Audi TT Wiring diagram No.

25/ 1

St andard Equipm ent

2002 m . y.

Fuse Panel

Fuse Colors:
8 12 16 20
5 9 13 17 21
30 A - Green
1 3 6 10 14 18 22 25 A - White
2 4 7 11 15 19 23 20 A - Yellow
24 31 38 Res
15 A - Blue
10 A - Red
25 32 39 Res
7,5 A - Brow n
26 33 40 Res
5 A - Beige
27 34 41 Res
28 35 42 Res
29 36 43
30 37 44

Starting w ith fuse position 23, fuses in the fuse holder

A97--0119
are identified w ith 223 in the w iring diagram.

M icro Cent ral Elect ric Panel

Relay Locat ion:

1 -Dual Horn Relay, J4

2 -Load Reduction Relay, J59

4 -Fuel Pump (FP) Relay, J17

5 6
75X 30 30 30a 87F/Diesel
5 -Wiper/Washer Intermittent Relay, J31

6 -Wiper/Washer Intermittent Relay, J31

A B C
A97--0110

13 - Fold Relay Panel

Relay Locat ion:

4 -Fog Light Relay, J5

15 16 17 18
5 -Starting Interlock Relay, J207
14 1 2 3 4 5 6
10 -Rear Window Defogger Relay, J9

7 8 9 10 11 12 13

A97--0024

Edit ion 05/ 01

W42.USA.5702.07.21
No. 25/ 2 Wiring diagram Audi TT

M ain Fuse Box/ Battery

S138 S134 S164 S163 S162 Fuses Locat ion:

S131 - Safety fuse 1
S132 - Safety fuse 2
S133 - Safety fuse 3
S134 - Safety fuse 4
S138 - Safety fuse 5
S162 - Fuse 1 in fuse bracket/battery
S163 - Fuse 2 in fuse bracket/battery
S164 - Fuse 3 in fuse bracket/battery

A97--0116
S133 S132 S131

Edit ion 05/ 01

W42.USA.5702.07.21
Audi TT Wiring diagram No. 25/3
30 30
15 15
X X
31 31

ws = white
sw = black
ro = red
T14i/7 br = brown
gn = green
2,5 2,5 2,5 2,5 2,5 4,0 4,0 2,5 bl = blue
br br br br br br/sw br br
gr = grey
li = violet
ge = yellow
285 279 131 12 131 283 98 50 640 188 249 277 249 96

1 2 3 4 5 6 7 8 9 10 11 12 13 14
97-50036

T14i - Connector 14 pin, in engine compartment, left 131 - Ground connection -2-, in engine compartment wiring
harness
12 - Ground connection, in engine compartment, left 188 - Ground connection -3-, in A/C wiring harness

249 - Ground connection -2-, in wiring harness interior

50 - Ground connection, in luggage compartment, left
277 - Ground connector -3-, in wiring harness interior
96 - Ground connection -1-, in heated seats wiring harness
279 - Ground connector -5-, in wiring harness interior

98 - Ground connection, in rear lid wiring harness 283 - Ground connection 2, in wiring harness engine pre-wiring

285 - Ground connection -7- in wiring harness interior

640 - Ground connection -2-, in engine compartment, left

Edition 10/02 Ground Connections

W42.USA.5702.11.21
No. 25/4 Wiring diagram Audi TT
30 30
15 15
X X
31 31
75
5/85 6/30
2
J59
8/86 7/87

S1/75 30

0,5 4,0
sw/ro ro
11

B156 B157 S
11
5A
11a
321

1,5 4,0 2,5 2,5 2,5 1,5 1,5 0,35 0,35

ro ro ro ro ro ro ro sw/li sw/li

142 141 156 71

A98 3/30 7/30

D
2/75 5/50b 1/50 6/15 4/P 8/86s

44 444 444 44
2,5 2,5 2,5 2,5 1,0 2,5 0,5 2,5 0,5 0,5 0,5
ro ro ro sw/ro ro/sw ro/sw ro/sw sw ge/ro ge/ro sw

297 244 298

4 2
J17 / 50a
10 237
444 44
5
S10 S 237
J207 J429 10A 10A
6 8 3/4 10a 237a

444 44
0,5 2,5 0,35 0,5 0,5
br/gn ro/sw ro/gr ge/ro ge/ro

3/3 55 56
B138 J429 T6m/3
A2
1

ws = white F194
sw = black 2,5 0,5 4 2,5 2 2,5 1,5 0,5
ro = red sw/ro sw/ro ro/sw sw sw sw
br = brown
gn = green 159 287 50 288 318 295
bl = blue B
gr = grey 1,5 0,5
li = violet br br
ge = yellow
238 50 249

15 16 17 18 19 20 21 22 23 24 25 26 27 28
97-51035

B - Starter 50 - Ground connection, in luggage compartment, left

D - Ignition/Starter Switch
F194 - Clutch Pedal Position (CPP) Switch 238 - Ground connection -1-, in wiring harness interior
J17 - Fuel Pump (FP) Relay
J59 - Load Reduction Relay 249 - Ground connection -2-, in wiring harness interior
J207 - Starting Interlock Relay
J429 - Control module for central locking A2 - Plus connection (15), in instrument panel wiring harness
S10 - Fuse
S11 - Fuse A98 - Plus connector -4- (30), in instrument panel wiring harness
S237 - Fuse in fuse holder
B138 - Plus connector (X), in wiring harness, interior
T6m - Connector 6 pin, brown, in E-box plenum chamber
B156 - Plus connector (30a), in wiring harness interior

B157 - Plus connector -3- (15a), in wiring harness interior

4 - Roadster
44 - through 10.2001
444 - from 11.2001
Load Reduction Relay, Ignition/Starter Switch, Edition 10/02
Starting Interlock Relay W42.USA.5702.11.21
Audi TT Wiring diagram No. 25/ 5
30 30
15 15
X X
31 31
75
2/86 4/87
1
J4
3/85 1/30

30 30a S1/31 S1/71 S1/30ah S2/87h

33 33
J104 / 32 J104 / 1
J299 3 3
J104 / 47 J104 / 16
1/30
C
30 4,0
ro
332 333

16,0 16,0 6,0 6,0 6,0 2,5 2,5 2,5 0,35 1,5 1,5
sw ro ro/ws ro ro ro ro ro/gn br/bl ro/br sw/ge

300
5 4 3 2 1 T3e/3 T3e/2 T3e/1

S138 S134 S133 S132 S131 S164 S163 S162

150A 110A 30A 50A 50A 30A 30A 30A A72

A T5a/3 1,5 1,5

sw/ge sw/ge

2 2

H H7 1
H2 1

T5a/2

ws = w hite
sw = black
ro = red
br = brow n
gn = green
bl = blue
4,0 0,5 0,35 1,5 1,5 gr = grey
br br br br br
li = violet
ge = yellow
42 277 277 277 131 131

29 30 31 32 33 34 35 36 37 38 39 40 41 42
97-51036

A - Battery 42 - Ground connection, on steering column

C - Generator (GEN)
H - Signal horn activation 131 - Ground connection -2-, in engine compartment w iring
H2 - High Tone Horn harness
H7 - Low Tone Horn 277 - Ground connector -3-, in w iring harness interior
J4 - Dual Horn Relay
J104 - ABS Control M odule (w /EDL)
J299 - Secondary Air Injection (AIR) Pump Relay A72 - Connector (71), in instrument panel w iring harness
S131 - Safety fuse 1
S132 - Safety fuse 2
S133 - Safety fuse 3 3 - ABS M K20 w ith EDL/ASR/ESP
S134 - Safety fuse 4
33 - ABS M K60 w ith EDL/ASR/ESP
S138 - Safety fuse 5
S162 - Fuse -1- in fuse bracket/battery
S163 - Fuse -2- in fuse bracket/battery
S164 - Fuse -3- in fuse bracket/battery
T3e - Connector 3 pin, black, on M ain Fuse Box/Battery
T5a - Connector 5 pin, yellow, in steering w heel

Edit ion 11/ 01 M ain Fuse Box/ Battery, Signal Horn

W42.USA.5702.10.21
No. 25/ 6 Wiring diagram Audi TT
30 30
15 15
X X
31 31

315

0,35
ro/li

D2 A50
1 2

0,35 0,35 0,35

gn sw ro/li
30a
T32a/2 T32a/17 T32/23

K2 K117 J285 K132 K72

T32a/12 T32/7 T32/30

61 3 86s

0,35 0,35
bl ge/ro

A21

T4b/2

## #
0,5 0,35 0,5 0,5
bl ge/ro ge/ro ge/ro
ws = w hite D+ 26 27
sw = black
ro = red C 4/13
br = brow n J429
gn = green
0,35
bl = blue br/ws
gr = grey
li = violet
ge = yellow
269

43 44 45 46 47 48 49 50 51 52 53 54 55 56
97-51037

C - Generator (GEN) 269 - Ground connector (sensor ground) -1-, in instrument panel
D2 - Induction coil of antitheft immobilizer w iring harness
J285 - Control M odule w ith indicator unit in instrument panel A21 - Wire connection (86s), in instrument panel w iring harness
insert
J429 - Control module for central locking A50 - Plus connection (30a), in instrument panel w iring harness
K2 - Generator (GEN) Warning Light
K72 - Warning light for catalyst monitoring
K117 - Warning light for anti-theft immobilizer sensor 3 - Sensor ground output
K132 - Electronic Power Control (EPC) Warning Lamp # - to 11.2001
T4b - Connector 4 pin, in engine compartment, left ## - from 11.2001
T32 - Connector 32 pin, blue, on instrument cluster
T32a - Connector 32 pin, green, on instrument cluster

Inst rum ent Cluster, Warning Light s Edit ion 11/ 01

W42.USA.5702.10.21
Audi TT Wiring diagram No. 25/7
30 30
15 15
X X
31 31

A27
J220
54

0,35 0,35 0,35

bl/ws bl/ws bl/ws

T10x
/6

T32/3

G5 K16 G1 J285 K28 K83 K3

T32/9 T32/24 T32/5 T32/22 T32/10

0,35 0,35 4 0,35 0,35

li/sw li/sw li/ro gn/sw

C10
0,35
gn/sw
323
T14i/1
1,5 0,5
bl/ro gn/sw
G 444 3 3 1 2

G M
ws = white
G169 G6 F66 F1 sw = black
2 2 4 1
ro = red
br = brown
gn = green
bl = blue
44 4 gr = grey
0,35 0,35 0,5 0,5 1,5 0,5
br br br/ws br/ws br br/ws li = violet
ge = yellow
249 249 269 269 277 269

57 58 59 60 61 62 63 64 65 66 67 68 69 70
97-51038

C10 - Suppressor Filter 249 - Ground connection -2-, in wiring harness interior
F1 - Oil Pressure Switch
F66 - Engine Coolant Level (ECL) Warning Switch 269 - Ground connector (sensor ground) -1-, in instrument panel
G - Sender for fuel gauge wiring harness
G1 - Fuel Gauge 277 - Ground connector -3-, in wiring harness interior
G5 - Tachometer
G6 - Fuel Pump (FP)
G169 - Fuel Level Sensor 2 A27 - Wire connection (vehicle speed signal), in instrument panel
wiring harness
J220 - Motronic Engine Control Module (ECM)
J285 - Control Module with indicator unit in instrument panel
insert 4 - Vehicles with front wheel drive
K3 - Oil Pressure Warning Light 44 - Vehicles with all wheel drive
K16 - Fuel Reserve Warning Light 444 - Wiring inside fuel tank
K28 - Engine Coolant Level/Temperature (ECL/ECT) Warning
Light
K83 - Malfunction Indicator Lamp (MIL)
T10x - Connector 10 pin, orange, in E-box plenum chamber
T14i - Connector 14 pin, in engine compartment, left
T32 - Connector 32 pin, blue, on instrument cluster

Edition 10/02 Instrument Cluster, Oil Pressure Switch,

W42.USA.5702.11.21 Engine Coolant Level Warning Switch, Fuel Pump
No. 25/8 Wiring diagram Audi TT
30 30
15 15
X X
31 31

25 203

0,35 0,35
sw/li ws

15a 56a
T32/1 T32/17

Y2 K1 G21 J285 H3

T32/28 T32/31 T32a/31 T32a/30 T32/21

289

0,35 0,5 0,35 0,35 0,35

gn/ro sw/gn gn/ge gr/gn br/ge

A108 211
T14i/3 T14i/2 B154

0,5 1,0 0,35 0,5

ws/bl sw/ws gn/ge br/ge

228
T10d/6
2 1 0,35
gn/ge
ws = white
sw = black G22
3
ro = red R2
br = brown
gn = green
bl = blue 0,35
1,0 4,0 gn/ge
gr = grey br br
li = violet 4
ge = yellow
283 42 279 F2
71 72 73 74 75 76 77 78 79 80 81 82 83 84
97-50041

C10 - Suppressor Filter 42 - Ground connection, on steering column

F2 - Door Contact Switch - Driver‘s side
G21 - Speedometer 279 - Ground connector -5-, in wiring harness interior
G22 - Speedometer Vehicle Speed Sensor (VSS)
H3 - Warning Buzzer 283 - Ground connection 2, in wiring harness engine pre-wiring
J285 - Control Module with indicator unit in instrument panel
insert A108 - Connector (speed signal), in instrument panel wiring harness
K1 - Headlight High Beam Indicator Light
B154 - Connector -1- (TK), in wiring harness interior
T10d - Connector 10 pin, brown, connector station A pillar, left
T14i - Connector 14 pin, in engine compartment, left R2 - Wire connection (door contact switch, left), in power
T32 - Connector 32 pin, blue, on instrument cluster window/central locking system and door contact switch
T32a - Connector 32 pin, green, on instrument cluster wiring harness
Y2 - Digital Clock

Instrument Cluster, Speedometer Vehicle Speed Sensor Edition 10/02

W42.USA.5702.11.21
Audi TT Wiring diagram No. 25/9
30 30
15 15
X X
31 31

200 350 186

0,35 0,35 0,35

gr/ro li/ge gr/sw

58R 58L
T32/26 T32/12 T32/27

K14 4 + 28,8 °C 4 G106 K4 K33 J285 K32

T32a/13 T32a/29 T32/29 T32/2

J492 E87 0,35 0,35 0,35

T8d/4 A/8 ro/bl bl/br ro

4
0,5 0,35 0,35
br/ro br/ro br/ge

0,35 0,35
A115 T12a/5 T12a/12 ro ge

0,35 0,35 0,35

br/ro br/ge ro/bl T2ae T2ae
/1 /2
B/1

1 2 E87 1
t°
F9 G17 F34 N13 ws = white
2 1 2 sw = black
ro = red
br = brown
gn = green
0,5 0,5 0,5 0,5 bl = blue
br br/ws br br gr = grey
li = violet
ge = yellow
277 112 131 249

85 86 87 88 89 90 91 92 93 94 95 96 97 98
97-50710

E87 - A/C Control Head 112 - Ground connection -2-, in A/C wiring harness
F9 - Parking Brake Warning Light Switch
F34 - Brake Fluid Level Warning Switch 131 - Ground connection -2-, in engine compartment wiring
G17 - Outside Air Temperature Sensor harness
G106 - Outside Air Temperature Display
J285 - Control Module with indicator unit in instrument panel 249 - Ground connection -2-, in wiring harness interior
insert
J492 - Control module for all wheel drive 277 - Ground connector -3-, in wiring harness interior
K4 - Park Light Indicator Light
K14 - Parking Brake Indicator Light
K32 - Brake Pad Wear Indicator Light A115 - Connection (parking brake control) in instrument panel
wiring harness
K33 - Brake Fluid Level Warning Light
N13 - Left Brake Pad Wear Indicator (Shear Element)
T2ae - Connector 2 pin, on firewall, left
T8d - Connector 8 pin, on Control module for all wheel drive 4 - Vehicles with all-wheel drive
T12a - Connector 12 pin, behind instrument panel, right
T32 - Connector 32 pin, blue, on instrument cluster
T32a - Connector 32 pin, green, on instrument cluster
Edition 10/01 Instrument Cluster, Parking Brake Warning Light Switch,
W42.USA.5702.09.21 Brake Fluid Level Warning Switch, Outside Air Temperature Sensor
No. 25/10 Wiring diagram Audi TT
30 30
15 15
X X
31 31

J285

T32a/28
K

0,35
gr/ws

A76

## ### 444 #
0,5 0,5 0,35 0,5 0,35 0,5 0,35 0,35 0,35 0,35 0,5 0,5
gr/ws gr/ws gr/ws gr/ws gr/ws gr/ws gr/ws gr/ws gr/ws gr/ws gr/ws gr/ws

311
39 2 67 4/7 1 1 2 T8d/5 T8/3
J104 T12a/1 J104 T10x/1 J234 J429 G209 G303 J431 J492 R
ws = white 4 44
sw = black
ro = red 0,35 0,35
br = brown gr/ws gr/ws
gn = green
bl = blue A1 43
gr = grey E87 J220
li = violet
ge = yellow

99 100 101 102 103 104 105 106 107 108 109 110 111 112
97-50711

E87 - A/C Control Head A76 - Connector (K-diagnosis wire), in instrument panel wiring
G209 - Ultra-sound sensor for anti-theft warning harness
G303 - Radar Interior Monitoring Control Module 1
J104 - ABS Control Module (w/EDL)
4 - Coupé
J220 - Motronic Engine Control Module (ECM)
J234 - Airbag Control Module 44 - Roadster
J285 - Control Module with indicator unit in instrument panel 444 - Vehicles with Automatic Headlight Beam Adjusting
insert # - Vehicles with all-wheel drive
J429 - Control module for central locking ## - ABS MK20 with EDL/ASR/ESP
J431 - Control module for Headlight Beam Adjusting ### - ABS MK60 with EDL/ASR/ESP
J492 - Control module for all wheel drive
R - Radio
T8 - Connector 8 pin, black, connector radio III
T8d - Connector 8 pin, on Control module for all wheel drive
T10x - Connector 10 pin, orange, in E-box plenum chamber
T12a - Connector 12 pin, behind instrument panel, right
T32a - Connector 32 pin, green, on instrument cluster

Instrument Cluster, Connector (K-diagnosis wire) Edition 10/01

for Data Link Connector (DLC) W42.USA.5702.09.21
Audi TT Wiring diagram No. 25/ 11
30 30
15 15
X X
31 31

R R
T6k/7 T6k/12

0,35 · 0,35 ·
or/li or/br

J429 J234 A148 A149

4/16 68

0,35 0,35 0,35 · 0,35 ·

ws/sw br/gn or/li or/br

CAN-H CAN-L
T32a/6 T32a/10 T32b/5 T32b/6

K127 G3 K75 K47 J285 K86

T32/8 T32a T32/32 T32a/18 T32a/19

/21 J104 J
104 J
104
24 19 20

0,35 0,35
3
0,35
33
0,35 0,5
33
0,35 · 0,35
3
0,35 · 0,35
3
li gr/ws gr/sw gr/sw gr/sw or/sw or/sw or/br or/br

J5 A121 A122
22 44
T14i/4 J104 J104
33 33 33
0,5 0,5 0,5 0,35 0,35 0,35 0,35
li gr/sw gr/sw or/sw or/sw or/br or/br

1 6 13 11 15
G2 E256 J104 J104 J104
T10a/2 T10a/3
ws = w hite
0,35 0,35 sw = black
or/sw or/br ro = red
br = brow n
60 58
gn = green
J220 J220 bl = blue
gr = grey
li = violet
ge = yellow
or = orange
113 114 115 116 117 118 119 120 121 122 123 124 125 126
97-50044

E256 - ASR/ESP Button A121 - Connection (high bus) in instrument panel w iring harness
G2 - Engine Coolant Temperature (ECT) Sensor
G3 - Engine Coolant Temperature (ECT) Gauge A122 - Connection (low bus) in instrument panel w iring harness
J104 - ABS Control M odule (w /EDL)
J220 - M otronic Engine Control M odule (ECM )
J285 - Control M odule w ith indicator unit in instrument panel A148 - Connection (high bus, navigation), in instrument panel w iring
insert harness
J234 - Airbag Control M odule A149 - Connection (low bus, navigation), in instrument panel w iring
J429 - Control module for central locking harness
K47 - ABS Warning Light
K75 - Airbag M alfunction Indicator Lamp (M IL) J5 - Wire connection -2-, in ABS w iring harness, near anti-slip
K86 - Traction Control Indicator Light control sw itch
K127 - Indicator light for open trunk
R - Radio
T6k - Connector 6 pin, green, connector radio I-2 · - CAN-Bus (Data-Bus)
T10a - Connector 10 pin, w hite, in E-box plenum chamber 3 - ABS M K20 w ith EDL/ASR/ESP
T14i - Connector 14 pin, in engine compartment, left
33 - ABS M K60 w ith EDL/ASR/ESP
T32 - Connector 32 pin, blue, on instrument cluster
T32a - Connector 32 pin, green, on instrument cluster
T32b - Connector 32 pin, gray, on instrument cluster
Edit ion 11/ 01 Inst rum ent Cluster, Engine Coolant Tem perature Gauge
W42.USA.5702.10.21
No. 25/ 12 Wiring diagram Audi TT
30 30
15 15
X X
31 31

E87 E87
B13 A5

L40
0,35 0,35 0,35
ge/bl li/ge gr/bl

144 154 T12a/7 T17/9 A116 T17/10

0,35 0,35 0,35 0,35 0,35 0,35 0,35
sw/ws sw/gn ge/bl li/ge li/ge gr/bl gr/bl

A11
BL BR 58d
T32/18 T32a/7 T32a/11 T32/12 E87 T32/15

K65 K94 J285 K19

T32/20 T32a/27
58s

212 355 T8/6

0,35 0,5 0,5 0,5 0,35
gr/bl gr/bl gr/bl gr/bl ge

B145

T8/8 T8/7 T6i/2

0,5 1,5 0,35
gr/bl ro/ws ge

1
305
A19
ws = w hite E24
sw = black 2
ro = red
br = brow n 0,35
gn = green br
bl = blue T6i/1
gr = grey
li = violet 0,5 0,5 0,5 2,5 0,35
gr/bl gr/bl gr/bl br br
ge = yellow
45 249
166 284 304

127 128 129 130 131 132 133 134 135 136 137 138 139 140
97-50045

E24 - Left Seat Belt Sw itch 45 - Ground connection, behind instrument panel, center
E87 - A/C Control Head
J285 - Control M odule w ith indicator unit in instrument panel 249 - Ground connection -2-, in w iring harness interior
insert
K19 - Seat Belt Warning Light A19 - Wire connection (58s), in instrument panel w iring harness
K65 - Left Turn Signal Indicator Light
K94 - Right Turn Signal Indicator Light A116 - Connection -2- (58d) in instrument panel w iring harness
T6i - Connector 6 pin, below driver‘s seat
T8 - Connector 8 pin, black, connector radio III B145 - Plus connector (58s), in w iring harness interior
T12a - Connector 12 pin, behind instrument panel, right
T17 - Connector 17 pin, behind instrument panel L40 - Wire connection -2- (A/C Pressure Sw itch), in Climatronic
T32 - Connector 32 pin, blue, on instrument cluster w iring harness
T32a - Connector 32 pin, green, on instrument cluster

Inst rum ent Cluster, Turn Signal Indicator Light s, Edit ion 11/ 01
Connector Radio, Seat Belt Warning Light W42.USA.5702.10.21
Audi TT Wiring diagram No. 25/ 13
30 30
15 15
X X
31 31

22 21 160 179

1,5 2,5 1,5 1,0

ro ro ge/ro sw/ws/gn

2/30 1/30 7/56 4/P E19 5/49a E2

E4 12/56a 8/56b 9/PL 10/PR 3/BL 11/BR

1,5 1,5 1,0 1,0

ws/gn ge/gr sw/ws sw/gn

164

B141 A6 A5

1,5 1,5 0,35 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 0,35
ws/gn ws/gn sw/ws sw/ws sw/ws sw/ws sw/ws sw/gn sw/gn sw/gn sw/gn sw/gn

189 205 127 169 254 263 170 130

2 1 2 1

M18 M5 M19 M7 ws = w hite

1 2 1 2 sw = black
ro = red
br = brow n
gn = green
1,0 1,0 1,0 1,0 bl = blue
br br br br gr = grey
li = violet
ge = yellow
131 131 131 131

141 142 143 144 145 146 147 148 149 150 151 152 153 154
97-51039

E2 - Turn Signal Sw itch 131 - Ground connection -2-, in engine compartment w iring
E4 - Headlight Dimmer/Flasher Sw itch harness
E19 - Park Light Sw itch A5 - Plus connection (right turn signal), in instrument panel
M5 - Left Front Turn Signal Light w iring harness
M7 - Right Front Turn Signal Light A6 - Plus connection (left turn signal), in instrument panel w iring
M 18 - Left, Side Turn Signal Light harness
M 19 - Right, Side Turn Signal Light B141 - Plus connector -1- (56a), in w iring harness interior

Edit ion 05/ 01 Turn Signal Sw it ch, Headlight Dim m er/ Flasher Sw it ch,
W42.USA.5702.07.21 Park Light Sw it ch, Front Turn Signal Light
No. 25/ 14 Wiring diagram Audi TT
30 30
15 15
X X
31 31

143

1,5
ge/gr

236

S
236
23 17 15A
236a
1,5 2,5 1,0
ro sw/ro sw/ws

E1 15/30 1/XZ E23 2/XR K13 K17 L9 L40

13/58L 16/58 14/58R 7/56 4/56 8/NL 9/NSL 17/58s 10/31

0,5 0,5 0,5 1,5 1,5 1,5 0,5

gr/br gn/gr gr/li ge/gn ge/ro gr/gn gr/bl

246 143 186 128

A51
B139 B140

ws = w hite 0,5 0,5 1,5 1,5

sw = black gr/br gr/li ge/gn ge/gn
ro = red
br = brow n 187 201 223 191
gn = green
bl = blue
gr = grey 0,5
br
li = violet
ge = yellow
277

155 156 157 158 159 160 161 162 163 164 165 166 167 168
97-51040

E1 - Light Sw itch 277 - Ground connector -3-, in w iring harness interior

E23 - Fog Light Sw itch
K13 - Rear Fog Light Indicator Light A51 - Wire connection (56), in instrument panel w iring harness
K17 - Fog Light Indicator Light
L9 - Headlight Sw itch Light B139 - Connector (PL), in w iring harness, interior
L40 - Front And Rear Fog Light Sw itch Light
S236 - Fuse in fuse holder B140 - Connector (PR), in w iring harness, interior

Light Sw it ch, Fog Light Sw it ch Edit ion 05/ 01

W42.USA.5702.07.21
Audi TT Wiring diagram No. 25/15
30 30
15 15
X X
31 31

299 272

1,0 1,0
ro/gn sw/ws

10/30 E3 2/75
0 1

5/WL 7/WR 6/ZV 8/AB 4/58 9/31 3/49a

1,0 1,0 0,5 0,35 0,5 1,0

sw/ws sw/gn sw/gn ge sw/gn sw/ws/gn

145 153 290 148

A49

A125

0,5 0,35 0,35 0,35

sw/ge ge ge ge

1/9 4/4
J429 J429
C22 ws = white
sw = black
J220 ro = red
67 T10a br = brown
/9 gn = green
0,35
0,35
ge
0,5 bl = blue
gn/li br
gr = grey
li = violet
69
ge = yellow
J234 277

169 170 171 172 173 174 175 176 177 178 179 180 181 182
97-50048

C22 - Airbag Suppresser 277 - Ground connector -3-, in wiring harness interior
E3 - Emergency Flasher Switch
J220 - Motronic Engine Control Module (ECM) A49 - Wire connection -1-, in instrument panel wiring harness
J234 - Airbag Control Module
J429 - Control module for central locking A125 - Connection (crash signal) in instrument panel wiring
T10a - Connector 10 pin, white, in E-box plenum chamber harness

Edition 12/02 Emergency Flasher Switch

W42.USA.5702.12.21
No. 25/16 Wiring diagram Audi TT
30 30
15 15
X X
31 31

155 141 160

0,5 1,5 1,5

gr/br ws/gn ge/gn

4/86 8/30 223 19 21

4 S223 S19 S
21
5A 10A 15A
J5
6/85 2/87 223a 19a 21a

1,0 0,5 1,5

gr ws gr/gn

242 204 161

199 91 255

1,0 1,5 0,35 0,5 0,5

gr/ge gr/ge gr/sw gr/sw gr/sw

C25 A84

1,0 0,5 1,5 1,5

gr/ge gr/sw ws/sw ge/sw

NL 58L 56a 56b

T10ac/3 T10ac/2 T10ac/1 T10ac/10
ws = white L22 M1 M30 M29
sw = black
ro = red
br = brown T10ac/9 T10ac/4
gn = green 31 31
bl = blue
gr = grey
1,5 1,5
li = violet br br
ge = yellow
131 131

183 184 185 186 187 188 189 190 191 192 193 194 195 196
97-51041

J5 - Fog Light Relay 131 - Ground connection -2-, in engine compartment wiring
L22 - Left Front Fog Light harness
M1 - Left Parking Light A84 - Connector (58L), in instrument panel wiring harness
M29 - Left Low Beam Headlight
M30 - Left High Beam Headlight C25 - Wire connection (fog lights), in front light wiring harness
S19 - Fuse
S21 - Fuse
S223 - Fuse in fuse holder
T10ac - Connector 10 pin, on headlight, left

Fog Light Relay, Left Headlight, Fuses Edition 12/02

W42.USA.5702.12.21
Audi TT Wiring diagram No. 25/17
30 30
15 15
X X
31 31

157 142

0,5 1,5
gr/li ws/gn

22 18

S22 S
18
5A 10A
22a 18a

87 262 74 184

0,35 0,5 0,5 0,35 0,5 1,5

gr/ro gr/ro gr/ro ws ws ws

A85 B142

184 222

1,0 0,5 1,5 1,5

gr/ge gr/ro ws ge

NL 58R 56a 56b

T10ad/3 T10ad/2 T10ad/1 T10ad/10

L23 M3 M32 M31 ws = white

sw = black
T10ad/9 T10ad/4 ro = red
31 31 br = brown
gn = green
bl = blue
1,5 1,5 gr = grey
br br
li = violet
ge = yellow
131 131

197 198 199 200 201 202 203 204 205 206 207 208 209 210
97-50050

L23 - Right Front Fog Light 131 - Ground connection -2-, in engine compartment wiring
M3 - Right Parking Light harness
M31 - Right Low Beam Headlight A85 - Connector (58R), in instrument panel wiring harness
M32 - Right High Beam Headlight
S18 - Fuse
B142 - Plus connector -2- (56a), in wiring harness interior
S22 - Fuse
T10ad - Connector 10 pin, on headlight, right

Edition 12/02 Right Headlight, Fuses

W42.USA.5702.12.21
No. 25/18 Wiring diagram Audi TT
30 30
15 15
X X
31 31

159

1,5
ge/gn

20

S
20
15A
20a
82

0,35
gr/gn

1/58 E102

E20 2/31 6/58s

L54 5/31 3/G 4/56b
207

0,5 1,0 1,0 1,5 1,5

gr/bl br/ws ge ge ge

129 A103

A114

1,0 1,0 1,0 1,0

br/ws ge br/ws ge

G 56b G 56b
T10ac T10ac T10ad T10ad
/7 /8 /7 /8

M M
ws = white
sw = black V48 V49
T10ac/5 T10ad/5
ro = red 31 31
br = brown
gn = green
bl = blue
gr = grey 1,0 1,0 1,0 1,0 1,0
br/ws br br br br
li = violet
ge = yellow
269 249 199 42 199 199

211 212 213 214 215 216 217 218 219 220 221 222 223 224
97-50051

E20 - Instrument Panel Light Dimmer Switch 42 - Ground connection, on steering column
E102 - Headlight Adjuster
L54 - Headlight Adjuster Control Light 199 - Ground connection -3-, in instrument panel wiring harness
S20 - Fuse
T10ac - Connector 10 pin, on headlight, left 249 - Ground connection -2-, in wiring harness interior
T10ad - Connector 10 pin, on headlight, right
V48 - Left Headlight Beam Adjusting Motor 269 - Ground connector (sensor ground) -1-, in instrument panel
V49 - Right Headlight Beam Adjusting Motor wiring harness
A103 - Connector -2- (56), in instrument panel wiring harness

A114 - Connection (Headlight adjusting), in instrument panel

wiring harness

Headlight Adjuster, Headlight Beam Adjusting Motors Edition 12/02

W42.USA.5702.12.21
Audi TT Wiring diagram No. 25/19
30 30
15 15
X X
31 31
J31 5 6

2/53b 13/15 1/V 8/53 12/INT 7/53c 3/Pot. 17/31

1,5 0,35 1,5 1,5 0,5

sw/gr gn/ge ws/gn gn/ro gn/li

80 229
A96 A97

1,5 1,5 1,5 1,5 1,5

sw/gr sw/gr br/sw gn/ro gn/ro

274

8/53a 3/53e 7/INT 4/53c

TOJ12 H2 01
6/53b 1/53
E22

1,0 1,5
gn/ge ws/gn

229

1 5

M
V5 E38
2 6

ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
1,5 0,5 0,5 gr = grey
br br br
li = violet
ge = yellow
249 277 277

225 226 227 228 229 230 231 232 233 234 235 236 237 238
97-51042

E22 - Windshield Wiper/Washer Switch 249 - Ground connection -2-, in wiring harness interior
E38 - Windshield Wiper Intermittent Regulator
J31 - Wiper/Washer Intermittent Relay 277 - Ground connector -3-, in wiring harness interior
V5 - Windshield Washer Pump
A96 - Connector (53a), in instrument panel wiring harness

A97 - Connector (53c), in instrument panel wiring harness

Edition 10/01 Wiper/Washer Intermittent Relay, Windshield Wiper/Washer Switch,

W42.USA.5702.09.21 Windshield Washer Pump
No. 25/20 Wiring diagram Audi TT
30 30
15 15
X X
31 31

5 6
J31
4/ST1 5/ST2 11/31b 15/30a

17 156
2,5 0,5 0,5
ro gn/gr gr/ge

233 3 4
S233 S3 S4
1,5 1,5 1,5 2,5 4 20A 5A 5A
li/gn gn/ge gn/sw gn/ro 233a 3a 4a

4/53 2/53b 3/53e

M
V
5/31 1/53a

0,5 0,5
gr gr/gn

A37

1,0 0,5 1,0

gr gr gr/gn

183
1
1 1

ws = white X X
sw = black W6 2 2
2
ro = red
br = brown
gn = green
1,5 2,5 0,5 0,5 0,5
bl = blue br br br br br
gr = grey
li = violet
ge = yellow
131 52 98 277 98 98

239 240 241 242 243 244 245 246 247 248 249 250 251 252
97-51043

J31 - Wiper/Washer Intermittent Relay 52 - Ground connection, in rear lid, left

S3 - Fuse
S4 - Fuse 98 - Ground connection, in rear lid wiring harness
S233 - Fuse in fuse holder
V - Windshield Wiper Motor 131 - Ground connection -2-, in engine compartment wiring
W6 - Glove Compartment Light harness
X - License Plate Light 277 - Ground connector -3-, in wiring harness interior

A37 - Wire connection (58a), in instrument panel wiring harness

4 - Vehicles with Headlight Washer

Wiper/Washer Intermittent Relay, Windshield Wiper Motor, Edition 10/01

Glove Compartment Light, License Plate Light, Fuses W42.USA.5702.09.21
Audi TT Wiring diagram No. 25/21
30 30
15 15
X X
31 31

J220 1,0 1,0

56 ro/br ws/ge
291

0,35 1 3
1,0
sw/ro sw/gn
C10 F F47
4 2
T10e/4 T10e/5 T10x/3

1,0 1,0 1,0 1,0 0,35 1,0

ro/sw ro/br ro/sw sw/bl ws/ge ro/gn

311 285 55
B131
J220 1

F4
C10 2

1,0 1,0 0,5 1,0

ro/sw ro/br ro/sw br/sw

J508 / 2 **
J104 / 41 ** *
J492 T10x/10
T8d/3
146 188 202 152
B185
1,0 0,5 1,0 0,35 1,0 * 0,5 1,0 1,0
sw/ws gr/sw ro/br ro/br ro/br gr/ro sw/gn sw/bl

A87

1,0 1,0 1,0 1,0

sw/bl ro/sw sw/bl sw/bl

ws = white
6/RF 5/BL 1/58L 2/54L 1/54 2/54R 1/58R 5/BR 6/RF
sw = black
M16 M6 M4 M9 M25 M10 M2 M8 M17 ro = red
br = brown
gn = green
4/31 2/31 4/31 bl = blue
gr = grey
1,0 0,35 1,0
br br br li = violet
ge = yellow
238 98 238

253 254 255 256 257 258 259 260 261 262 263 264 265 266
97-50712

C10 - Suppressor Filter 98 - Ground connection, in rear lid wiring harness

F - Brake Light Switch
F4 - Back-Up Light Switch 238 - Ground connection -1-, in wiring harness interior
F47 - Brake Pedal Switch (Cruise Control/Diesel Direct Fuel
Injection)
A87 - Connector (RF), in instrument panel wiring harness
J104 - ABS Control Module (w/EDL)
J220 - Motronic Engine Control Module (ECM)
J492 - Control module for all wheel drive B131 - Connector (54), in wiring harness interior
J508 - Brake light disable relay (ESP)
M2 - Right Tail Light B185 - Connection 2 (54) in passenger compartment wiring harness
M4 - Left Tail Light
M6 - Left Rear Turn Signal Light * - Vehicles with all-wheel drive
M8 - Right Rear Turn Signal Light
** - ABS MK20 with EDL/ASR/ESP
M9 - Left Brake Light
M10 - Right Brake Light *** - ABS MK60 with EDL/ASR/ESP
M16 - Left Back-Up Light
M17 - Right Back-Up Light
M25 - High-mount Brake Light
T8d - Connector 8 pin, on Control module for all wheel drive
T10e - Connector 10 pin, black, in E-box plenum chamber
T10x - Connector 10 pin, orange, in E-box plenum chamber
Edition 12/02 Tail Light, Brake Light, Rear Fog Light
W42.USA.5702.12.21
No. 25/22 Wiring diagram Audi TT
30 30
15 15
X X
31 31

75x

1,5 10,0
sw/ge sw/ge

1 2 224 225 226

S1 S2 S224 S225 S226

10A 10A 20A 25A 20A
1a 2a 224a 225a 226a

1,0 1,0 1,5 2,5 2,5

sw/br sw/ws sw/gr sw/bl sw/gn
A81
179 226 282

1,0 1,0 1,0 1,0

sw/br sw/br sw/br sw/br

T2k/1 T2l/1 T10w T10z/5 T17/1

/5

1,0 1,0 2,5

sw/br sw/br sw/bl

L59
Z4 Z5
0,35
sw/bl

Z20 Z21 C14

E87

ws = white T2k/2 T2l/2

sw = black
ro = red
br = brown
gn = green
bl = blue
1,0 1,0
gr = grey br br
li = violet
ge = yellow
131 131

267 268 269 270 271 272 273 274 275 276 277 278 279 280
97-50055

E87 - A/C Control Head 131 - Ground connection -2-, in engine compartment wiring
S1 - Fuse harness
S2 - Fuse A81 - Connector -2- (X), in instrument panel wiring harness
S224 - Fuse in fuse holder
S225 - Fuse in fuse holder L59 - Plus connection (30), in wiring harness heater
S226 - Fuse in fuse holder
T2k - Connector 2 pin, black, on engine hood
T2l - Connector 2 pin, black, on engine hood
T10w - Connector 10 pin, blue, connector station A pillar, left
T10z - Connector 10 pin, blue, connector station A pillar, right
T17 - Connector 17 pin, behind instrument panel
Z4 - Heated outside mirror, driver side
Z5 - Heated outside mirror, passenger side
Z20 - Left Washer Nozzle Heater
Z21 - Right Washer Nozzle Heater

Washer Nozzle Heater, Fuses Edition 12/02

W42.USA.5702.12.21
Audi TT Wiring diagram No. 25/23
30 30
15 15
X X
31 31

24

2,5
sw

5 6 7 231

S5 S6 S7 S231
7,5A 5A 10A 5A
5a 6a 7a 231a

444
0,5 0,35 1,0 1,0
sw/bl sw/bl sw/gn sw/gr

B135 B149
4/3 T8d/1
J429 J492
1,0 0,5 0,5 0,5 1,0 0,5
sw/bl sw/bl sw/gn sw/gn sw/gn sw/gn
278 130
260 337 77 176 265 310
2,5 0,5
sw/gn gr/bl

5 1

E15
6 2

T6n/4 T6n/3
18
44 4
2,5 2,5 0,5 2,5 2,5 2,5 2,5
ws ws sw/ro ws/sw ws/bl ws/bl ws/sw

290
+ 6 8 5 1 1
10 # ##
4 44 44 44
Z 24
J429 J9 Z1 Z1 ws = white
-- 5/13 4 2 2 2 sw = black
ro = red
0,35 0,5 2,5 2,5 2,5 br = brown
br/sw br/sw ws br br
gn = green
282 T6o/3 T6o/4 bl = blue
gr = grey
2,5 0,5 2,5 2,5
br br br br li = violet
Q49 ge = yellow
98 277 284 284

281 282 283 284 285 286 287 288 289 290 291 292 293 294
97-50061

E15 - Rear Window Defogger Switch 98 - Ground connection, in rear lid wiring harness
J9 - Rear Window Defogger Relay
J429 - Control module for central locking 277 - Ground connector -3-, in wiring harness interior
J492 - Control module for all wheel drive
S5 - Fuse 284 - Ground connection -6- in wiring harness interior
S6 - Fuse
S7 - Fuse B135 - Connector (15a), in wiring harness interior
S231 - Fuse in fuse holder
T6n - Connector 6 pin, Hardtop left B149 - Plus connector -2- (15a), in wiring harness interior
T6o - Connector 6 pin, Hardtop right
Q49 - Connection (closed), in wiring harness interior
T8d - Connector 8 pin, on Control module for all wheel drive
Z1 - Heated rear window
Z24 - Rear Window Defogger With Window Antenna 4 - Coupé
44 - Roadster
444 - Vehicles with all-wheel drive
# - Softtop
## - Hardtop

Edition 12/01 Heated Rear Window, Fuses

W42.USA.5702.12.21
No. 25/24 Wiring diagram Audi TT
30 30
15 15
X X
31 31

27 16 18
0,5 2,5 # 2,5 ##
sw ro ro a

9 10 237 239 240 241 242 238

S9 S10 S237 S239 S240 S241 S242 S 238

5A 15A 20A 15A 20A 15A 20A 15A
9a 10a 237a 239a 240a 241a 242a 238a

131

0,5 2,5
# 2,5
## 1,0 1,5 1,5 0,5 4,0 1,5
sw/gr ro/gn ro/gn ro/gn ro/br ro/gr gr/bl ro/ws ro/ge

169 40
T6m/4 T2p/2 1/11
J429
1,5
ro/gn

A36 D78 A46

0,35 0,35 1,5

sw/gr ro/gn ro/ws

136
62 2/30a
J104 / 4 4 4 J220
J104 / 44 4 U1 L28 L15
1/31

ws = white
sw = black
ro = red T2p/1
br = brown
gn = green
bl = blue 1,5 0,5
gr = grey br br
li = violet
ge = yellow
277 277

295 296 297 298 299 300 301 302 303 304 305 306 307 308
97-50062

J104 - ABS Control Module (w/EDL) 277 - Ground connector -3-, in wiring harness interior
J220 - Motronic Engine Control Module (ECM)
J429 - Control module for central locking
A36 - Wire connection (75a), in instrument panel wiring harness
L15 - Ashtray Light
L28 - Cigarette Lighter Light
S9 - Fuse A46 - Plus connection (30-from radio), in instrument panel wiring
S10 - Fuse harness
S237 - Fuse 37 in fuse holder D78 - Plus connection -1- (30a), in engine compartment wiring
S238 - Fuse in fuse holder harness
S239 - Fuse in fuse holder
S240 - Fuse in fuse holder
S241 - Fuse in fuse holder
4 - ABS MK20 with EDL/ASR/ESP
S242 - Fuse in fuse holder
T2p - Connector 2 pin, behind console 44 - ABS MK60 with EDL/ASR/ESP
T6m - Connector 6 pin, brown, in E-box plenum chamber # - through 10.2001
U1 - Cigarette Lighter ## - from 11.2001

Cigarette Lighter, Fuses Edition 12/01

W42.USA.5702.12.21
Audi TT Wiring diagram No. 25/ 25
30 30
15 15
X X
31 31

30 25 16

a 6,0 1,5 1,5

ro sw ro

12 13 14 15 229 244

S12 S13 S14 S15 S229 S244

7,5A 10A 10A 5A 15A 15A
12a 13a 14a 15a 229a 244a

0,5 1,0 1,5 0,35 1,5 1,5

ro/ws ro/br ro/sw ro/li sw/li ro/gr

256 49
4
E94

A1 B111 A139

292

0,5 0,5 1,5 1,5

ro/ws sw/gn ro/sw sw/li

30 15
1/7
T16 T16/1 J429
/16
T6m/1

1,0
sw

3
ws = w hite
J220 sw = black
T16 T16 T16/7
/4 /5 ro = red
31 31 K br = brow n
0,5 0,5 0,5
gn = green
br br gr/ws bl = blue
gr = grey
99
li = violet
ge = yellow
277 277

309 310 311 312 313 314 315 316 317 318 319 320 321 322
97-51044

E94 - Adjuster for heated driver’s seat 277 - Ground connector -3-, in w iring harness interior
J220 - M otronic Engine Control M odule (ECM )
J429 - Control module for central locking A1 - Plus connection (30a), in instrument panel w iring harness
S12 - Fuse
S13 - Fuse A139 - Connection 3 (15), in instrument panel w iring harness
S14 - Fuse
S15 - Fuse
S229 - Fuse in fuse holder B111 - Connector (30a), in w iring harness interior
S244 - Fuse in fuse holder
T6m - Connector 6 pin, brow n, in E-box plenum chamber
T16 - Connector 16 pin, black, Data Link Connector (DLC), below
storage compartment, driver‘s side

Edit ion 05/ 01 Dat a Link Connector (DLC), Fuses

W42.USA.5702.07.21
No. 25/ 26 Wiring diagram Audi TT
30 30
15 15
X X
31 31

J17
23/87

87F
A99
4,0 4,0 4,0 4,0 4,0
bl bl bl bl bl

228 232 234 243

S228 S232 S234 S243

15A 10A 10A 10A
228a 232a 234a 243a

J293

T4f/1 T4f/3

1,5 1,5 1,0 2,5 6,0 2,5

bl/ro ro/li ge/sw bl/ge ro/ws ro

65 31

A68
T14i/5 A100
T6m/5 A68

1,0 1,5 2,5 2,5

ro/li ge/sw bl/ge ro

34
D140 D80
T14i/6
ws = w hite
sw = black
ro = red 0,5
br = brow n ge/sw
gn = green
bl = blue
gr = grey D22
li = violet
ge = yellow

323 324 325 326 327 328 329 330 331 332 333 334 335 336
97-50064

J17 - Fuel Pump (FP) Relay A68 - Connector (30, A/C), in instrument panel w iring harness
J293 - Coolant FC (Fan Control) Control M odule, in engine
compartment, left front A99 - Connector -1- (87), in instrument panel w iring harness
S228 - Fuse in fuse holder
S232 - Fuse in fuse holder A100 - Connector -2- (87), in instrument panel w iring harness
S234 - Fuse in fuse holder
S243 - Fuse in fuse holder D22 - Connector (over fuse 234), in w iring harness front, right
T4f - Connector 4 pin, connector B on J293
T6m - Connector 6 pin, brow n, in E-box plenum chamber D80 - Plus connection (87a- for EVAP system solenoid), in engine
T14i - Connector 14 pin, in engine compartment, left compartment w iring harness
D140 - Connector (injectors), in w iring harness, engine pre-w iring

Coolant (Fan Cont rol) Cont rol M odule, Fuses Edit ion 05/ 01
W42.USA.5702.07.21
Audi TT Wiring diagram No. 25/27
30 30
15 15
X X
31 31

30

1,0
A98
4,0 4,0 J429
ro ro ro 4/2
B156
16
E87 / A11 89

S
16 0,35
li/ge
0,35
li/ge
0,35
li/ge
10A
16a

287
E87 / A2 E87 / C2
L40
0,5 1,0 0,5 0,5 0,35
sw/bl ro/gr br/bl sw/ws li/ge

T14b/9 T14b/4 J293 T14b/8 T14b/12 T14b/13

T14b/7 T4f/2 T4f/4 T14b/6

31

1,0 1,5 6,0

ro/ge ro/ws ro/sw

A68 L26

A68

L43
2,5 2,5 2,5 4,0 2,5 4,0
ro ro/ws ro/ws ro/sw ro/ws ro/sw

3 1 2 1 2 1

t° t°
M M
F54 V7 V177 ws = white
F18 2 3 3 sw = black
ro = red
br = brown
4,0 4,0 0,5
gn = green
br/sw br/sw br/sw bl = blue
gr = grey
li = violet
188 188 188
ge = yellow

337 338 339 340 341 342 343 344 345 346 347 348 349 350
97-52122

E87 - A/C Control Head 188 - Ground connection -3-, in A/C wiring harness
F18 - Coolant Fan Control (FC) Thermal Switch
F54 - Coolant Fan Control (FC) Thermal Switch A68 - Connector (30, A/C), in instrument panel wiring harness
J293 - Coolant FC (Fan Control) Control Module, in engine
compartment, left front A98 - Plus connector -4- (30), in instrument panel wiring harness
J429 - Control module for central locking
S16 - Fuse B156 - Plus connector -4- (30), in wiring harness interior
T4f - Connector 4 pin, connector B on J293
T14b - Connector 14 pin, connector A on J293 L26 - Wire connection (coolant fan), in A/C-climatronic/engine
V7 - Coolant Fan compartment wiring harness
V177 - Coolant Fan -2- L40 - Wire connection -2- (A/C Pressure Switch), in Climatronic
wiring harness
L43 - Wire connection (coolant fan), in A/C system-coolant fan
wiring harness

Edition 07/01 Coolant (Fan Control) Control Module, Coolant Fan

W42.USA.5702.08.21 Control Thermal Switch, Coolant Fan
No. 25/28 Wiring diagram Audi TT
30 30
15 15
X X
31 31

B151
N25 J429 J429
1 1/2 1/5

1,0 0,5 0,5 0,5 0,35 0,35

gn/sw br/ws ro/sw ro/sw ro/sw ro/sw

T4b/3
1,0
gn/sw W19 2 3 W W13 4

T14b/10 J293

W20 W14
T14b/1 T14b/2 5/58s 1/31

0,5 0,5 0,5 0,35 0,35

ro/sw ws gr/bl br/bl br/bl

L39 B116
2

M 0,5 0,5
V51 ws gr/bl
F147 F148
1
2 130
G 65

ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey 0,5 4,0 0,5 0,35 0,35
br/sw br/sw br br br
li = violet
ge = yellow
188 640 188 128 128 128

351 352 353 354 355 356 357 358 359 360 361 362 363 364
97-50239

F147 - Left Make-Up Mirror Light Switch 128 - Ground connection -1-, in interior light wiring harness
F148 - Right Make-Up Mirror Light Switch
G65 - High Pressure Sensor 188 - Ground connection -3-, in A/C wiring harness
J293 - Coolant FC (Fan Control) Control Module, in engine
compartment, left front
J429 - Control module for central locking 640 - Ground connection -2-, in engine compartment, left
N25 - A/C Clutch
T4b - Connector 4 pin, in engine compartment, left B116 - Connector (58s), in wiring harness interior
T14b - Connector 14 pin, connector A on J293
V51 - After-Run Coolant Pump B151 - Plus connector -3- (30a), in wiring harness interior
W - Front Interior Light
W13 - Passenger’s Map/Reading Light
W14 - Right Make-up Mirror Light L39 - Wire connection -1- (A/C Pressure Switch), in Climatronic
W19 - Left Front Reading Light wiring harness
W20 - Left Make-up Mirror Light

Interior Light, Make-Up Mirror Light, Edition 07/01

After-Run Coolant Pump W42.USA.5702.08.21