AUDI TT 2015

Wiring Diagram AUDI TT 2015 - Data bus diagnostic interface - Interface control unit for vehicle location system - Fuse holder C

A	Battery
J533	Data bus diagnostic interface
J843	Interface control unit for vehicle location system
S132	Fuse 2
SC	Fuse holder C
SC18	Fuse 18 on fuse holder C
T12e	12-pin connector
T20a	20-pin connector, red
368	Earth connection 3, in main wiring harness

B315	Positive connection 1 (30a) in main wiring harness
B397	Connection 1 (convenience CAN bus, high), in main wiring harness
B398	Connection 2 (convenience CAN bus, high), in main wiring harness
B406	Connection 1 (convenience CAN bus, low), in main wiring harness
B407	Connection 2 (convenience CAN bus, low), in main wiring harness
*	see applicable current flow diagram for fuse assignment
*2	From June 2015

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

Overview of control units in middle part of vehicle

Get access to all wiring diagrams of the car

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

Get access to all wiring diagrams of the car

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.

Get access to all wiring diagrams of the 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.

Get access to all wiring diagrams of the 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

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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-

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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.

AUDI TT 2015 Fitting location, control unit in dash panel insert J285

Get access to all wiring diagrams of the 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-

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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-

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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-

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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

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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

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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

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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-

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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-

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Fitting location, onboard supply control unit -J519-

Fitting location

Behind dash panel on left.

Get access to all wiring diagrams of the 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

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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

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AUDI TT 2015 Fitting location, steering column electronics control unit J527

Fitting location, steering column electronics control unit -J527-

Fitting location

On steering column.

Get access to all wiring diagrams of the 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

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AUDI TT 2015 Fitting location, roof electronics control unit J528

Fitting location, roof electronics control unit -J528-

Fitting location

In front roof module -WX3- .

Get access to all wiring diagrams of the 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

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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.

Get access to all wiring diagrams of the 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

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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-

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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

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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.

Get access to all wiring diagrams of the 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

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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.

Get access to all wiring diagrams of the 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

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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.

Get access to all wiring diagrams of the 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-

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AUDI TT 2015 Fitting location Main beam assist control unit J844

Fitting location Main beam assist control unit -J844-

Fitting location

On interior mirror.

Get access to all wiring diagrams of the 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

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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.

Get access to all wiring diagrams of the 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-

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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.

Get access to all wiring diagrams of the 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-

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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.

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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

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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-

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AUDI TT 2015 Fitting location, cabriolet windbreak motor V186

Fitting location, cabriolet windbreak motor -V186-

Fitting location

On rear of windbreak in centre.

Get access to all wiring diagrams of the 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-

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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- .

Get access to all wiring diagrams of the 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

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

Overview of control units in rear part of vehicle

Get access to all wiring diagrams of the car

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

AUDI TT 2015 Fitting location, convertible roof actuation control unit J256

1 -	Convertible roof actuation control unit -J256-

A -	not assigned

C -	20-pin connector -T20e- , black

E -	6-pin connector -T6e- , black

AUDI TT 2015 Fitting location, battery monitor control unit J367

Fitting location, battery monitor control unit -J367-

Fitting location

In luggage compartment on negative terminal of battery -A- .

Get access to all wiring diagrams of the car

1 -	Battery monitor control unit -J367-

Connector assignment, battery monitor control unit -J367-

-T2a- (A)	Designation
1	LIN bus, to B710 connection 5 (LIN bus) in main wiring harness data bus diagnostic interface -J533-
2	Connection B1, main fuse carrier on battery -A- terminal 30

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AUDI TT 2015 Fitting location, all-wheel drive control unit J492

1 -	All-wheel drive control unit -J492-

B -	2-pin connector -T2cx- , black

Connector assignment, all-wheel drive control unit -J492-

-T8c- (A)	Designation	-T2cx- (B)	Designation
1	Terminal 15, from coupling point in luggage compartment, centre -THRM- B277 positive connection 1 (15a) in main wiring harness onboard supply control unit -J519-	1	Haldex coupling pump -V181-
2	Chassis/dash panel insert CAN bus, low coupling point in luggage compartment, centre -THRM- B676 connection 1 (chassis/dash panel insert CAN bus, low) in main wiring harness B677 connection 2 (chassis/dash panel insert CAN bus, low) in main wiring harness Data bus diagnostic interface -J533-	2	Haldex coupling pump -V181-
3	Terminal 30, from coupling point in luggage compartment, centre -THRM- fuse holder C -SC- fuse 3 -S133-
4	Chassis/dash panel insert CAN bus, high coupling point in luggage compartment, centre -THRM- B672 connection 1 (chassis/dash panel insert CAN bus, high) in main wiring harness B673 connection 2 (chassis/dash panel insert CAN bus, high) in main wiring harness Data bus diagnostic interface -J533-
5
6
7	Terminal 31, to coupling point in luggage compartment, centre -THRM- 729 earth point on rear left wheel housing
8

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AUDI TT 2015 Fitting location, Tyre Pressure Monitoring System control unit J502

Fitting location, Tyre Pressure Monitoring System control unit -J502-

Fitting location

On underbody at rear left.

Get access to all wiring diagrams of the car

1 -	Tyre Pressure Monitoring System control unit -J502-

Connector assignment, Tyre Pressure Monitoring System control unit -J502-

-T4ci- (A)	Designation
1	Extended low CAN bus, to B109 connection 1 (extended low CAN bus) in main wiring harness
2	Terminal 30, from fuse holder C -SC-
3	Extended high CAN bus, to B108 connection 1 (extended high CAN bus) in main wiring harness
4	Terminal 31, to 729 earth point on rear left wheel housing

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AUDI TT 2015 Fitting location, lane change assist control unit J769

Fitting location, lane change assist control unit -J769-

Fitting location

Behind rear bumper on right.

Get access to all wiring diagrams of the car

1 -	Lane change assist control unit -J769-

Connector assignment, lane change assist control unit -J769-

-T12g- (A)	Designation	-T12g- (A)	Designation
1	Lane change assist control unit 2 -J770-	7
2	Lane change assist control unit 2 -J770-	8
3		9	Terminal 15, from X171 connection (15) in rear bumper wiring harness B279 positive connection 3 (15a) in main wiring harness fuse holder C -SC-
4		10	Terminal 31, to 470 earth connection 1 in rear bumper wiring harness 729 earth point on rear left wheel housing
5	Extended CAN bus, low to B109 connection 1 (extended CAN bus, low) in main wiring harness data bus diagnostic interface -J533-	11
6		12	Extended CAN bus, high to B108 connection 1 (extended CAN bus, high) in main wiring harness data bus diagnostic interface -J533-

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AUDI TT 2015 Fitting location, lane change assist control unit 2 J770

Fitting location, lane change assist control unit 2 -J770-

Fitting location

behind rear bumper on left

Get access to all wiring diagrams of the car

1 -	Lane change assist control unit 2 -J770-

Connector assignment, lane change assist control unit 2 -J770-

-T12h- (A)	Designation	-T12h- (A)	Designation
1		7
2	Lane change assist warning lamp in front passenger side exterior mirror -K234-	8	Lane change assist warning lamp in front passenger side exterior mirror -K234-
3		9	Terminal 15, from X171 connection (15) in rear bumper wiring harness B279 positive connection 3 (15a) in main wiring harness fuse holder C -SC-
4	Lane change assist warning lamp in driver side exterior mirror -K233-	10	Terminal 31, to 470 earth connection 1 in rear bumper wiring harness 729 earth point on rear left wheel housing
5	Lane change assist control unit -J769-	11
6	Lane change assist warning lamp in driver side exterior mirror -K233-	12	Lane change assist control unit -J769-

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AUDI TT 2015 Fitting location Reversing camera system control unit J772

Fitting location Reversing camera system control unit -J772-

Fitting location

In rear lid button handle.

Get access to all wiring diagrams of the car

1 -	Reversing camera system control unit -J772-

B -	2-pin connector -T2e- , grey

q	to control unit for information electronics 1 -J794-

Connector assignment, reversing camera system control unit -J772-

-T8d- (A)	Designation	-T8d- (A)	Designation
1	Terminal 30, from fuse holder C -SC-	5	Terminal 31, to 729 earth point on rear left wheel housing¹⁾ 730 earth point 1 on right rear wheel housing²⁾
2		6
3		7
4	Infotainment CAN bus, high, to B415 connection 1 (infotainment CAN bus, high) in main wiring harness¹⁾ B416 connection 2 (infotainment CAN bus, high) in main wiring harness²⁾	8	Infotainment CAN bus, low, to B421 connection 1 (infotainment CAN bus, low) in main wiring harness¹⁾ B422 connection 2 (infotainment CAN bus, low) in main wiring harness²⁾

¹⁾ roadster

²⁾ coupé

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AUDI TT 2015 Fitting location, interface control unit for vehicle location system J843

Fitting location, interface control unit for vehicle location system -J843-

Fitting location

In left of luggage compartment, behind side trim.

Get access to all wiring diagrams of the car

1 -	Interface control unit for vehicle location system -J843-

Connector assignment, interface control unit for vehicle location system -J843-

-T12e- (A)	Designation	-T12e- (A)	Designation
1		7	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-
2		8	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-
3	Terminal 30, from fuse holder C -SC- B315 positive connection 1 (30a) in main wiring harness fuse 2 -S132-	9
4		10
5		11
6	Terminal 31, to 368 earth connection 3 in main wiring harness 729 earth point on rear left wheel housing	12

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AUDI TT 2015 Fitting location TV tuner R78

1 -	TV tuner -R78-

B -	4-pin connector -T4bh- , green, aerial amplifier 1 for TV -R82- , aerial amplifier 2 for TV -R83-

D -	12-pin connector -T12l- , black

Connector assignment, TV tuner -R78-

-T12l- (D)	Designation	-T12l- (D)	Designation
1	Terminal 30, from B318 positive connection 4 (30a) in main wiring harness fuse holder C -SC- fuse 2 -S132-	7	Audio out L
2	Terminal 31, to 371 earth connection 6 in main wiring harness 730 earth point 1 on rear right wheel housing	8	Audio out R
3	Ring circuit break diagnostic wire B444 connection 1 (diagnosis) in main wiring harness	9	Screen earth
4	Screen earth	10	Audio in L
5	Video out	11	Audio in R
6	Screen earth	12	Video in

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AUDI TT 2015 Fitting location, aerial amplifier for mobile telephone R86

Fitting location, aerial amplifier for mobile telephone -R86-

Fitting location

On right in luggage compartment, behind side trim.

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1 -	Aerial amplifier for mobile telephone -R86-

B -	2-pin connector -T2gr- , connection roof aerial -R216- , telephone aerial -R65-

Connector assignment, aerial amplifier for mobile telephone -R86-

-T4bv- (A)	Designation
1	Terminal 30, from B318 positive connection 4 (30a) in main wiring harness fuse holder C -SC- fuse 2 -S132-
2	Terminal 31, to 371 earth connection 6 in main wiring harness 730 earth point 1 on right rear wheel housing
3	V32 positive connection (30) in telephone wiring harness telephone bracket -R126- control unit 1 for Information electronics -J794-
4

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AUDI TT 2015 Overview of fuses

Overview of fuses

Get access to all wiring diagrams of the car

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-

Get access to all wiring diagrams of the car

1 -	Fuse holder A -SA-

q	Fuse assignment

508	Threaded connection (30) on electronics box, B1

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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

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

Fitting location, relay and fuse carrier 1 -SR1-

Get access to all wiring diagrams of the car

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

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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 A^{1) 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 A^{1) 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 A^{1) 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 A^{1) 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 A^{1) 3) 4)} 20 A²⁾	-	Fuel pump control unit -J538-	87
11	-	Fuse 11 on fuse holder B -SB11-	40 A²⁾ 50 A^{1) 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

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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

Get access to all wiring diagrams of the car

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

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

Get access to all wiring diagrams of the car

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

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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

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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

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1 -	Relay and fuse carrier 3 -SR3-

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

B -	not assigned

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

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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

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

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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

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AUDI TT 2015

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

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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

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

Fitting location, relay and fuse carrier 4 -SR4-

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1 -	Relay and fuse carrier 4 -SR4-

A -	Fuse holder F -SF-

q	Fuse assignment

B -	Fuse holder D -SD-

q	Fuse assignment

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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

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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

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AUDI TT 2015 Overview of earth points

Overview of earth points

Get access to all wiring diagrams of the car

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

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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

Get access to all wiring diagrams of the car

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

Get access to all wiring diagrams of the car

729	Earth point on rear left wheel housing

q	Specified torque: 9 Nm

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AUDI TT 2015 – Interface for special functions, (7G9) . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI TT 2015 - Data bus diagnostic interface - Interface control unit for vehicle location system - Fuse holder C

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

AUDI TT 2015 Overview of convertible roof control units, roadster

AUDI TT 2015 Fitting location, fresh air blower control unit J126

AUDI TT 2015 Fitting location, airbag control unit J234

AUDI TT 2015 Fitting location, electronically controlled damping control unit J250

AUDI TT 2015 Fitting location, Climatronic control unit J255

AUDI TT 2015 Fitting location, control unit in dash panel insert J285

AUDI TT 2015 Fitting location, driver door control unit J386

AUDI TT 2015 Fitting location, front passenger door control unit J387

AUDI TT 2015 Fitting location, headlight range control unit J431

AUDI TT 2015

AUDI TT 2015 Fitting location, entry and start authorisation control unit J518

AUDI TT 2015 Fitting location, digital sound package control unit J525

AUDI TT 2015 Fitting location, steering column electronics control unit J527

AUDI TT 2015 Fitting location, roof electronics control unit J528

AUDI TT 2015 Fitting location, data bus diagnostic interface J533

AUDI TT 2015 Fitting location, fuel pump control unit J538

AUDI TT 2015 Fitting location, chip card reader control unit J676

AUDI TT 2015 Fitting location, seat occupied recognition control unit J706

AUDI TT 2015 Fitting location, control unit for electronic steering column lock J764

AUDI TT 2015 Fitting location, control unit 1 for information electronics J794

AUDI TT 2015 Fitting location Main beam assist control unit J844

AUDI TT 2015 Fitting location, exhaust flap control unit J883

AUDI TT 2015 Fitting location, control unit for seat belt microphone J886

AUDI TT 2015 Fitting location, front camera for driver assist systems R242

AUDI TT 2015

AUDI TT 2015 Fitting location, cabriolet windbreak motor V186

AUDI TT 2015 Fitting location, convertible roof lock motor V223

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

AUDI TT 2015 Fitting location, convertible roof actuation control unit J256

AUDI TT 2015 Fitting location, battery monitor control unit J367

AUDI TT 2015 Fitting location, all-wheel drive control unit J492

AUDI TT 2015 Fitting location, Tyre Pressure Monitoring System control unit J502

AUDI TT 2015 Fitting location, lane change assist control unit J769

AUDI TT 2015 Fitting location, lane change assist control unit 2 J770

AUDI TT 2015 Fitting location Reversing camera system control unit J772

AUDI TT 2015 Fitting location, interface control unit for vehicle location system J843

AUDI TT 2015 Fitting location TV tuner R78

AUDI TT 2015 Fitting location, aerial amplifier for mobile telephone R86

AUDI TT 2015 Overview of fuses

AUDI TT 2015 Fitting location, fuse holder A SA

AUDI TT 2015 Fuse assignment on fuse holder A SA

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

AUDI TT 2015 Fuse assignment on fuse holder B SB

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

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

AUDI TT 2015

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

AUDI TT 2015 Fuse assignment on fuse holder F SF

AUDI TT 2015 Fuse assignment on fuse holder D SD

AUDI TT 2015 Overview of earth points

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