	-	Fuse 2 on fuse holder A -SA2-	400 A	-	Alternator -C-	30
E1A	-	Fuse 3 on fuse holder A -SA3-	80 A	-	Power steering control unit -J500-	30
K2A	-	Fuse 4 on fuse holder A -SA4-	80 A	-	not assigned	30
L1A	-	Fuse 5 on fuse holder A -SA5-	50 A	-	Radiator fan control unit -J293-	30

Back to overview .

AUDI TT 2015 Fitting location, relay and fuse carrier 1 SR1

Fitting location, relay and fuse carrier 1 -SR1-

1 -	Fuse holder B -SB-

q	Fuse assignment

Fuse colours, J-Case fuse

t	50 A - red

t	40 A - green

t	30 A - pink

Fuse colours, ATO flat fuse

t	40 A - orange

t	30 A - light green

t	25 A - clear

t	20 A - yellow

t	15 A - light blue

t	10 A - red

t	7.5 A - brown

t	5 A - light brown

t	1 A - black

Back to overview .

AUDI TT 2015 Fuse assignment on fuse holder B SB

Fuse assignment on fuse holder B -SB-

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	not assigned		-
2	-	not assigned		-
3	-	Fuse 3 on fuse holder B -SB3-	5 A	-	Engine control unit -J623-	30
4	-	Fuse 4 on fuse holder B -SB4-	10 A1) 3) 4) 5 A2)	-	Oil level and oil temperature sender -G266- Radiator fan control unit -J293- Charge pressure control solenoid valve -N75-2) Low heat output relay -J359-2) High heat output relay -J360-2) Turbocharger air recirculation valve -N249-1) 3) 4) Intake manifold flap valve -N316-1) 3) 4) Valve for oil pressure control -N428-1) 3) 4) Piston cooling jet control valve -N522-1) 3) 4) Secondary air pump relay -J299-1) 3)	87
5	-	Fuse 5 on fuse holder B -SB5-	10 A	-	Fuel pressure regulating valve -N276-2) Fuel metering valve -N290-2) Camshaft control valve 1 -N205-2) Engine component current supply relay 2 -J976-1) 3) 4) Injector for cylinder -N532- … -N535-1) 3) 4) Actuator for camshaft adjustment -F366- … -F373-1) 3) 4)	87
6	-	Fuse 6 on fuse holder B -SB6-	5 A	-	Brake light switch -F- /brake pedal switch -F63-	87
7	-	Fuse 7 on fuse holder B -SB7-	7.5 A1) 3) 4) 10 A2)	-	Coolant shut-off valve -N82-1) 3) 4) Coolant valve for gearbox -N488-1) 3) 4) 5) Coolant circulation pump -V50-1) 3) 4) Valve for oil pressure control -N428-2) Coolant valve for cylinder head -N489-2) Charge air cooling pump -V188-2) Auxiliary pump for heating -V488-2)	87
8	-	Fuse 8 on fuse holder B -SB8-	15 A1) 3) 4) 10 A2)	-	Lambda probe heater -Z19- Lambda probe 1 heater after catalytic converter -Z29-	87
9	-	Fuse 9 on fuse holder B -SB9-	10 A1) 3) 4) 5 A2)	-	Air mass meter -G70-2) Heater element for crankcase breather -N79-2) Automatic glow period control unit -J179-2) Continued coolant circulation pump -V51-1) 3) 4) Activated charcoal filter solenoid valve 1 -N80-1) 3) 4) Camshaft control valve 1 -N205-1) 3) 4) Exhaust camshaft control valve 1 -N318-1) 3) 4) Exhaust flap control unit -J883-1) 3) Exhaust flap control unit 2 -J945-1) 3)	87
10	-	Fuse 10 on fuse holder B -SB10-	15 A1) 3) 4) 20 A2)	-	Fuel pump control unit -J538-	87
11	-	Fuse 11 on fuse holder B -SB11-	40 A2) 50 A1) 3)	-	Auxiliary air heater element -Z35-2) Secondary air pump motor -V101-1) 3)	87
12	-	Fuse 12 on fuse holder B -SB12-	40 A2)	-	Auxiliary air heater element -Z35-2)	87
13	-	Fuse 13 on fuse holder B -SB13-	15 A	-	Mechatronic unit for dual clutch gearbox -J743-	30
14	-	not assigned		-
15	-	Fuse 15 on fuse holder B -SB15-	15 A	-	Horn relay -J413- Treble horn -H2- Bass horn -H7-	30
16	-	Fuse 16 on fuse holder B -SB16-	20 A	-	Engine component current supply relay 2 -J976-1) 3) 4)	30
17	-	Fuse 17 on fuse holder B -SB17-	10 A	-	Suppression filter -C24-	30
18	-	Fuse 18 on fuse holder B -SB18-	5 A	-	Garage door operation control unit -J530-	30
19	-	Fuse 19 on fuse holder B -SB19-	30 A	-	Wiper motor control unit -J400-	30
20	-	Fuse 20 on fuse holder B -SB20-	10 A	-	Alarm horn -H12-	30
21	-	not assigned		-
22	-	Fuse 22 on fuse holder B -SB22-	5 A	-	Engine control unit -J623-	50
23	-	Fuse 23 on fuse holder B -SB23-	30 A	-	Starter -B-	50
24	-	Fuse 24 on fuse holder B -SB24-	40 A2)	-	Auxiliary air heater element -Z35-2)	87
25	-	not assigned		-
26	-	not assigned		-
27	-	not assigned		-
28	-	not assigned		-
29	-	not assigned		-
30	-	not assigned		-
31	-	not assigned		-
32	-	not assigned		-
33	-	not assigned		-
34	-	not assigned		-
35	-	not assigned		-
36	-	not assigned		-
37	-	not assigned		-
38	-	not assigned		-

t	1) models with engine code CHHC, CNTC only

t	2) models with engine code CUNA only

t	3) models with engine code CJXF, CJXG, CYFB only

t	4) models with engine code CJSA only

t	5) models with all-wheel drive only

Back to overview .

AUDI TT 2015 Fitting location, relay and fuse carrier 2 SR2

Fitting location, relay and fuse carrier 2 -SR2-

Fitting location, relay and fuse carrier 2 -SR2- , left-hand drive models

1 -	Fuse holder C -SC-

q	Fuse assignment

Fuse colours, J-Case fuse

t	50 A - red

t	40 A - green

t	30 A - pink

Fuse colours, ATO flat fuse

t	40 A - orange

t	30 A - light green

t	25 A - clear

t	20 A - yellow

t	15 A - light blue

t	10 A - red

t	7.5 A - brown

t	5 A - light brown

t	1 A - black

Back to overview .

Fitting location, relay and fuse carrier 2 -SR2- , right-hand drive models

1 -	Fuse holder C -SC-

q	Fuse assignment

Fuse colours, J-Case fuse

t	50 A - red

t	40 A - green

t	30 A - pink

Fuse colours, ATO flat fuse

t	40 A - orange

t	30 A - light green

t	25 A - clear

t	20 A - yellow

t	15 A - light blue

t	10 A - red

t	7.5 A - brown

t	5 A - light brown

t	1 A - black

Back to overview .

Fuse assignment, fuse holder C -SC-

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	Fuse 1 on fuse holder C -SC1-	30 A	-	Control unit for reducing agent metering system -J880-	30
2	-	not assigned		-
3	-	Fuse 3 on fuse holder C -SC3-	40 A	-	ABS control unit -J104-	30
4	-	Fuse 4 on fuse holder C -SC4-	7.5 A	-	Control unit 1 for information electronics -J794- Multimedia system operating unit -E380-	30
5	-	Fuse 5 on fuse holder C -SC5-	5 A	-	Data bus diagnostic interface -J533-	30
6	-	Fuse 6 on fuse holder C -SC6-	5 A	-	Selector lever sensors control unit -J587- Anti-theft alarm sensor -G578-	30
7	-	Fuse 7 on fuse holder C -SC7-	10 A	-	Climatronic control unit -J255- Heated rear window relay -J9- Tyre Pressure Monitoring System control unit -J502-	30
8	-	Fuse 8 on fuse holder C -SC8-	10 A	-	Light switch -E1- Electromechanical parking brake button -E538- Diagnostic connection -U31- Roof electronics control unit -J528- Light and rain sensor -G397-	30
9	-	Fuse 9 on fuse holder C -SC9-	1 A	-	Steering column electronics control unit -J527-	30
10	-	not assigned		-
11	-	Fuse 11 on fuse holder C -SC11-	15 A	-	All-wheel drive control unit -J492-	30
12	-	Fuse 12 on fuse holder C -SC12-	20 A 30 A	-	Control unit 1 for information electronics -J794- Digital sound package control unit -J525-	30
13	-	Fuse 13 on fuse holder C -SC13-	20 A	-	Electronically controlled damping control unit -J250-	30
14	-	Fuse 14 on fuse holder C -SC14-	30 A	-	Fresh air blower control unit -J126-	30
15	-	Fuse 15 on fuse holder C -SC15-	10 A	-	Control unit for electronic steering column lock -J764-	30
16	-	Fuse 16 on fuse holder C -SC16-	7.5 A	-	TV tuner -R78- Aerial amplifier for mobile telephone -R86- Telephone bracket -R126- Chip card reader control unit -J676-	30
17	-	Fuse 17 on fuse holder C -SC17-	10 A	-	Control unit in dash panel insert -J285-	30
18	-	Fuse 18 on fuse holder C -SC18-	7.5 A	-	Interface control unit for vehicle location system -J843- Reversing camera system control unit -J772-	30
19	-	Fuse 19 on fuse holder C -SC19-	7.5 A	-	Entry and start authorisation control unit -J518-	30
20	-	Fuse 20 on fuse holder C -SC20-	10 A	-	Front left seat Front right seat	30
21	-	not assigned		-
22	-	Fuse 22 on fuse holder C -SC22-	5 A	-	Control unit for right neck heating -J847-1)	30
23	-	Fuse 23 on fuse holder C -SC23-	40 A	-	Onboard supply control unit -J519-	30
24	-			-
25	-	Fuse 25 on fuse holder C -SC25-	30 A	-	Driver door control unit -J386-	30
26	-	Fuse 26 on fuse holder C -SC26-	30 A	-	Onboard supply control unit -J519-	30
27	-	not assigned		-
28	-	Fuse 28 on fuse holder C -SC28-	5 A	-	Connection for external audio sources -R199-	30
29	-	Fuse 29 on fuse holder C -SC29-	7.5 A	-	Glove compartment light switch -E26- Driver vanity mirror contact switch -F147- Front passenger vanity mirror contact switch -F148- Roof electronics control unit -J528- Front roof module -WX3-	30
30	-	not assigned		-
31	-	Fuse 31 on fuse holder C -SC31-	40 A	-	Onboard supply control unit -J519-	30
32	-	Fuse 32 on fuse holder C -SC32-	7.5 A	-	Lane change assist control unit -J769- Lane change assist control unit 2 -J770- Parking aid control unit -J446- Park assist steering control unit -J791- Front camera for driver assist systems -R242-	15
33	-	Fuse 33 on fuse holder C -SC33-	5 A	-	Airbag control unit -J234- Roof electronics control unit -J528- Seat occupied recognition control unit -J706-	15
34	-	Fuse 34 on fuse holder C -SC34-	7.5 A	-	Electromechanical parking brake button -E538- Auto-hold button -E540- Reversing light switch -F4- Pressure sender for refrigerant circuit -G805- Garage door operation control unit -J530- Relay for power sockets -J807- Relay for neck heating -J989-1)	15
35	-	Fuse 35 on fuse holder C -SC35-	10 A	-	Operating unit in front of centre console -E461- Air quality sensor -G238- Headlight range control unit -J431- Diagnostic connection -U31- Automatic anti-dazzle interior mirror -Y7-	15
36	-	Fuse 36 on fuse holder C -SC36-	15 A	-	Front right headlight -MX2-	15
37	-	Fuse 37 on fuse holder C -SC37-	15 A	-	Front left headlight -MX1-	15
38	-	Fuse 38 on fuse holder C -SC38-	7.5 A	-	Main relay -J271- Terminal 30 voltage supply relay -J317- Engine control unit -J623- ABS control unit -J104-	30
39	-	Fuse 39 on fuse holder C -SC39-	30 A	-	Front passenger door control unit -J387-	30
40	-	Fuse 40 on fuse holder C -SC40-	20 A	-	12 V socket -U5- 12 V socket 2 -U18-	30
41	-	Fuse 41 on fuse holder C -SC41-	7.5 A	-	Control unit for fuel tank leak detection -J909-2) Relay for reducing agent metering system -J963-3)	30
42	-	Fuse 42 on fuse holder C -SC42-	40 A	-	Onboard supply control unit -J519-	30
43	-	Fuse 43 on fuse holder C -SC43-	30 A	-	Onboard supply control unit -J519-	30
44	-	not assigned		-
45	-	Fuse 45 on fuse holder C -SC45-	15 A	-	Front left seat	30
46	-	Fuse 46 on fuse holder C -SC46-	30 A	-	Control unit for left neck heating -J846-1)	30
47	-	not assigned		-
48	-	not assigned		-
49	-	Fuse 49 on fuse holder C -SC49-	5 A	-	Clutch position sender -G476- Starter relay 1 -J906- Starter relay 2 -J907-	15
50	-	Fuse 50 on fuse holder C -SC50-	40 A	-	ABS control unit -J104-	30
51	-	not assigned		-
52	-	not assigned		-
53	-	not assigned		-

1) roadster only

2) for models with US equipment only

3) for models with SCR system only

Back to overview .

AUDI TT 2015 Fitting location, relay and fuse carrier 3 SR3

Fitting location, relay and fuse carrier 3 -SR3-

Fitting location, relay and fuse carrier 3 -SR3- , left-hand drive models

1 -	Relay and fuse carrier 3 -SR3-

A -	Front passenger seat adjustment thermal fuse 1 -S46- , 15 A, light blue

B -	not assigned

Back to overview .

Fitting location, relay and fuse carrier 3 -SR3- , right-hand drive models

1 -	Relay and fuse carrier 3 -SR3-

A -	Front passenger seat adjustment thermal fuse 1 -S46- , 15 A, light blue

B -	not assigned

C -	not assigned

Back to overview .

Fitting location of main fuse carrier on the battery -A-

A -	Main fuse carrier on battery -A-

1 -	Fuse 3 -S133- , 110 A

q	to fuse holder C -SC-

2 -	Fuse 2 -S132- , 110 A

q	to fuse holder C -SC-

3 -	Connection battery monitor control unit -J367- , 2-pin connector -T2a- , yellow

4 -	Connection jump start connection -TV32- , 508 threaded connection (30) on electronics box, B1

5 -	Fuse 1 -S131- , 30 A

q	to Heated rear window relay -J9- , coupé

5 -	Fuse 1 -S131- , 30 A

q	to fuse 2 on fuse holder D -SD2- , roadster

q	to fuse 1 on fuse holder F -SF1- , roadster

q	to fuse 2 on fuse holder F -SF2- , roadster

Back to overview .

AUDI TT 2015

Fitting location, jump start connection -TV32- /wiring junction -TV1-

1 -	Jump start connection -TV32- , negative

2 -	Jump start connection -TV32- , positive/wiring junction -TV1-

q	Positive connection, from main fuse carrier on battery -A- item 4 (A1), to 508 threaded connection (30) on electronics box, B1

q	Positive connection to starter -B- , C1

Back to overview .

AUDI TT 2015 Fitting location, relay and fuse carrier 4 SR4

Fitting location, relay and fuse carrier 4 -SR4-

1 -	Relay and fuse carrier 4 -SR4-

A -	Fuse holder F -SF-

q	Fuse assignment

B -	Fuse holder D -SD-

q	Fuse assignment

Back to overview .

AUDI TT 2015 Fuse assignment on fuse holder F SF

Fuse assignment on fuse holder F -SF-

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	Fuse 1 on fuse holder F -SF1-	10 A	-	Convertible roof actuation control unit -J256-	30
2	-	Fuse 2 on fuse holder F -SF2-	20 A	-	Heated rear window relay -J9- Heated rear window -Z1-	30

Back to overview .

AUDI TT 2015 Fuse assignment on fuse holder D SD

Fuse assignment on fuse holder D -SD-

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	not assigned		-
2	-	Fuse 2 on fuse holder D -SD2-	40 A	-	Convertible roof actuation control unit -J256- Convertible roof actuation motor -V82- Convertible roof actuation motor 2 -V576-	30

Back to overview .

AUDI TT 2015 Overview of earth points

Overview of earth points

12	Earth point in engine compartment, left

q	Specified torque: 9 Nm

656	Earth point on right headlight

q	Specified torque: 9 Nm

671	Earth point 1 on front longitudinal member, left

q	Specified torque: 9 Nm

672	Earth point 2 on front longitudinal member, left

q	Specified torque: 20 Nm

685	Earth point 1 on front longitudinal member, right

q	Specified torque: 9 Nm

683	Earth point on front side member, right

q	Specified torque: 9 Nm

43	Earth point on right A-pillar, bottom

q	Specified torque: 9 Nm

639	Earth point on left A-pillar

q	Specified torque: 9 Nm

684	Earth point on front side member, left

q	Specified torque: 9 Nm

687	Earth point 1 on centre tunnel

q	Specified torque: 9 Nm

624	Earth point next to starter battery

q	Specified torque: 20 Nm

730	Earth point 1 on rear right wheel housing

q	Specified torque: 9 Nm

729	Earth point on rear left wheel housing

q	Specified torque: 9 Nm

AUDI TT 2015 Overview of control units in middle part of vehicle

Overview of control units in middle part of vehicle

q	Connector assignment

q	Connector assignment

q	Connector assignment

q	Connector assignment

-

q	Connector assignment

q	Connector assignment

q	Connector assignment

q	Connector assignment

q	Connector assignment

q	Connector assignment

q	Connector assignment

q	Connector assignment

Fuel pump control unit -J538-

q	Fitting location

q	Connector assignment

q	Connector assignment

q	Connector assignment

q	Connector assignment

q	Connector assignment

q	Connector assignment

q	Connector assignment

Parking aid control unit -J446- /park assist steering control unit -J791-

q	Fitting location

q	Connector assignment

q	Connector assignment

21 -	Headlight range control unit -J431-

q	Fitting location, left-hand drive models

q	Connector assignment

q	Connector assignment

q	Connector assignment

AUDI TT 2015 Overview of convertible roof control units, roadster

Overview of convertible roof control units, roadster

q	Connector assignment

3 -	Convertible roof actuation motor 2 -V576-

q	Fitting location

q	Connector assignment

q	Connector assignment

5 -	Convertible roof actuation motor -V82-

q	Fitting location

q	Connector assignment

6 -	Convertible roof front switch -F202-

q	Fitting location: Near convertible roof actuation motor -V82-

8 -	Control unit for seat belt microphone -J886-

q	Fitting location

q	Connector assignment

AUDI TT 2015 Fitting location, fresh air blower control unit J126 1 -  Fresh air blower control unit -J126- B -  4-pin connector -T4ad- , black AUDI TT 2015 Fitting location, airbag control unit J234 Fitting location, airbag control unit -J234- Fitting location Under front of centre console.     Unlock Lifetime Access for This Car. 1 -  Airbag control unit -J234- . AUDI TT 2015 Fitting location, electronically controlled damping control unit J250 Fitting location, electronically controlled damping control unit -J250- Fitting location Under front right seat.     Unlock Lifetime Access for This Car. 1 -  Electronically controlled damping control unit -J250- Connector assignment, electronically controlled damping control unit -J250-

-T47a- (A)	Designation		-T47a- (A)	Designation
1	Terminal 15, from B277 positive connection 1 (15a) in main wiring harness onboard supply control unit -J519-		25
2	Rear left vehicle level sender -G76-		26
3	Front right vehicle level sender -G289-		27	Front right shock absorber damping adjustment valve -N337-
4			28	Front right shock absorber damping adjustment valve -N337-
5	Rear right vehicle level sender -G77-		29
6	Front left vehicle level sender -G78-		30	Front left shock absorber damping adjustment valve -N336-
7			31	Front left shock absorber damping adjustment valve -N336-
8			32
9			33	Rear left vehicle level sender -G76-
10			34	Front right vehicle level sender -G289-
11			35	Rear right vehicle level sender -G77-
12			36	Front left vehicle level sender -G78-
13			37	Chassis/dash panel insert CAN bus, low B677 connection 2 (chassis/dash panel insert CAN bus, low) in main wiring harness data bus diagnostic interface -J533-
14			38	Chassis/dash panel insert CAN bus, high B673 connection 2 (chassis/dash panel insert CAN bus, high) in main wiring harness data bus diagnostic interface -J533-
15			39
16	Terminal 31, to 683 earth point on front side member, right		40
17	Rear left vehicle level sender -G76-		41
18	Front right vehicle level sender -G289-		42	Rear left shock absorber damping adjustment valve -N338-
19			43	Rear left shock absorber damping adjustment valve -N338-
20	Rear right vehicle level sender -G77-		44
21	Front left vehicle level sender -G78-		45	Rear right shock absorber damping adjustment valve -N339-
22			46	Rear right shock absorber damping adjustment valve -N339-
23			47	Terminal 30, from fuse holder C -SC- fuse 3 -S133-
24

Back to overview . AUDI TT 2015 Fitting location, Climatronic control unit J255 1 -  Climatronic control unit -J255- B -  16-pin connector -T16e- , brown D -  12-pin connector -T12d- , black Connector assignment, Climatronic control unit -J255-     -T16d- (A) Designation   -T16e- (B) Designation 1 Left temperature flap control motor -V158-   1 5V output, to L2 connection in air conditioning system wiring harness potentiometer for front air distribution flap control motor -G642- potentiometer for fresh air/air recirculation, air flow flap control motor -G644- potentiometer for left temperature flap control motor -G220- potentiometer for right temperature flap control motor -G221- potentiometer for defroster flap control motor -G135- 2 Left temperature flap control motor -V158-   2 Potentiometer for left temperature flap control motor -G220- 3 Defroster flap control motor -V107- 3 Potentiometer for right temperature flap control motor -G221- 4 Defroster flap control motor -V107- 4 Potentiometer for defroster flap control motor -G135- 5 Front air distribution flap control motor -V426-   5 Potentiometer for front air distribution flap control motor -G642- 6 Front air distribution flap control motor -V426- 6 7   7 Potentiometer for fresh air/air recirculation, air flow flap control motor -G644- 8   8 Footwell vent temperature sender -G192- 9 Fresh air/air recirculation, air flow flap control motor -V425-   9 10 Fresh air/air recirculation, air flow flap control motor -V425-   10 11 Right temperature flap control motor -V159-   11 Evaporator output temperature sender -G263- 12 Right temperature flap control motor -V159-   12   13     13   14     14 Earth, to 97 earth connection 1 in air conditioning system wiring harness potentiometer for front air distribution flap control motor -G642- potentiometer for fresh air/air recirculation, air flow flap control motor -G644- potentiometer for left temperature flap control motor -G220- potentiometer for right temperature flap control motor -G221- potentiometer for defroster flap control motor -G135- footwell vent temperature sender -G192- evaporator output temperature sender -G263- 15     15   16     16   -T20c- (C) Designation   -T12d- (D) Designation 1 Sunlight penetration photosensor -G107- Sunlight penetration photosensor 2 -G134-   1 Dash panel temperature sensor -G56- 2   2 Dash panel temperature sensor -G56- 3 Sunlight penetration photosensor -G107- Sunlight penetration photosensor 2 -G134-   3 Dash panel temperature sensor -G56- 4 Terminal 30, to B469 connection 5 in main wiring harness operating and display unit 2 for air conditioning system -E775- operating and display unit 3 for air conditioning system -E776- operating and display unit 4 for air conditioning system -E777- operating and display unit 1 for air conditioning system -E774- operating and display unit 5 for air conditioning system -E778-   4 Dash panel temperature sensor -G56- 5 Comfort CAN bus, high to B398 connection 2 (comfort CAN bus, high) in main wiring harness data bus diagnostic interface -J533-   5 Potentiometer for front right defroster and chest vent shut-off flap control motor -G317- 6 Comfort CAN bus, low to B407 connection 2 (comfort CAN bus, low) in main wiring harness data bus diagnostic interface -J533- 6 Potentiometer for front right defroster and chest vent shut-off flap control motor -G317- 7 Earth, to 379 earth connection 14 in main wiring harness operating and display unit 2 for air conditioning system -E775- operating and display unit 3 for air conditioning system -E776- operating and display unit 4 for air conditioning system -E777- operating and display unit 1 for air conditioning system -E774- operating and display unit 5 for air conditioning system -E778-   7 Defroster button -E782- 8   8 Defroster warning lamp -K285- 9 5V output, to B369 connection 1 (5V) in main wiring harness sunlight penetration photosensor -G107- sunlight penetration photosensor 2 -G134- control motor for right side window defroster flap -V410- control motor for right side window defroster flap -V409-   9 Heated rear window button -E230- 10 Potentiometer for front left defroster and chest vent shut-off flap control motor -G318-   10 Heated rear window warning lamp -K10- 11 Potentiometer for front left defroster and chest vent shut-off flap control motor -G318-   11 Earth, to 378 earth connection 13 in main wiring harness defroster button -E782- heated rear window button -E230- 12 Potentiometer for front left defroster and chest vent shut-off flap control motor -G318-   12 Potentiometer for front right defroster and chest vent shut-off flap control motor -G317- 13 Left vent temperature sender -G150- (LHD) Right vent temperature sender -G151- (RHD)     14         15 LIN bus, to B710 connection 5 (LIN bus) in main wiring harness operating and display unit 2 for air conditioning system -E775- operating and display unit 3 for air conditioning system -E776- operating and display unit 4 for air conditioning system -E777- operating and display unit 1 for air conditioning system -E774- operating and display unit 5 for air conditioning system -E778-       16 LIN bus, to B699 connection 4 (LIN bus) in main wiring harness fresh air blower control unit -J126- D108 connection 6 in engine compartment wiring harness pressure sender for refrigerant circuit -G805- humidity sender in fresh air intake duct -G657- , air quality sensor -G238-       17 Sensors earth, to 377 earth connection 12 in main wiring harness     18 Air conditioner compressor regulating valve -N280-     19 Terminal 31, to 372 earth connection 7 in main wiring harness 687 earth point 1 on centre tunnel       20 Terminal 30, from fuse holder C -SC- fuse 3 -S133-     Back to overview . AUDI TT 2015 Fitting location, control unit in dash panel insert J285 Fitting location, control unit in dash panel insert -J285- Fitting location In driver side dash panel. The control unit in the dash panel insert -J285- is also a display.     Unlock Lifetime Access for This Car. 1 -  Control unit in dash panel insert -J285- B -  2-pin connector -T2d- , MOST bus, black Connector assignment, control unit in dash panel insert -J285-     -T32a- (C) Designation   -T32a- (C) Designation 1 Ring break diagnosis, B444 connection 1 (diagnosis) in main wiring harness 17 2     18 3 Comfort CAN bus, low to B406 connection 1 (comfort CAN bus, low) in main wiring harness B407 connection 2 (comfort CAN bus, low) in main wiring harness data bus diagnostic interface -J533- 19 4 Comfort CAN bus, high to B397 connection 1 (comfort CAN bus, high) in main wiring harness B398 connection 2 (comfort CAN bus, high) in main wiring harness data bus diagnostic interface -J533-   20 5 Sender earth, to 410 earth connection 1 (sender earth) in main wiring harness fuel gauge sender -G- fuel level sender 2 -G169-   21 6 Fuel gauge sender -G-   22 7 Fuel gauge sender -G-   23 8 Dash panel insert operating buttons -E493-   24 9 Fuel level sender 2 -G169- 25 10 Fuel level sender 2 -G169- 26 11     27 12     28 13     29 14     30 Terminal 31, to 376 earth connection 11 in main wiring harness 370 earth connection 5 in main wiring harness 687 earth point 1 on centre tunnel 15 Immobiliser reader coil -D2- 31 16 Immobiliser reader coil -D2- 32 Terminal 30, from fuse holder C -SC- Back to overview . AUDI TT 2015 Fitting location, driver door control unit J386 1 -  Driver door control unit -J386- B -  20-pin connector -T20f- , black D -  32-pin connector -T32f- , blue Connector assignment, driver door control unit -J386-     -T6l- (A) Designation   -T6l- (A) Designation 1     4 2     5 3 Driver side window regulator motor -V147- 6 Driver side window regulator motor -V147- -T20f- (B) Designation   -T16f- (C) Designation   -T32f- (D) Designation 1 Driver door lock unit -VX21- Driver side contact switch in lock cylinder -F241-   1     1 Central locking SAFELOCK function warning lamp -K133- 2 Microswitch for lowering driver window -E621-   2 Driver side exterior mirror -VX4- Driver side automatic anti-dazzle exterior mirror -Y20-   2   3     3 Terminal 31, to Z1 connection 1 in mirror adjustment - mirror heating wiring harness driver side exterior mirror -VX4- heated exterior mirror on driver side -Z4- driver side turn signal repeater bulb -L131-   3 Driver side door interior handle illumination bulb -L146- 4     4 Terminal 31, mirror adjustment potentiometer driver side exterior mirror -VX4-   4 Terminal 58s, to R52 connection (58s) in driver side door wiring harness alarm system off switch -E217- operating unit for window regulator in driver door -E512- mirror adjustment switch -E43- driver side interior locking button for central locking system -E308- switch illumination bulb -L156- 5 Driver door lock unit -VX21- Driver door contact switch -F2- 5 Driver side exterior mirror -VX4- Driver side mirror adjustment motor -V17- Driver side mirror adjustment motor -V149-   5 Terminal 31, to 267 earth connection 2 in driver side door wiring harness 6 Driver door lock unit -VX21- Front left central locking actuator -F131-   6 Driver side exterior mirror -VX4- Driver side automatic anti-dazzle exterior mirror -Y20-   6   7 Terminal 31 CL, to driver door lock unit -VX21- driver door contact switch -F2- front left central locking actuator -F131- driver side contact switch in lock cylinder -F241- 7 Driver side exterior mirror -VX4- Driver side mirror adjustment motor -V17-   7 8 Mirror signal from B427 connection 1 (mirror signal) in main wiring harness automatic anti-dazzle interior mirror -Y7-   8 Driver side exterior mirror -VX4- Driver side mirror adjustment motor -V149-   8 R94 Connection 1 in front passenger side door wiring harness Driver door storage compartment illumination bulb -L160- Driver door ambient lighting bulb -L164- 9   9 Driver side exterior mirror -VX4- Driver side fold-in mirror motor -V121-   9   10 10 Driver side exterior mirror -VX4- Driver side fold-in mirror motor -V121-   10 Alarm system off switch -E217- 11 Driver door lock unit -VX21- Driver door central locking SAFELOCK function motor -V161- Driver door central locking motor -V56-   11 Driver side exterior mirror -VX4- Driver side turn signal repeater bulb -L131- 11 12 Driver door lock unit -VX21- Driver door central locking SAFELOCK function motor -V161-   12 12 13 Front passenger door lock unit -VX21- Driver door central locking motor -V56-   13 Driver side exterior mirror -VX4- Potentiometer for vertical adjustment of driver side mirror -G515-   13 Terminal 58d, to driver side interior locking button for central locking system -E308- 14 Comfort CAN bus, low to B407 connection 2 (comfort CAN bus, low) in main wiring harness data bus diagnostic interface -J533-   14 Supply, mirror adjustment potentiometer Driver side exterior mirror -VX4-   14 15 Comfort CAN bus, high to B398 connection 2 (comfort CAN bus, high) in main wiring harness data bus diagnostic interface -J533-   15 Driver side exterior mirror -VX4- heated exterior mirror on driver side -Z4- 15 16   16 Driver side exterior mirror -VX4- Potentiometer for horizontal adjustment of driver side mirror -G514-   16 Terminal 58, to R65 positive connection (58) in driver-side door wiring harness Driver side door warning lamp -W30- Front left entry light -W31- 17 Mirror signal from B428 connection 2 (mirror signal) in main wiring harness automatic anti-dazzle interior mirror -Y7-       17 18         18 19 Terminal 30, from fuse holder C -SC- fuse 3 -S133-     19 20 Terminal 31, to 206 earth connection in front passenger side door wiring harness 373 earth connection 8 in main wiring harness 43 earth point on right A-pillar, bottom         20 Alarm system off switch -E217- Interior monitoring switch -E183-           21 Terminal 31, to 267 earth connection 2 in driver side door wiring harness           22             23             24 Mirror adjustment switch -E43-           25 Mirror adjustment switch -E43- Adjustment switch for mirror with fold-in feature -E168- Mirror adjustment changeover switch -E48-           26             27             28 Driver side interior locking button for central locking system -E308-           29             30             31 Operating unit for window regulator in driver door -E512- Front right window regulator switch in driver door -E81-           32 Operating unit for window regulator in driver door -E512- Front right window regulator switch -E40- Back to overview . AUDI TT 2015 Fitting location, front passenger door control unit J387 1 -  Front passenger door control unit -J387- B -  20-pin connector -T20g- , black D -  32-pin connector -T32g- , blue Connector assignment, front passenger door control unit -J387-     -T6m- (A) Designation   -T6m- (A) Designation 1     4 2     5 3 Front passenger side window regulator motor -V148-   6 Front passenger side window regulator motor -V148- -T20g- (B) Designation   -T16g- (C) Designation   -T32g- (D) Designation 1     1   1 2 Microswitch for lowering front passenger window -E622-   2 Front passenger side exterior mirror -VX5- Front passenger side automatic anti-dazzle exterior mirror -Y21-   2   3     3 Terminal 31, to Z2 connection 2 in mirror adjustment - mirror heating wiring harness front passenger side exterior mirror -VX5- heated exterior mirror on front passenger side -Z5- front passenger side turn signal repeater bulb -L132-   3 Front passenger side door interior handle illumination bulb -L147- 4     4 Terminal 31, mirror adjustment potentiometer front passenger side exterior mirror -VX5-   4 Terminal 58s, to R53 connection (58s) in front passenger side door wiring harness front passenger side interior locking button for central locking system -E309- window regulator switch in front passenger door -E107- switch illumination bulb -L156- 5 Front passenger door lock unit -VX22- Front passenger door contact switch -F3-   5 Front passenger side exterior mirror -VX5- Front passenger side mirror adjustment motor -V25- Front passenger side mirror adjustment motor -V150-   5 Terminal 31, to window regulator switch in front passenger door -E107- 268 earth connection 2 in front passenger side door wiring harness 6 Front passenger door lock unit -VX22- Front right central locking actuator -F133-   6 Front passenger side exterior mirror -VX5- Front passenger side automatic anti-dazzle exterior mirror -Y21-   6   7 Terminal 31 CL, to front passenger door lock unit -VX22- front passenger door contact switch -F3- front right central locking actuator -F133-   7 Front passenger side exterior mirror -VX5- Front passenger side mirror adjustment motor -V25-   7 8 Mirror signal from B427 connection 1 (mirror signal) in main wiring harness automatic anti-dazzle interior mirror -Y7-   8 Front passenger side exterior mirror -VX5- Front passenger side mirror adjustment motor -V150-   8 R98 connection 1 in front passenger side door wiring harness front passenger door storage compartment illumination bulb -L161- front passenger door ambient lighting bulb -L165- 9   9 Front passenger side exterior mirror -VX5- Front passenger side fold-in mirror motor -V122-   9   10 10 Front passenger side exterior mirror -VX5- Front passenger side fold-in mirror motor -V122-   10   11 Front passenger door lock unit -VX22- Front passenger door central locking SAFELOCK function motor -V162- Front passenger seat central locking motor -V57-   11 Front passenger side exterior mirror -VX5- Front passenger side turn signal repeater bulb -L132-   11   12 Front passenger door lock unit -VX22- Front passenger door central locking SAFELOCK function motor -V162-   12 12 13 Front passenger door lock unit -VX22- Front passenger seat central locking motor -V57-   13 Front passenger side exterior mirror -VX5- Potentiometer for vertical adjustment of front passenger side mirror -G517-   13 Terminal 58d, to front passenger side interior locking button for central locking system -E309- 14 Comfort CAN bus, low to B407 connection 2 (comfort CAN bus, low) in main wiring harness data bus diagnostic interface -J533-   14 Supply, mirror adjustment potentiometer Front passenger side exterior mirror -VX5-   14 15 Comfort CAN bus, high to B398 connection 2 (comfort CAN bus, high) in main wiring harness data bus diagnostic interface -J533-   15 Front passenger side exterior mirror -VX5- Heated exterior mirror on front passenger side -Z5- 15 16   16 Front passenger side exterior mirror -VX5- Potentiometer for horizontal adjustment of front passenger side mirror -G516-   16 Terminal 58, to R67 positive connection (58) in front passenger side door wiring harness front right entry light -W32- front passenger side door warning lamp -W36- 17 Mirror signal from B428 connection 2 (mirror signal) in main wiring harness automatic anti-dazzle interior mirror -Y7-       17 18         18 19 Terminal 30, from fuse holder C -SC- fuse 3 -S133-     19 20 Terminal 31, to 206 earth connection in front passenger side door wiring harness 373 earth connection 8 in main wiring harness 43 earth point on right A-pillar, bottom         20             21             22             23             24             25             26             27             28             29             30             31             32 Window regulator switch in front passenger door -E107- Back to overview . AUDI TT 2015 Fitting location, headlight range control unit J431 1 -  Headlight range control unit -J431- Connector assignment, headlight range control unit -J431-     -T26b- (A) Designation   -T26b- (A) Designation 1   14 2 Extended CAN bus, high to E135 connection (extended CAN bus, high) in engine compartment wiring harness B108 connection 1 (extended CAN bus, high) in main wiring harness data bus diagnostic interface -J533-   15 Control unit for left daytime running light and side light -J860- Left headlight range control motor -V48- 3 Extended CAN bus, low to E136 connection (extended CAN bus, low) in engine compartment wiring harness B109 connection 1 (extended CAN bus, low) in main wiring harness data bus diagnostic interface -J533-   16 Control unit for right daytime running light and side light -J861- Right headlight range control motor -V49- 4 CAN bus, to D178 connection 2 (high bus) in engine compartment wiring harness front left headlight -MX1- /front right headlight -MX2- , LED, matrix beam   17 Control unit for right daytime running light and side light -J861- Right headlight range control motor -V49- 5 CAN bus, to D179 connection 2 (low bus) in engine compartment wiring harness front left headlight -MX1- /front right headlight -MX2- , LED, matrix beam   18 Control unit for right daytime running light and side light -J861- Right headlight range control motor -V49- 6   19 Control unit for right daytime running light and side light -J861- Right headlight range control motor -V49- 7 Rear left vehicle level sender -G76-   20 Control unit for left daytime running light and side light -J860- Left headlight range control motor -V48- 8 Terminal 56, from D152 positive connection 1 (56b) in engine compartment wiring harness onboard supply control unit -J519-   21 Control unit for left daytime running light and side light -J860- Left headlight range control motor -V48- 9   22 Control unit for left daytime running light and side light -J860- Left headlight range control motor -V48- 10 Rear left vehicle level sender -G76-   23 Terminal 15, from D200 positive connection 3 (15a) in engine compartment wiring harness fuse holder C -SC- 11 Rear left vehicle level sender -G76-   24 Terminal 31, to 131 earth connection 2 in engine compartment wiring harness 132 earth connection 3 in engine compartment wiring harness 671 earth point 1 on front side member, left 12     25   13     26   Back to overview . 1 -  Headlight range control unit -J431- A -  26-pin connector -T26b- , black Connector assignment, headlight range control unit -J431-     -T26b- (A) Designation   -T26b- (A) Designation 1   14 2 Extended CAN bus, high to E135 connection (extended CAN bus, high) in engine compartment wiring harness B108 connection 1 (extended CAN bus, high) in main wiring harness data bus diagnostic interface -J533-   15 Control unit for left daytime running light and side light -J860- Left headlight range control motor -V48- 3 Extended CAN bus, low to E136 connection (extended CAN bus, low) in engine compartment wiring harness B109 connection 1 (extended CAN bus, low) in main wiring harness data bus diagnostic interface -J533-   16 Control unit for right daytime running light and side light -J861- Right headlight range control motor -V49- 4 CAN bus, to D178 connection 2 (high bus) in engine compartment wiring harness front left headlight -MX1- /front right headlight -MX2- , LED, matrix beam   17 Control unit for right daytime running light and side light -J861- Right headlight range control motor -V49- 5 CAN bus, to D179 connection 2 (low bus) in engine compartment wiring harness front left headlight -MX1- /front right headlight -MX2- , LED, matrix beam   18 Control unit for right daytime running light and side light -J861- Right headlight range control motor -V49- 6   19 Control unit for right daytime running light and side light -J861- Right headlight range control motor -V49- 7 Rear left vehicle level sender -G76-   20 Control unit for left daytime running light and side light -J860- Left headlight range control motor -V48- 8 Terminal 56, from D152 positive connection 1 (56b) in engine compartment wiring harness onboard supply control unit -J519-   21 Control unit for left daytime running light and side light -J860- Left headlight range control motor -V48- 9   22 Control unit for left daytime running light and side light -J860- Left headlight range control motor -V48- 10 Rear left vehicle level sender -G76-   23 Terminal 15, from D200 positive connection 3 (15a) in engine compartment wiring harness fuse holder C -SC- 11 Rear left vehicle level sender -G76-   24 Terminal 31, to 131 earth connection 2 in engine compartment wiring harness 132 earth connection 3 in engine compartment wiring harness 671 earth point 1 on front side member, left 12     25   13     26   Back to overview . AUDI TT 2015 1 -  Parking aid control unit -J446- /park assist steering control unit -J791- B -  26-pin connector -T26a- , black Connector assignment of parking aid control unit -J446- /park assist steering control unit -J791-     -T18a- (A) Designation   -T18a- (A) Designation 1     10 Earth to 348 earth connection (parking aid) in front bumper wiring harness front left parking aid sender -G255- front centre left parking aid sender -G254- front centre right parking aid sender -G253- front right parking aid sender -G252- front left sender for park assist steering on left side of vehicle -G568- front right sender for park assist steering on right side of vehicle -G569- 2 Front left sender for park assist steering on left side of vehicle -G568-   11 Front left parking aid sender -G255- 3 Front centre left parking aid sender -G254-   12 Front centre right parking aid sender -G253- 4 Front right parking aid sender -G252-   13 Front right sender for park assist steering on right side of vehicle -G569- 5   14 Voltage supply to X65 connection (parking aid) in front bumper wiring harness front left parking aid sender -G255- front centre left parking aid sender -G254- front centre right parking aid sender -G253- front right parking aid sender -G252- front left sender for park assist steering on left side of vehicle -G568- front right sender for park assist steering on right side of vehicle -G569- 6     15   7     16   8     17   9     18   -T26a- (B) Designation   -T26a- (B) Designation 1   14 Terminal 15, from B279 positive connection 3 (15a) in main wiring harness fuse holder C -SC- 2 Front parking aid warning buzzer -H22-   15 Rear parking aid warning buzzer -H15- 3 Park assist steering button -E581- 16 Parking aid button -E266- 4 Warning light for park assist steering -K241-   17 Parking aid warning lamp -K136- 5   18 Voltage supply to X68 connection (parking aid) in rear bumper wiring harness rear left park assist steering sender -G716- rear right park assist steering sender -G717- rear left parking aid sender -G203- rear centre left parking aid sender -G204- rear centre right parking aid sender -G205- rear right parking aid sender -G206- 6 Rear left parking aid sender -G203- 19 Rear left park assist steering sender -G716- 7 Rear centre right parking aid sender -G205-   20 Rear centre left parking aid sender -G204- 8 Rear right park assist steering sender -G717-   21 Rear right parking aid sender -G206- 9 Rear parking aid warning buzzer -H15-   22 Earth to 352 earth connection (parking aid) in rear bumper wiring harness rear left park assist steering sender -G716- rear right park assist steering sender -G717- rear left parking aid sender -G203- rear centre left parking aid sender -G204- rear centre right parking aid sender -G205- rear right parking aid sender -G206- 10 Front parking aid warning buzzer -H22-   23 Chassis/dash panel insert CAN bus, low B677 connection 2 (chassis/dash panel insert CAN bus, low) in main wiring harness data bus diagnostic interface -J533- 11   24 Chassis/dash panel insert CAN bus, high B673 connection 2 (chassis/dash panel insert CAN bus, high) in main wiring harness data bus diagnostic interface -J533- 12     25   13 Terminal 31, to 372 earth connection 7 in main wiring harness 687 earth point 1 on centre tunnel   26   AUDI TT 2015 Coupling point on left in engine compartment TML Back to overview . AUDI TT 2015 Fitting location, entry and start authorisation control unit J518 1 -  Entry and start authorisation control unit -J518- Connector assignment, entry and start authorisation control unit -J518-     -T40a- (A) Designation   -T40a- (A) Designation 1     21 Rear right aerial for entry and start authorisation -R166- 2     22 Rear left aerial for entry and start authorisation -R165- 3     23 Luggage compartment aerial for entry and start system -R137- 4     24 Rear left aerial for entry and start authorisation -R165- 5 Comfort CAN bus, low to B407 connection 2 (comfort CAN bus, low) in main wiring harness data bus diagnostic interface -J533-   25   6 Comfort CAN bus, high to B398 connection 2 (comfort CAN bus, high) in main wiring harness data bus diagnostic interface -J533-   26 Onboard supply control unit -J519- 7 Entry and start authorisation button -E408-   27 Onboard supply control unit -J519- 8 Operating unit in front of centre console -E461- Entry and start authorisation button -E408-   28   9     29 10     30 Terminal 30, from fuse holder C -SC- fuse 2 -S132- 11 from coupling point on front left door -TTVL- contact sensor for front left exterior door handle -G605-   31 Entry and start authorisation aerial -R249- 12 from coupling point on front right door -TTVR- driver door exterior handle contact sensor -G415-   32 Rear right aerial for entry and start authorisation -R166- 13     33 Luggage compartment aerial for entry and start system -R137- 14     34 Entry and start authorisation aerial -R249- 15 to coupling point on left A-pillar, bottom -TALU- engine control unit -J623-   35 Onboard supply control unit -J519- 16     36 Interior aerial 1 for entry and start system -R138- 17 Terminal 31, to 372 earth connection 7 in main wiring harness 687 earth point 1 on centre tunnel 37 Interior aerial 2 for entry and start system -R139- 18     38 Interior aerial 1 for entry and start system -R138- 19 Entry and start authorisation button -E408-   39 Interior aerial 2 for entry and start system -R139- 20     40 Onboard supply control unit -J519- Back to overview . 1 -  Entry and start authorisation control unit -J518- A -  40-pin connector -T40a- , black Connector assignment, entry and start authorisation control unit -J518-     -T40a- (A) Designation   -T40a- (A) Designation 1     21 Rear right aerial for entry and start authorisation -R166- 2     22 Rear left aerial for entry and start authorisation -R165- 3     23 Luggage compartment aerial for entry and start system -R137- 4     24 Rear left aerial for entry and start authorisation -R165- 5 Comfort CAN bus, low to B407 connection 2 (comfort CAN bus, low) in main wiring harness data bus diagnostic interface -J533-   25   6 Comfort CAN bus, high to B398 connection 2 (comfort CAN bus, high) in main wiring harness data bus diagnostic interface -J533-   26 Onboard supply control unit -J519- 7 Entry and start authorisation button -E408-   27 Onboard supply control unit -J519- 8 Operating unit in front of centre console -E461- Entry and start authorisation button -E408-   28   9     29 10     30 Terminal 30, from fuse holder C -SC- fuse 2 -S132- 11 from coupling point on front left door -TTVL- contact sensor for front left exterior door handle -G605-   31 Entry and start authorisation aerial -R249- 12 from coupling point on front right door -TTVR- driver door exterior handle contact sensor -G415-   32 Rear right aerial for entry and start authorisation -R166- 13     33 Luggage compartment aerial for entry and start system -R137- 14     34 Entry and start authorisation aerial -R249- 15 to coupling point on left A-pillar, bottom -TALU- engine control unit -J623-   35 Onboard supply control unit -J519- 16     36 Interior aerial 1 for entry and start system -R138- 17 Terminal 31, to 372 earth connection 7 in main wiring harness 687 earth point 1 on centre tunnel 37 Interior aerial 2 for entry and start system -R139- 18     38 Interior aerial 1 for entry and start system -R138- 19 Entry and start authorisation button -E408-   39 Interior aerial 2 for entry and start system -R139- 20     40 Onboard supply control unit -J519- Back to overview . Fitting location, onboard supply control unit -J519- Fitting location Behind dash panel on left.     Unlock Lifetime Access for This Car. 1 -  Onboard supply control unit -J519- B -  46-pin connector -T46a- , black Connector assignment, onboard supply control unit -J519-     -T73a- (A) Designation   -T73a- (A) Designation   -T73a- (A) Designation 1     26   51   2   27   52 Rear lid lock unit -VX25- Rear lid contact switch for anti-theft alarm -F123- 3 Tank filler flap locking motor -V155-   28 LIN bus, to B698 connection 3 (LIN bus) in main wiring harness light switch -E1- humidity sender -G355- light and rain sensor -G397-   53 Rear lid lock unit -VX25- Contact switch in lock cylinder for rear lid, anti-theft alarm system and central locking system -F124- 4 Tank filler flap locking motor -V155-   29 Light switch -E1-   54 Entry and start authorisation control unit -J518- 5   30   55   6   31   56   7     32 Release button for rear lid lock cylinder -F248-   57 B468 connection 4 in main wiring harness suppression filter -C24- additional brake light bulb -M25- 8   33     58   9 Rear lid lock unit -VX25- Rear lid central locking motor -V53-   34     59 B132 connection (licence plate light) in interior wiring harness licence plate light -X- 10     35     60 Left brake light bulb -M9- 11 Reversing light, to B107 connection (reversing light) in main wiring harness   36     61   12 Terminal 31, to 366 earth connection 1 in main wiring harness 367 earth connection 2 in main wiring harness 639 earth point on left A-pillar   37   62   13 Terminal 15, to terminal 15 voltage supply relay -J329-   38     63 Terminal 31, to 366 earth connection 1 in main wiring harness 367 earth connection 2 in main wiring harness 639 earth point on left A-pillar 14 Terminal 15, to B277 positive connection 1 (15a) in main wiring harness   39     64 Right reversing light bulb -M17- 15 LIN bus, to B528 connection 1 (LIN bus) in main wiring harness   40     65 Right tail light bulb -M2- 16 Comfort CAN bus, high to B397 connection 1 (comfort CAN bus, high) in main wiring harness B398 connection 2 (comfort CAN bus, high) in main wiring harness   41     66 Terminal 30, from fuse holder C -SC- fuse 2 -S132- 17 Comfort CAN bus, low to B406 connection 1 (comfort CAN bus, low) in main wiring harness B398 connection 2 (comfort CAN bus, low) in main wiring harness   42     67   18     43     68   19     44 Entry and start authorisation control unit -J518-   69   20 Powertrain CAN bus, low to B390 connection 1 (powertrain CAN bus, low) in main wiring harness   45     70   21 Powertrain CAN bus, high to B383 connection 1 (powertrain CAN bus, high) in main wiring harness   46     71 Rear left turn signal bulb -M6- 22     47 Entry and start authorisation control unit -J518-   72 Rear left fog light bulb -L46- 23     48     73 Terminal 30, from fuse holder C -SC- fuse 3 -S133- 24     49 Centre dash panel switch module -EX22- Adjustable rear spoiler switch -E127-       25     50         -T46a- (B) Designation   -T46a- (B) Designation 1 Right dipped beam   24 Horn relay -J413- 2 Right main beam   25   3     26 4     27 Ambient temperature sensor -G17- 5 Right fog light   28 Windscreen washer fluid level sender -G33- 6 Left cornering light   29   7 Windscreen and rear window washer pump -V59-   30 LIN bus, to windscreen wiper motor -V- 8     31 9 D101 connection 1 in engine compartment wiring harness left washer jet heater element -Z20- right washer jet heater element -Z21- 32 Control unit for left daytime running light and side light -J860- 10     33 11 Reversing light switch -F4- 34 12 D53 connection (right brake pad wear indicator) in engine compartment wiring harness front right brake pad wear sender -G35-   35   13 Brake fluid level warning contact -F34-   36 14 D103 connection 3 in engine compartment wiring harness bonnet contact switch -F266- bonnet contact switch 2 -F329-   37   15     38 16 Coolant shortage indicator switch -F66-   39 Left main beam, output module 1 for left LED headlight -A31- 17     40 18     41 19 Sender earth to 327 earth connection (sender earth) in engine compartment wiring harness   42 20 Front left turn signal, front left turn signal bulb -M5-   43   21     44 Right cornering light 22     45 Left fog light 23     46 Headlight washer system pump -V11- -T73c- (C) Designation   -T73c- (C) Designation   -T73c- (C) Designation 1 Terminal 30, from fuse holder C -SC- fuse 3 -S133- 26   51 Centre dash panel switch module -EX22- Start/Stop operation warning lamp -K259- 2   27   52   3     28   53   4   29   54   5 Left dipped beam, to D152 positive connection 1 (56b) in engine compartment wiring harness   30     55   6 Rear right fog light bulb -L47- 31 Rear right turn signal bulb -M8-   56   7     32     57   8 Right brake light bulb -M10-   33   58 Terminal 54, from D73 positive connection (54) in engine compartment wiring harness brake light switch -F- brake pedal switch -F63- 9 B466 connection 2 in main wiring harness luggage compartment light on left -W18- luggage compartment light on right -W35-   34 Centre dash panel switch module -EX22- Driving mode selection button -E735-   59 10 Left tail light bulb -M4-   35   60 Centre dash panel switch module -EX22- Start/Stop operation button -E693- 11     36     61   12 Terminal 30g, to fuse holder C -SC- B559 positive connection 1 (30g) in main wiring harness glove compartment light switch -E26- front roof module -WX3-   37   62 Terminal 58s, to B731 connection 1 (58s) in main wiring harness 13     38     63 Terminal 31, to 366 earth connection 1 in main wiring harness 367 earth connection 2 in main wiring harness 639 earth point on left A-pillar 14 Entry and start authorisation control unit -J518-   39   64 15     40     65   16 Terminal 31, to 683 earth point on front side member, right   41   66   17     42 Centre dash panel switch module -EX22- Hazard warning lights button -E229-   67 Front roof module -WX3- 18     43     68   19     44     69   20     45     70   21     46     71   22     47 Centre dash panel switch module -EX22- Rear spoiler position warning lamp -K242-   72 23     48 Centre dash panel switch module -EX22- Indicator lamp for hazard warning light -K6-   73 Terminal 30, from fuse holder C -SC- fuse 2 -S132- 24 Heated rear window relay -J9-   49       25     50         Back to overview . AUDI TT 2015 Fitting location, digital sound package control unit J525 1 -  Digital sound package control unit -J525- B -  38-pin connector -T38- , black Connector assignment, digital sound package control unit -J525-     -T38- (B) Designation   -T38- (B) Designation 1 Terminal 30, from fuse holder C -SC- fuse 3 -S133- 20 Front right bass loudspeaker -R23- 2 Terminal 31, to 639 earth point on left A-pillar 21 Front right bass loudspeaker -R23- 3   22 Front right bass loudspeaker -R23- 4 Front left mid-range loudspeaker -R103-   23 Front right treble loudspeaker -R22- 5 Front left mid-range loudspeaker -R103-   24 Front left treble loudspeaker -R20- 6 Centre loudspeaker 2 -R219- 25 Rear left treble loudspeaker -R14- 7 Front left bass loudspeaker -R21- 26 Rear right treble loudspeaker -R16- 8 Front left bass loudspeaker -R21- 27 9 Front left bass loudspeaker -R21- 28 Centre loudspeaker -R208- 10 Front left bass loudspeaker -R21- 29 Internal microphone -R74- Microphone unit in front roof module -R164- 11 Rear left bass loudspeaker -R15-   30 12 Rear left bass loudspeaker -R15-   31 Front right treble loudspeaker -R22- 13 Rear right bass loudspeaker -R17-   32 Front left treble loudspeaker -R20- 14 Rear right bass loudspeaker -R17-   33 Rear left treble loudspeaker -R14- 15   34 Rear right treble loudspeaker -R16- 16 Front right mid-range loudspeaker -R104-   35 17 Front right mid-range loudspeaker -R104-   36 Centre loudspeaker -R208- 18 Centre loudspeaker 2 -R219- 37 Internal microphone -R74- Microphone unit in front roof module -R164- 19 Front right bass loudspeaker -R23- 38 Ring break diagnosis, B444 connection 1 (diagnosis) in main wiring harness Back to overview . AUDI TT 2015 Fitting location, steering column electronics control unit J527 Fitting location, steering column electronics control unit -J527- Fitting location On steering column.     Unlock Lifetime Access for This Car. 1 -  Steering column electronics control unit -J527- Connector assignment, steering column electronics control unit -J527-     -T17a- (A) Designation   -T17a- (A) Designation 1 Terminal 30, from fuse holder C -SC- 10 2 LIN bus, to data bus diagnostic interface -J533-   11 3 Comfort CAN bus, high to B397 connection 1 (comfort CAN bus, high) in main wiring harness B398 connection 2 (comfort CAN bus, high) in main wiring harness data bus diagnostic interface -J533-   12   4 Comfort CAN bus, low to B406 connection 1 (comfort CAN bus, low) in main wiring harness B407 connection 2 (comfort CAN bus, low) in main wiring harness data bus diagnostic interface -J533-   13   5   14 6 Selector lever -E313- Selector lever sensors control unit -J587-   15   7 Engine control unit -J623-   16   8     17 Terminal 31, to 367 earth connection 2 in main wiring harness 639 earth point on left A-pillar 9         Back to overview .     AUDI TT 2015 Fitting location, roof electronics control unit J528 Fitting location, roof electronics control unit -J528- Fitting location In front roof module -WX3- . Unlock Lifetime Access for This Car. 1 -  Roof electronics control unit -J528- B -  3-pin connector -T3b- , black q   for garage door operating unit -E284- D -  12-pin connector -T12c- , black q   for roof electronics control unit -J528- Connector assignment of roof electronics control unit -J528- -T12c- (D) Designation   -T12c- (D) Designation 1     7 Automatic anti-dazzle interior mirror -Y7- 2     8 Terminal 30, from fuse holder C -SC- 3     9 Onboard supply control unit -J519- 4 Airbag control unit -J234-   10 Terminal 31, to 639 earth point on left A-pillar 5 Airbag control unit -J234-   11 Terminal 58s, to B731 connection 1 (58s) in main wiring harness 6 Airbag control unit -J234-   12 Terminal 30, from B559 positive connection 1 (30g) in main wiring harness Back to overview . AUDI TT 2015 Fitting location, data bus diagnostic interface J533 Fitting location, data bus diagnostic interface -J533- Fitting location Behind dash panel on driver side.     Unlock Lifetime Access for This Car. 1 -  Data bus diagnostic interface -J533- Connector assignment, data bus diagnostic interface -J533-     -T20a- (A) Designation   -T20a- (A) Designation 1 Terminal 30, from terminal 15 voltage supply relay -J329-   11 Terminal 31, to 376 earth connection 11 in main wiring harness 370 earth connection 5 in main wiring harness 639 earth point on left A-pillar 2     12 3 LIN bus, to B711 connection 6 (LIN bus) in main wiring harness   13 LIN bus, to steering column electronics control unit -J527- 4   14 Terminal 15, from B277 positive connection 1 (15a) in main wiring harness onboard supply control unit -J519- 5 Comfort CAN bus, low to B407 connection 2 (comfort CAN bus, low) in main wiring harness 15 Comfort CAN bus, high to B398 connection 2 (comfort CAN bus, high) in main wiring harness 6 Powertrain CAN bus, low to B390 connection 1 (powertrain CAN bus, low) in main wiring harness   16 Powertrain CAN bus, high to B383 connection 1 (powertrain CAN bus, high) in main wiring harness 7 Extended CAN bus, low to B109 connection 1 (extended CAN bus, low) in main wiring harness   17 Extended CAN bus, high to B108 connection 1 (extended CAN bus, high) in main wiring harness 8 Chassis/dash panel insert CAN bus, low B677 connection 2 (chassis/dash panel insert CAN bus, low) in main wiring harness   18 Chassis/dash panel insert CAN bus, high B673 connection 2 (chassis/dash panel insert CAN bus, high) in main wiring harness 9 Diagnosis CAN bus, low to B714 connection 1 (diagnosis CAN bus, low) in main wiring harness diagnostic connection -U31-   19 Diagnosis CAN bus, high to B713 connection 1 (diagnosis CAN bus, high) in main wiring harness diagnostic connection -U31- 10 Infotainment CAN bus, low to B421 connection 1 (infotainment CAN bus, low) in main wiring harness   20 Infotainment CAN bus, high to B415 connection 1 (infotainment CAN bus, high) in main wiring harness Back to overview . AUDI TT 2015 Fitting location, fuel pump control unit J538 1 -  Fuel pump control unit -J538- q   with fuel gauge sender -G- , fuel system pressurisation pump -G6- , fuel gauge sender 2 -G169- B -  6-pin connector -T6i- , black q   models with diesel engine only Connector assignment, fuel pump control unit -J538- Petrol engine     -T5o- (A) Designation 1 Fuel system pressurisation pump -G6- 2 Fuel system pressurisation pump -G6- 3 Terminal 30, from fuse holder B -SB- 4 Terminal 31, to 375 earth connection 10 in main wiring harness 730 earth point 1 on rear right wheel housing 5 Engine control unit -J623- Diesel engine     -T6i- (B) Designation 1 Fuel system pressurisation pump -G6- 2 Fuel system pressurisation pump -G6- 3 Fuel system pressurisation pump -G6- 4 Terminal 31, to 375 earth connection 10 in main wiring harness 730 earth point 1 on rear right wheel housing 5 Terminal 30, from fuse holder B -SB- 6 Engine control unit -J623- Back to overview . AUDI TT 2015 Fitting location, chip card reader control unit J676 1 -  Chip card reader control unit -J676- A -  4-pin connector -T4ca- , brown B -  10-pin connector -T10u- , black C -  2-pin connector -T2gy- , yellow Connector assignment, chip card reader control unit -J676-     -T4ca- (A) Designation   -T2gy- (C) Designation 1 USB connection holder -R193- 1 Dedicated short-range communication aerial -R269- 2 USB connection holder -R193- 2 Dedicated short-range communication aerial -R269- 3 USB connection holder -R193-   4 USB connection holder -R193-   5 USB connection holder -R193- Screen earth     -T10u- (B) Designation   -T10u- (B) Designation 1 Traffic data aerial -R173- 6 LIN bus, to B699 connection 4 (LIN bus) in main wiring harness Climatronic control unit -J255- 2 Traffic data aerial -R173- 7 Traffic data aerial -R173- 3 Traffic data aerial -R173- 8 Traffic data aerial -R173- 4 Traffic data aerial -R173- 9 Terminal 30, from B318 positive connection 4 (30a) in main wiring harness fuse holder C -SC- 5     10 Terminal 31, to 477 earth connection (audio) in main wiring harness 687 earth point 1 on centre tunnel Back to overview .     AUDI TT 2015 Fitting location, seat occupied recognition control unit J706 Fitting location, seat occupied recognition control unit -J706- Fitting location under front passenger seat. Unlock Lifetime Access for This Car. 1 -  Seat occupied recognition control unit -J706- B -  3-pin connector -T3ad- Connector assignment, seat occupied recognition control unit -J706- -T10v- (A) Designation   -T3ad- (B) Designation 1   1 Terminal 15, from fuse holder C -SC- 2 Screen earth 2 Airbag control unit -J234- 3 Terminal 31, to 35 earth point under front passenger seat 3 Terminal 31, to 95 earth connection 1 in seat adjustment wiring harness 4 Terminal 31, to 136 earth connection 2 in seat heating wiring harness     5         6 Heated front passenger seat -Z8-       7         8 Heated front passenger seat -Z8-       9         10 Positive supply, from O14 connection 3 in seat heating wiring harness       Back to overview . AUDI TT 2015 Fitting location, control unit for electronic steering column lock J764 Fitting location, control unit for electronic steering column lock -J764- Fitting location On top of the steering column. Unlock Lifetime Access for This Car. 1 -  Control unit for electronic steering column lock -J764- Connector assignment of control unit for electronic steering column lock -J764-     -T4l- (A) Designation 1 Comfort high CAN bus, to B397 connection 1 (comfort high CAN bus) in main wiring harness 2 Comfort low CAN bus to B406 connection 1 (comfort low CAN bus) in main wiring harness 3 Terminal 30, from fuse holder C -SC- 4 Terminal 31, to 639 earth point on left A-pillar Back to overview . AUDI TT 2015 Fitting location, control unit 1 for information electronics J794 Fitting location, control unit 1 for information electronics -J794- Fitting location In glove compartment.     Unlock Lifetime Access for This Car. 1 -  Control unit 1 for information electronics -J794- A -  2-pin connector -T2gg- , aerial connection, LTE, Bordeaux, LTE aerial 1 -R297- D -  8-pin connector -T8q- , black F -  12-pin connector -T12n- , green H -  8-pin connector -T8p- , brown K -  4-pin connector -T4aa- , grey, display unit for front information display and operating unit control unit -J685- M -  4-pin connector -T4bl- , aerial connection, AM/FM, white, aerial amplifier -R24- Connector assignment, control unit 1 for information electronics -J794-     -T8g- (D) Designation   -T8p- (H) Designation 9   1 Rear right treble loudspeaker -R16- Rear right bass loudspeaker -R17- 10 Centre loudspeaker -R208- 2 Front right treble loudspeaker -R22- Front right bass loudspeaker -R23- 11     3 Front left treble loudspeaker -R20- Front left bass loudspeaker -R21- 12     4 Rear left treble loudspeaker -R14- Rear left bass loudspeaker -R15- 13   5 Rear right treble loudspeaker -R16- Rear right bass loudspeaker -R17- 14 Centre loudspeaker -R208- 6 Front right treble loudspeaker -R22- Front right bass loudspeaker -R23- 17 Terminal 31, to 383 earth connection 18 in main wiring harness 687 earth point 1 on centre tunnel 7 Front left treble loudspeaker -R20- Front left bass loudspeaker -R21- 18 Terminal 30, from fuse holder C -SC-   8 Rear left treble loudspeaker -R14- Rear left bass loudspeaker -R15- -T12m- (E) Designation   -T12n- (F) Designation 1 Display and operation CAN bus, low B751 connection 1 (display and operation CAN bus, low) display unit for front information display and operating unit control unit -J685- multimedia system operating unit -E380-   1 Connection for external audio sources -R199- 2 Multimedia system operating unit -E380-   2 Connection for external audio sources -R199- 3 Ring circuit break diagnostic wire B444 connection 1 (diagnosis) in main wiring harness   3 Connection for external audio sources -R199- 4   4 5 Telephone bracket -R126- B478 connection 14 in main wiring harness   5   6 Infotainment CAN bus, high B415 connection 1 (infotainment CAN bus, high) in main wiring harness 6 7 Display and operation CAN bus, high B750 connection 1 (display and operation CAN bus, high) display unit for front information display and operating unit control unit -J685- multimedia system operating unit -E380-   7 Connection for external audio sources -R199- 8 Multimedia system operating unit -E380-   8 Screen earth, connection for external audio sources -R199- 9   9 10   10 11 Telephone bracket -R126-   11   12 Infotainment CAN bus, low B421 connection 1 (infotainment CAN bus, low) in main wiring harness   12   -T12i- (G) Designation   -T12i- (G) Designation 1 Telephone microphone -R38- , coupé Belt microphone control unit -J886- , roadster 7 Telephone microphone -R38- , coupé Screen earth, control unit for seat belt microphone -J886- , roadster 2 Screen earth, control unit for seat belt microphone -J886- , roadster 8 Control unit for seat belt microphone -J886- , roadster 3     9 4     10 5     11 6 Reversing camera system control unit -J772-   12 Reversing camera system control unit -J772- Back to overview .     AUDI TT 2015 Fitting location Main beam assist control unit J844 Fitting location Main beam assist control unit -J844- Fitting location On interior mirror. Unlock Lifetime Access for This Car. 1 -  Main beam assist control unit -J844- Connector assignment of main beam assist control unit -J844- -T8a- (A) Designation   -T8a- (A) Designation 1 Terminal 15, from fuse holder C -SC- 5 Mirror dimming signal line, to B428 connection 2 (mirror signal) in main wiring harness 2 Terminal 31, to 639 earth point on left A-pillar 6   3 Extended high CAN bus, to B108 connection 1 (extended high CAN bus) in main wiring harness 7   4 Mirror dimming signal line, to B427 connection 1 (mirror signal) in main wiring harness 8 Extended CAN bus, low, from B109 connection 1 (extended CAN bus, low) in main wiring harness Back to overview . AUDI TT 2015 Fitting location, exhaust flap control unit J883 Fitting location, exhaust flap control unit -J883- Fitting location On exhaust pipe, near front cross member.     Unlock Lifetime Access for This Car. 1 -  Exhaust flap control unit -J883- Connector assignment, exhaust flap control unit -J883-     -T5h- (A) Designation 1 D109 connection 7 in engine compartment wiring harness engine control unit -J623- 2 Engine control unit -J623- 3 419 earth connection 11 in engine compartment wiring harness engine control unit -J623- 4 Engine control unit -J623- 5 Engine control unit -J623- Back to overview . AUDI TT 2015 Fitting location, control unit for seat belt microphone J886 Fitting location, control unit for seat belt microphone -J886- Fitting location Under front of centre console.     Unlock Lifetime Access for This Car. 1 -  Control unit for seat belt microphone -J886- Connector assignment, control unit for seat belt microphone -J886-     -T32d- (A) Designation   -T32d- (A) Designation 1 Microphone unit in front roof module -R164- Telephone microphone -R38- 17 Microphone unit in front roof module -R164- Telephone microphone -R38- 2 Microphone 1 on driver side -R224- 18 Microphone 1 on front passenger side -R227- 3 Microphone 1 on driver side -R224- 19 Microphone 1 on front passenger side -R227- 4 Microphone 1 on driver side -R224- 20 Microphone 1 on front passenger side -R227- 5 Microphone 1 on driver side -R224- 21 Microphone 1 on front passenger side -R227- 6 Microphone 1 on driver side -R224- 22 Microphone 1 on front passenger side -R227- 7 Microphone 1 on driver side -R224- 23 Microphone 1 on front passenger side -R227- 8 Terminal 31, to 372 earth connection 7 in main wiring harness 687 earth point 1 on centre tunnel 24 9 Control unit 1 for information electronics -J794- 25 Control unit 1 for information electronics -J794- 10 Control unit 1 for information electronics -J794- 26 Control unit 1 for information electronics -J794- 11     27 12     28 13     29 14 Terminal 30, from B318 positive connection 4 (30a) in main wiring harness fuse holder C -SC- fuse 2 -S132- 30 15 31 16 Infotainment CAN bus, high B415 connection 1 (infotainment CAN bus, high) in main wiring harness data bus diagnostic interface -J533- 32 Infotainment CAN bus, low B421 connection 1 (infotainment CAN bus, low) in main wiring harness data bus diagnostic interface -J533- Back to overview . AUDI TT 2015 Fitting location, front camera for driver assist systems R242 Fitting location, front camera for driver assist systems -R242- Fitting location Near interior mirror.     Unlock Lifetime Access for This Car. 1 -  Front camera for driver assist systems -R242- Fitting location, front camera for driver assist systems -R242-     -T12b- (A) Designation   -T12b- (A) Designation 1     7 2 Extended CAN bus, low to B109 connection 1 (extended CAN bus, low) in main wiring harness data bus diagnostic interface -J533- 8 Extended CAN bus, high to B108 connection 1 (extended CAN bus, high) in main wiring harness data bus diagnostic interface -J533- 3     9 4 Windscreen heater for lane departure warning -Z67-   10   5 Terminal 31, to 369 earth connection 4 in main wiring harness 370 earth connection 5 in main wiring harness 639 earth point on left A-pillar   11   6 Terminal 15, from B279 positive connection 3 (15a) in main wiring harness   12 Back to overview . AUDI TT 2015 1 -  Convertible roof actuation motor -V82- /convertible roof actuation motor 2 -V576- 10-pin connector -T10s- , black/10-pin connector -T10g- , black Connector assignment, convertible roof actuation motor -V82- /convertible roof actuation motor 2 -V576-     -T10s- (A) Designation   -T10g- (A) Designation 1   1 2   2 3     3 4   4 5 Terminal 31, to 387 earth connection 22 in main wiring harness 368 earth connection 3 in main wiring harness 729 earth point on rear left wheel housing   5 Terminal 31, to 387 earth connection 22 in main wiring harness 368 earth connection 3 in main wiring harness 729 earth point on rear left wheel housing 6 M32 connection 1 in convertible roof actuation wiring harness convertible roof actuation control unit -J256- 6 M32 connection 1 in convertible roof actuation wiring harness convertible roof actuation control unit -J256- 7 Convertible roof actuation control unit -J256-   7 Convertible roof actuation control unit -J256- 8 Convertible roof actuation control unit -J256-   8 Convertible roof actuation control unit -J256- 9 Convertible roof actuation control unit -J256-   9 Convertible roof actuation control unit -J256- 10 Convertible roof actuation control unit -J256-   10 Convertible roof actuation control unit -J256- Back to overview . AUDI TT 2015 Fitting location, cabriolet windbreak motor V186 Fitting location, cabriolet windbreak motor -V186- Fitting location On rear of windbreak in centre.     Unlock Lifetime Access for This Car. 1 -  Cabriolet windbreak motor -V186- Connector assignment, cabriolet windbreak motor -V186-     -T3bi- (A) Designation 1 2 Convertible roof actuation control unit -J256- 3 Convertible roof actuation control unit -J256- Back to overview . AUDI TT 2015 Fitting location, convertible roof lock motor V223 Fitting location, convertible roof lock motor -V223- Fitting location Behind cover near front interior light -W1- .     Unlock Lifetime Access for This Car. 1 -  Convertible roof lock motor -V223- Connector assignment, convertible roof lock motor -V223-     -T4ch- (A) Designation 1 Convertible roof actuation control unit -J256- 2 3 Convertible roof actuation control unit -J256- 4   Back to overview .     AUDI TT 2015 6-pin connector -T6a-, black/6-pin connector -T6ax-, black Coupling point on left in engine compartment -TML- Unlock Lifetime Access for This Car. 6-pin connector -T6a-, black/6-pin connector -T6ax-, black q   Only petrol 10-pin connector -T10p-, black/10-pin connector -T10px-, black q   Only diesel 10-pin connector -T10o-, black/10-pin connector -T10ox-, black 8-pin connector -T8m-, black/8-pin connector -T8mx-, black Coupling point on front left door -TTVL- Unlock Lifetime Access for This Car. 27-pin connector -T27a-, black/27-pin connector -T27ax-, black Coupling point on front right door -TTVR- Unlock Lifetime Access for This Car. 27-pin connector -T27b-, black/27-pin connector -T27bx-, black Coupling point on left A-pillar, bottom -TALU- Unlock Lifetime Access for This Car. 17-pin connector -T17f-, green/17-pin connector -T17fx-, green 17-pin connector -T17c-, black/17-pin connector -T17cx-, black 17-pin connector -T17e-, red/17-pin connector -T17ex-, red 17-pin connector -T17d-, brown/17-pin connector -T17dx-, brown 17-pin connector -T17b-, blue/17-pin connector -T17bx-, blue 10-pin connector -T10b-, white/10-pin connector -T10bx-, white q   Right-hand drive vehicles only Coupling point right A-pillar, bottom -TARU- Unlock Lifetime Access for This Car. A -  10-pin connector -T10b-, white/10-pin connector -T10bx-, white q   Left-hand drive vehicles only Coupling point for front left seat -TSVL- Unlock Lifetime Access for This Car. 10-pin connector -T10d-, black/10-pin connector -T10dx-, black 6-pin connector -T6f-, green/6-pin connector -T6fx-, green 10-pin connector -T10c-, red/10-pin connector -T10cx-, red 3-pin connector -T3d-, yellow/3-pin connector -T3dx-, yellow 5-pin connector -T5a-, black/5-pin connector -T5ax-, black Coupling point for front right seat -TSVR- Unlock Lifetime Access for This Car. 5-pin connector -T5b-, black/5-pin connector -T5bx-, black 3-pin connector -T3e-, yellow/3-pin connector -T3ex-, yellow 10-pin connector -T10e-, red/10-pin connector -T10ex-, red 6-pin connector -T6g-, green/6-pin connector -T6gx-, green 10-pin connector -T10f-, black/10-pin connector -T10fx-, black Diagnostic connection -U31- Unlock Lifetime Access for This Car. Coupling point on front left bumper -TSFVL- Unlock Lifetime Access for This Car. 14-pin connector -T14d-, black/14-pin connector -T14dx-, black Coupling point on rear left bumper -TSFHL- Unlock Lifetime Access for This Car. 10-pin connector -T10k-, black/10-pin connector -T10kx-, black 8-pin connector -T8b-, black/8-pin connector -T8bx-, black Coupling point on rear lid, left -THKL- Unlock Lifetime Access for This Car. 17-pin connector -T17k-, black/17-pin connector -T17kx-, black Coupling point in luggage compartment, left -THRL- Unlock Lifetime Access for This Car. 10-pin connector -T10t-, black/10-pin connector -T10tx-, black Coupling point on front cross member, left -TQVL- Unlock Lifetime Access for This Car. A -  Ignore 5-pin connector -T5i-, brown/5-pin connector -T5ix-, brown Can't find your car? Check -> DiagnostData.com! Login Email or Login Password Remember me Sign up Get a new password Sign up Email Password Confirm password * A password will be generated automatically and sent to your Email Login Get a new password Get a new password Email Login Sign up