-
Edit ion 08/ 01W42.USA.5504.01.21
Wiring diagram
A97--0220
Main fuse
4-Pin Relay Carrier w ith threadedconnect ion
A97--0248
5 6 7
1 2 3 4
A97--0245
1 23
4
CB
G
E F
AD
H
Connector stat ion E-box, plenum cham-ber
Audi A4 No. 2/ 1
Standard Equipment
from 2002 m. y.
-
Edit ion 08/ 01W42.USA.5504.01.21
Wiring diagram
Fuse holder
9-Pin Relay Carrier in the inst rumentpanel
Relay Locat ion :
A97--0242
2322
2120
1918
1716
1514
1312
1110
98
76
5
34
12
4443
4241
40
37
3938
3635
3433
3231
3029
2827
2625
24
Res
Res
Res
Res
Res
8 97
A97--0243
A
1
B
2 3 4 5 6
15 A10 A
25 A20 A
30 A
Fuse Colors
--
--
-
GreenWhite
BlueRed
Yellow
- Orange5A - Beige
7,5A
Fuse in fusebox from 23 onwards are numbered 223onwards in Current Flow Diagram.
3 - Horn Relay
6 - Load Reduction Relay
Audi A4 No. 2/ 2
-
1 2 3 4 5 6 7 8 9 10 11 12 13 14
97--52805
3
35,0sw
179 345
T4k/42,5br
2,5br
8312
4,0br
12 179
4,0br
6,0br
8650
6,0br
78 249
2,5br
34744
Edit ion 08/ 01W42.USA.5504.01.21
Wiring diagram
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellow
Ground connect ions
or = orange
rs = pink
Audi A4 No. 2/ 3
T4k - 4-Pin Connector, black, near front bumper
3 - Ground strap, engine to body
12 - Ground connection, in engine compartment,left
44 - Ground connection (lower left A-pillar)
50 - Ground connection, in luggage compartment,left
78 - Ground connection (lower right B-pillar)
83 - Ground connection -1-, in right front wiringharness
86 - Ground connection -1-, in rear wiring harness
179 - Ground connection, in left headlight wiringharness
249 - Ground connection -2-, in wiring harnessinterior
345 - Ground connection (in bumper wiring harness),Fanfare/Fog light
347 - Ground connection (in roof wiring harness)
-
15 16 17 18 19 20 21 22 23 24 25 26 27 28
32
6,0br
44 81
6,0br
44 238
6,0br
43 135
6,0br
43 261135
T10c/11,5
br1,5br
43 176
4,0br
97--53043
Edit ion 08/ 01W42.USA.5504.01.21
Wiring diagram
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellow
Ground connect ions
or = orange
rs = pink
Audi A4 No. 2/ 4
T10c - 10-Pin Connector, violet, connector stationA-pillar, left
32 - Ground connection, behind instrument panel,left
43 - Ground connection (lower right A-pillar)
44 - Ground connection (lower left A-pillar)
81 - Ground connection -1-, in instrument panelwiring harness
135 - Ground connection -2-, in instrument panelwiring harness
176 - Ground connection, in right headlight wiringharness
238 - Ground connection -1-, in wiring harnessinterior
261 - Ground connection, in wiring harness heatedspray jet
-
29 30 31 32 33 34 35 36 37 38 39 40 41 42
97--54123
2/754/P8/86sD
3/30 7/30
0,5ro
0,35gr/ge
2,5ro
1/50
2,5ro
6/15
4,0sw
0 1 0 1 2 3
6,0ro
2,5ro
2,5ro
0,35bl
0,5ge/sw
1,0ge/sw
A32
A21
A33
a
c
d
e
11
--A
+
35,0br
501
b
221
0,22ro
203
B
5/50b
2,5ro/sw
2,5sw
T1
T10a/4
2,5ro/sw
6,0ro
6,0ro
6,0ro
208163 190
81 82
199
1,0ge/sw
A2
227
4,0sw
141
0,22ge/sw
S88150A
16,0ro
500
0,35sw
16,0ro
0,35sw
92
Edit ion 12/ 01W42.USA.5504.02.21
Wiring diagram
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellow
Ignit ion/ Starter Sw itch, main fuse
or = orange
rs = pink
Audi A4 No. 2/ 5
A - BatteryB - StarterD - Ignition/Starter SwitchS88 - Fuse Strip (main fuse)T1 - 1-Pin Connector, black, engine compartment,
rightT10a - 10-Pin Connector, brown, connector station
E-box, plenum chamber
11 - Ground connection, in battery box
500 - Threaded connection -1- (30), on the relay plate
501 - Threaded connection -2- (30), on the relay plate
A2 - Plus connection (15), in instrument panel wiringharness
A21 - Wire connection (86s), in instrument panelwiring harness
A32 - Plus connection (30), in instrument panel wiringharness
A33 - Wire connection (75), in instrument panelwiring harness
-
43 44 45 46 47 48 49 50 51 52 53 54
97--53371
55 56
E 45
1,0br
1,0ro/ge
A21
T16a/15
0,35gr/ge
0,35bl
0,5ge/sw
T16a/12 T16a/16 T16a/1
T16a/2
0,22ro
T16a/14
A2
0,5sw
T16a/13
J 527
135
0,22bl/gn
T16a/5
J...
T17e/10
0,35bl/gn
170
a
c
d
e
b
Edit ion 12/ 01W42.USA.5504.02.21
Wiring diagram
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellow
Steering Column Electronic Systems Control Module, Cruise Control
or = orange
rs = pink
Audi A4 No. 2/ 6
E45 - Cruise Control SwitchJ... - Engine Control Module (ECM)J527 - Steering Column Electronic Systems Control
ModuleT16a - 16-Pin Connector, black, on steering Column
Electronic Systems Control ModuleT17e - 17-Pin Connector, white, connector station
E-box, plenum chamber
135 - Ground connection -2-, in instrument panelwiring harness
A2 - Plus connection (15), in instrument panel wiringharness
A21 - Wire connection (86s), in instrument panelwiring harness
-
57 58 59 60 61 62 63 64 65 66 67 68
97--52809
69 70
E 2 E 22
G85H
J 527
Edit ion 08/ 01W42.USA.5504.01.21
Wiring diagram
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellow
Turn signal sw itch, w indshield Wiper/ Washer Sw itch, steering Angle Sensor,signal horn act ivat ion, steering Column Electronic Systems Control Module
or = orange
rs = pink
Audi A4 No. 2/ 7
E2 - Turn signal switchE22 - Windshield Wiper/Washer SwitchG85 - Steering Angle SensorH - Signal horn activationJ527 - Steering Column Electronic Systems Control
Module
-
97--53372
71 72 73 74 75 76 77 78 79 80 81 82 83 84
T23/20
J 519
J 527
A147T32b/12
0,22or/gn
0,22or/br
0,22or/gn
T32b/13
0,22or/sw
0,22or/br
T16a/8
T16a/10
A146
T10b/7
0,35br
135
1,0br
135
230232
T16a/9
T16a/11
0,35gn/li
2,5gn/ge
2,5sw/ws
T32b/11
T10b/3
M
3/53e 1/53b 2/53
261
1,5br
T10c/2
T10b/4
T10c/4
T10c/8
0,35gn/li
1,5gn/ge
1,5sw/ws
M
1
V5V
0,5sw/li
T17/8
0,5bl/li
T17/7
0,5sw/li
0,5br
T23/1 T23/2 T10b/2
T1a
1,5ro/ws
M
V11
44
2,5br
T10b/9
2,5ro
36
T10b/10
2,5ro
37
1,5ro/ws
2
4/31 2 1
0,22or/br
0,22or/br
0,22or/gn
187 188
Edit ion 08/ 01W42.USA.5504.01.21
Wiring diagram
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellow
Vehicle Elect rical System Control Module, steering Column ElectronicSystems Control Module, w indshield Wiper Motor, Washer Pump
or = orange
rs = pink
Audi A4 No. 2/ 8
J519 - Vehicle Electrical System Control ModuleJ527 - Steering Column Electronic Systems Control
ModuleT1a - 1-Pin Connector, black, connector station
A-pillar, leftT10b - 10-Pin Connector, black, on vehicle Electrical
System Control ModuleT10c - 10-Pin Connector, violet, connector station
A-pillar, leftT16a - 16-Pin Connector, black, on steering Column
Electronic Systems Control ModuleT17 - 17-Pin Connector, black, connector station
A-pillar, leftT23 - 23-Pin Connector, black, on vehicle Electrical
System Control ModuleT32b - 32-Pin Connector, grey, on vehicle Electrical
System Control Module
V - Windshield Wiper MotorV5 - Windshield Washer PumpV11 - Headlight Washer Pump
44 - Ground connection (lower left A-pillar)
135 - Ground connection -2-, in instrument panelwiring harness
261 - Ground connection, in wiring harness heatedspray jet
A146 - Comfort System High-bus Connection (ininstrument panel wiring harness)
A147 - Comfort System Low-bus Connection (ininstrument panel wiring harness)
-
85 86 87 88 89 90 91 92 93 94 95 96 97 98
97--53373
1E23E
2/XR15/30 17/58d1/XZ
14/58 10/317/A 8/NL3/TFL
T32b/26
T32b/25
135
A3
A51
16441163 245
0,35gr
0,22ge
0,35gr
0,5ro
0,35sw
0,5sw/ge
0,5gr/bl
J 519
11/56
9/NSL
0,35gr/ws
T32b/32
0,35li
T32b/29
0,35bl
T32b/27T32b/28
0,35ws/gn
0,35ge
10 2 A
0,5br
102E
8/58S 2/56b
5/31
1/58S
0,22gr/bl
0,22gr/bl
3/G0,5
gr/ge0,35gr/ge
0,35gr/ge
0,22br
238
A114
243241 102 123
0,22ge
*
*
** *
Edit ion 08/ 01W42.USA.5504.01.21
Wiring diagram
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellow
Light sw itch, headlight adjuster, Vehicle Elect rical System Control Module
or = orange
rs = pink
Audi A4 No. 2/ 9
E1 - Light switchE23 - Fog Light SwitchE102 - Headlight AdjusterJ519 - Vehicle Electrical System Control ModuleT32b - 32-Pin Connector, grey, on vehicle Electrical
System Control Module
135 - Ground connection -2-, in instrument panelwiring harness
238 - Ground connection -1-, in wiring harnessinterior
A3 - Plus connection (58), in instrument panel wiringharness
A51 - Wire connection (56), in instrument panelwiring harness
A114 - Wire connection (headlight Adjuster), ininstrument panel wiring harness
* - Not applicable to USA/CDN
-
97--53374
100 101 102 103 104 105 106 107 108 109 110 111
4/31
M18
+
--
M5M 1L 110/31
9/BL7/58L1/56a
179
5/56b2/56b6/G
179
1,0br
8/31
179
2,5br
V48
179
0,5br
0,5br
0,5gn
0,5sw/bl
1,0ws/sw
0,35gn/ge
112
0,5ge/sw
1,5ge/sw
0,5gr/sw
99
A6E117
T17a/16
T17a/3T17a/2T17a/1T17a/15T17a/8
0,5sw/bl
1,0ws/sw
L 22
1
345
1,0br
1,0ws/gn
T17/16
T4k/1
1,0ws/gn
T23/9
0,5sw/bl
1,0ws/sw
0,5gr/sw
T32b/3T23/18
J 519
2
T23/21
0,5ws/gn
0,5gn/ge
1,0ge/sw
T23/23 T32b/21
0,5sw/gn
A181
0,5sw/gn
94
*
*
Edit ion 08/ 01W42.USA.5504.01.21
Wiring diagram
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellow
Left headlight , left Fog Light
or = orange
rs = pink
Audi A4 No. 2/ 10
J519 - Vehicle Electrical System Control ModuleL1 - Twin filament bulb for headlight, leftL22 - Left Front Fog LightM1 - Left Parking LightM5 - Left Front Turn Signal LightM18 - Left Side Turn Signal LightT4k - 4-Pin Connector, black, near front bumperT17 - 17-Pin Connector, black, connector station
A-pillar, leftT17a - 17-Pin Connector, red, connector station
A-pillar, leftT23 - 23-Pin Connector, black, on vehicle Electrical
System Control ModuleT32b - 32-Pin Connector, grey, on vehicle Electrical
System Control ModuleV48 - Left Headlight Beam Adjusting Motor*
179 - Ground connection, in left headlight wiringharness
345 - Ground connection (in bumper wiring harness),Fanfare/Fog light
A6 - Plus connection (left turn signal), in instrumentpanel wiring harness
A181 - Left Turn Signal Plus Connection -2- (ininstrument panel wiring harness)
E117 - Connector (56a left), in instrument panel wiringharness
* - Not applicable to USA/CDN
-
T17c/16
97--53375
M 19
+
--
M7 M 3 L 28/31
9/BR 7/58R
176 176
2,5br
10/31
176
1,0br
V49
176
0,5br
0,5br
0,5gn
0,5sw/gr
0,5gr/ro
1,5ws/ge
1,5ge/ws
0,35gr/ge
0,5ge/ws
113 114 115 116 117 118 119 120 121 122 123 124 125 126
1/56a 5/56b 2/56b 6/G
T17c/3 T17c/2 T17c/1 T17c/15
T17c/8
A5 E116
0,5gn/sw
1,0ws/ge
0,5gr/ge
1,5ge/ws
0,5bl/sw
1,0ws/ge
0,5gr/ro
L 23
1
2
345
1,0br
1,0ws/bl
T17/15
T4k/2
1,0ws/bl
J 519
T32b/22 T32b/5 T23/16
0,5gn/sw
T23/7
1,0ge/ws
T23/22
0,5ws/bl
T23/19
0,5bl/sw
0,5gr/ro
4/31
A85A180 95
*
**
Edit ion 08/ 01W42.USA.5504.01.21
Wiring diagram
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellow
Right headlight , right Fog Light
or = orange
rs = pink
Audi A4 No. 2/ 11
J519 - Vehicle Electrical System Control ModuleL2 - Twin filament bulb for headlight, rightL23 - Right Front Fog LightM3 - Right Parking LightM7 - Right Front Turn Signal LightM19 - Right Side Turn Signal LightT4k - 4-Pin Connector, black, near front bumperT17 - 17-Pin Connector, black, connector station
A-pillar, leftT17c - 17-Pin Connector, red, connector station
A-pillar, rightT23 - 23-Pin Connector, black, on vehicle Electrical
System Control ModuleT32b - 32-Pin Connector, grey, on vehicle Electrical
System Control ModuleV49 - Right Headlight Beam Adjusting Motor*
176 - Ground connection, in right headlight wiringharness
345 - Ground connection (in bumper wiring harness),Fanfare/Fog light
A5 - Plus connection (right turn signal), in instrumentpanel wiring harness
A85 - Wire connection (58R), in instrument panelwiring harness
A180 - Right Turn Signal Plus Connection -2- (ininstrument panel wiring harness)
E116 - Connector (56a, right), in instrument panelwiring harness
* - Not applicable to USA/CDN
-
127 128 129 130 131 132 133 134 135 136 137 138 139 140
97--53376
1,5br
1,5br
M16 L46 M6 M9
1/31
86
3/RF 5/BL 4/58L 6/54L
M10
5/31
M8 M17
0,5sw/gn
2/54R 4/58R 1/BR2/NSL 3/RF1/54
86
2/31
M25
0,35br
249
1
2
X
86
0,35br
0,35ro
T4l/3
0,5ro/sw
T4l/4
0,35bl
J 519
T32b/6T23/5
1,0bl/ro
T23/15
0,5gr/ws
T23/6
0,5gn/bl
0,5gn/bl
0,35gr/sw
T32b/4
T23/12
0,35sw/ro
T23/14
0,5ro/sw
T23/10
0,35gr/ro
T32b/7
0,5sw/gn
T23/4
1,0bl/ro
T23/8
0,35gr
B186 B187
M4 M2M4 M2
**
0,35gr
B132
Edit ion 08/ 01W42.USA.5504.01.21
Wiring diagram
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellow
Rear lights
or = orange
rs = pink
Audi A4 No. 2/ 12
J519 - Vehicle Electrical System Control ModuleL46 - Left Rear Fog LightM2 - Right Tail LightM4 - Left Tail LightM6 - Left Rear Turn Signal LightM8 - Right Rear Turn Signal LightM9 - Left Brake LightM10 - Right Brake LightM16 - Left Back-Up LightM17 - Right Back-Up LightM25 - High-mount Brake LightT4l - 4-Pin Connector, black, in rear lidT23 - 23-Pin Connector, black, on vehicle Electrical
System Control ModuleT32b - 32-Pin Connector, grey, on vehicle Electrical
System Control ModuleX - License Plate Light
86 - Ground connection -1-, in rear wiring harness
249 - Ground connection -2-, in wiring harnessinterior
B132 - Connector (license plate light), in wiringharness interior
B186 - Connector -2- (BL), in wiring harness interior
B187 - Connector -2- (BR), in wiring harness interior
* - M2/M4 twin filament bulb (5W), not required
-
97--53377
141 142 143 144 145 146 147 148 149 150 151 152 153 154
E 229
1 62
43
0,22br
135
0,22br
135
0,22ge/bl
0,22ro/ge
J4/85
6/86
4
2/30
8/87
A90
E112
3
0,35gn/ge
0,35gn/ge
1,5ro/ge
2,5ro/ge
2,5sw/ws
2,5sw/ws
T4k/4
H2
179
2,5br
H7T17a/17
T4k/3
2,5sw/ws
2,5sw/ws
1,5sw/ws
1,5sw/ws
2,5br
1,5br
1,5br
X66
345
176
J 519
T32b/9
T32b/8
T32b/1T32b/17
0,22ge/sw
37
31
0,22ws/li
0,22ge/ro
T32b/19T32b/18
0,22ws/li
0,22ge/ro
T17f/14
T17f/13
0,22br
347
2 G213
0,22ro/ge
E112B260
Edit ion 08/ 01W42.USA.5504.01.21
Wiring diagram
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellow
Sw itch for emergency flasher, tw o-tone horn, rain Sensor,vehicle Elect rical System Control Module
or = orange
rs = pink
Audi A4 No. 2/ 13
E229 - Switch for emergency flasherG213 - Rain SensorH2 - High Tone HornH7 - Low Tone HornJ4 - Horn RelayJ519 - Vehicle Electrical System Control ModuleT4k - 4-Pin Connector, black, near front bumperT17a - 17-Pin Connector, red, connector station
A-pillar, leftT17f - 17-Pin Connector, orange, connector station
A-pillar, leftT32b - 32-Pin Connector, grey, on vehicle Electrical
System Control Module
135 - Ground connection -2-, in instrument panelwiring harness
179 - Ground connection, in left headlight wiringharness
345 - Ground connection (in bumper wiring harness),Fanfare/Fog light
347 - Ground connection (in roof wiring harness)
A90 - Connector (two-tone horn), in instrument panelwiring harness
B260 - Connector (emergency flasher), in wiringharness interior
E112 - Connector (Horn-87h) in instrument panelwiring harness
X66 - Horn Connection (in front bumper wiringharness)
-
97--53378
155 156 157 158 159 160 161 162 163 164 165 166 167 168
T32b/2
J 519
J
4
59
26
0,5sw/ge
4,0sw/ge
A34
23720AS236
30AS
37a36a
T10b/8 T10b/5
2,5sw/ge
2,5sw/gn
A57
3 1
0,5ro
4,0ro
3736
4,0sw/ge
2,5sw/ge
29
6,0ro
0,5ro
91
0,5sw/ge
94
a
T32b/10
T32b/15
A18
2 4
13F
1,0sw/br
A154
1,0ro/sw
1,0ws/ro
0,22ro/sw
0,22ws/ro
b
1,0ro/br
A104
0,5ro/ws
0,5ro/ws
204
T10a/8
***
Edit ion 08/ 01W42.USA.5504.01.21
Wiring diagram
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellow
Brake Light Sw itch, load Reduct ion Relay, vehicle Elect rical SystemControl Module
or = orange
rs = pink
Audi A4 No. 2/ 14
F - Brake Light SwitchJ59 - Load Reduction RelayJ519 - Vehicle Electrical System Control ModuleS236 - Fuse in fuse holderS237 - Fuse in fuse holderT10a - 10-Pin Connector, brown, connector station
E-box, plenum chamberT10b - 10-Pin Connector, black, on vehicle Electrical
System Control ModuleT32b - 32-Pin Connector, grey, on vehicle Electrical
System Control Module
A18 - Wire connection (54), in instrument panelwiring harness
A34 - Wire connection (75x), in instrument panelwiring harness
A57 - Plus connection -3- (30), in instrument panelwiring harness
A154 - Wire connection (Brake Light Switch), ininstrument panel wiring harness
A104 - Plus connector -2-, in instrument panel wiringharness
-
169 170 171 172 173 174 175 176 177 178 179 180
97--53379
181 182
6,0ro
1210AS
10AS
10AS
10AS 239
20AS 240
25AS 233
15AS13 14 15
0,5ro/sw
1,0ro/ge
1,0ro/br
1,0ro/bl
2,5ro/bl
2,5ro/ge
1,5ro/bl
135
1,5br
U1
2
3
128L
249
2,5ro
54 225 147
0,5ro/bl
A57
A50
2
0,22br
238
0,22gr/bl
1
L15
251
0,35gr/bl
260
A46
610
1,5br
A129
0,35gr
2,5ro/bl
T8/7 T8/8T8/2
12 39 40 3313 14 15
12a 39a 40a 33a13a 14a 15a
a
22
1,5ro
b
Edit ion 12/ 01W42.USA.5504.02.21
Wiring diagram
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellow
Ashtray Light , cigarette Lighter, fuses, radio connector III
or = orange
rs = pink
Audi A4 No. 2/ 15
L15 - Ashtray LightL28 - Cigarette Lighter LightS12 - Fuse in fuse holder/relay panelS13 - Fuse in fuse holder/relay panelS14 - Fuse in fuse holder/relay panelS15 - Fuse in fuse holder/relay panelS233 - Fuse in fuse holderS239 - Fuse in fuse holderS240 - Fuse in fuse holderT8 - 8-Pin Connector, black, radio connector IIIU1 - Cigarette Lighter
135 - Ground connection -2-, in instrument panelwiring harness
238 - Ground connection -1-, in wiring harnessinterior
610 - Ground connection (Audio) (under centerconsole, front)
A46 - Plus connection (30-from radio), in instrumentpanel wiring harness
A50 - Plus connection (30as), in instrument panelwiring harness
A57 - Plus connection -3- (30), in instrument panelwiring harness
A129 - Wire connection (quiet switch), in instrumentpanel wiring harness
-
183 184 185 186 187 188 189 190 191 192 193 194
97--54468
195 196
22630AS26
1Z
B180
73
F/5
87E
4,0ws/ge
4,0ws/li
4,0ws/li
25AS2
0,5ro/li
2
1W
1
29W10
0,5ro/li
0,5ro/li
0,35ro/li
T12d/1
0,5ro/gr
0,35ro/gn
2
1W6
0,5br/gr
0,5br
E 26
II/13II/6I/4
26a2a
238
F/6393J
0,5ro/ge
0,5br
T12d/7
T12d/2T12d/4
0,5ro/ge
2
1
0,35ro/gr
A29
24
30
6,0ro
73
4,0br
B248
18C
18C
18C
V/13
0,22or/gn
0,22or/gn
7473
T17d/15
A87
206
1,0bl/ro
1,0bl/ro
1,0bl/ro
V/12III/7
Edit ion 12/ 01W42.USA.5504.02.21
Wiring diagram
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellow
Glove Compartment Light , left Footw ell Light , right Footw ell Light ,heated rear w indow
or = orange
rs = pink
Audi A4 No. 2/ 16
C18 - Windshield Antenna Suppression FilterE26 - Glove compartment lightE87 - A/C Control HeadJ393 - Central control module for comfort systemS2 - Fuse in fuse holder/relay panelS226 - Fuse in fuse holderT12d - 12-Pin Connector, brown, near glove
CompartmentT17d - 17-Pin Connector, red, connector station E-box,
plenum chamberW6 - Glove Compartment LightW9 - Left Footwell LightW10 - Right Footwell LightZ1 - Heated rear window
73 - Ground connection, on roof bow, rear
238 - Ground connection -1-, in wiring harnessinterior
A29 - Wire connection (interior light), in instrumentpanel wiring harness
A87 - Connector (reverse lamp), in instrument panelwiring harness
B180 - Connection (heated rear window), in wiringharness interior
B248 - Heated Rear Window Connection -2- (in interiorwiring harness)
-
197 198 199 200 201 202 203 204 205 206 207 208
97--54469
209 210
4,0sw
510A5a
S5
23115A31a
S31
A74 A70
1,0sw/ro
1,5sw/bl
0,5sw/bl
1,0sw/ro
2,5ro
S23530A35a
35
2,5ro/gr
U
2,5br
249
1
2
A52
31
6,0ro
1,0ge/sw
0,5br
0,5gr/gn*
*
20Z
0,5gr/gn*
0,5br *
21Z
*
T10c/3
0,5gr/gn*
261 261
38
35A3a
S3
A20
1,0sw/br
710AS
7a
7
1,5sw/br
39
223 156 258
2
1
2
1 3
F4
1,5sw/bl
T10a/51,5
sw/bl
1,0bl/ro
183
2
Edit ion 12/ 01W42.USA.5504.02.21
Wiring diagram
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellow
Fuses, Socket , heated spray jet
or = orange
rs = pink
Audi A4 No. 2/ 17
F4 - Back-Up Light SwitchS3 - Fuse in fuse holder/relay panelS5 - Fuse in fuse holder/relay panelS7 - Fuse in fuse holder/relay panelS231 - Fuse in fuse holderS235 - Fuse in fuse holderT10a - 10-Pin Connector, brown, connector station
E-box, plenum chamberT10c - 10-Pin Connector, violet, connector station
A-pillar, leftU - SocketZ20 - Left Washer Nozzle HeaterZ21 - Right Washer Nozzle Heater
249 - Ground connection -2-, in wiring harnessinterior
261 - Ground connection, in wiring harness heatedspray jet
A20 - Wire connection (15a), in instrument panelwiring harness
A52 - Plus connection -2- (30), in instrument panelwiring harness
A70 - Connector (15a, fuse 231), in instrument panelwiring harness
A74 - Connector (15a, fuse 5), in instrument panelwiring harness
� - Only heated spray jets
-
97--54137
212 213 214 215 216 217 218 219 220 221 222 223 224211
J285
T32/22
0,22ro
T32/1
0,22br/ro
T17/9
T32/21
0,35ge/gr
T10d/9
T10a/9
D2
T32/230,35ro/gr
0,35ro/gr
0,5sw/ro
83
0,5br
T10a/2
1,0sw/ro
0,5br/ro
0,35br/ge
0,35br/ge
269
1
2
0,35ge/gr
T14/4
T14/3
0,35br/ge
0,35ge/gr
0,35br/ge
0,35br/ge
269
T10d/10
34
G1
F38
T32/30 T32/31
12
0,22gn
0,22sw
G3
203
T32/32
269
0,22br/ge
T32/2
0,35bl/ge
F66
0,5bl/ge
T10/7
269
0,5br/ge
T32/3
0,35li/sw
2
3
1
3 22G
T32/4
0,35bl/br
0,35bl/br
T10/9
2
0,35br/ge
0,35br/ge
269
T10/6
0,35br/ge
0,35br/ge
327
2
13
G266
269
0,5br/ge
T32/11
0,35li/sw *
*
*
F77G G169
2
3
T17/10
Edit ion 12/ 01W42.USA.5504.02.21
Wiring diagram
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellow
Control module w ith indicator unit in inst rument panel insert
or = orange
rs = pink
Audi A4 No. 2/ 18
D2 - Induction Coil of Anti-theft ImmobilizerF38 - Ambient Temperature SwitchF66 - Engine Coolant Level (ECL) Warning SwitchF77 - Windshield Washer Fluid Level Warning SwitchG - Sender for fuel gaugeG1 - Fuel GaugeG2 - Engine Coolant Temperature (ECT) SensorG3 - Engine Coolant Temperature (ECT) GaugeG169 - Fuel Level Sensor 2G266- Oil Level Thermal SensorJ285 - Control module with indicator unit in instrument
panel insertT10 - 10-Pin Connector, black, connector station
E-box, plenum chamberT10a - 10-Pin Connector, brown, connector station
E-box, plenum chamber
T10d - 10-Pin Connector, grey, connector stationA-pillar, left
T14 - 14-Pin Connector, black, in enginecompartment, left
T17 - 17-Pin Connector, black, connector stationA-pillar, left
T32 - 32-Pin Connector, blue, on instrument panelinsert
83 - Ground connection -1-, in right front wiringharness
269 - Ground connection (sensor Ground) -1-, ininstrument panel wiring harness
327 - Ground connection (sensor Ground), in enginecompartment wiring harness
� - only quattro
-
97--53383
226 227 228 229 230 231 232 233 234 235 236 237 238225
J285
T32a/2
0,5ro/bl
261
0,5br
T32a/9
0,35ge/bl
T32a/12
0,22or/br
T32a/3
0,35sw
3/31
2/G1
G22
T32a/5
0,35br/ro
0,5br/ro
T10/10
83
0,5br
T32a/7
0,35ws/ge
68J234
T10c/10
T32a/13
0,22or/sw
T32a/16
0,35ws/gr
F1
T10/3
0,5ws/gr
T32a/14
0,35bl
0,35bl
T10/1
0,35bl
F34
0,5ge/bl
2
1
K75G21 K2
172 40
D+/61C
T2/1
0,35bl
A17
A122 A121
73 71
J... J ...
T17d/13
T17d/14
0,22or/br
0,22or/sw
0,22or/br
0,22or/sw
0,22or/br
0,22or/sw
G5
Edit ion 12/ 01W42.USA.5504.02.21
Wiring diagram
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellow
Control module w ith indicator unit in inst rument panel insert
or = orange
rs = pink
Audi A4 No. 2/ 19
C - Generator (GEN)F1 - Oil Pressure SwitchF34 - Brake Fluid Level Warning SwitchG5 - TachometerG21 - SpeedometerG22 - Speedometer Vehicle Speed SensorJ... - Engine Control Module (ECM)J234 - Airbag Control ModuleJ285 - Control module with indicator unit in instrument
panel insertK2 - Generator (GEN) Warning LightK75 - Airbag Malfunction Indicator Lamp (MIL)T2 - Double Connector, black, engine compartment,
rightT10 - 10-Pin Connector, black, connector station
E-box, plenum chamber
T10c - 10-Pin Connector, violet, connector stationA-pillar, left
T17d - 17-Pin Connector, red, connector station E-box,plenum chamber
T32a - 32-Pin Connector, green, on instrument panelinsert
83 - Ground connection -1-, in right front wiringharness
261 - Ground connection, in wiring harness heatedspray jet
A17 - Wire connection (61), in instrument panelwiring harness
A121 - Wire connection (High-bus), in instrument panelwiring harness
A122 - Wire connection (Low-bus), in instrument panelwiring harness
-
97--53384
J285
0,35br/ws
0,35ro/gn
T4m/1
0,35ge
J489
Y8
231
240 241 242 243 244 245 246 247 248 249 250 251 252239
T32a/17
0,5gr/bl
222
238
2
81
0,22br
2 2 2
0,22br
0,22br
0,22br
0,22br
0,22br
0,22br
238 238 238 238 238
0,22gr/bl
0,22gr/bl
0,22gr/bl
0,22gr/bl
0,22gr/bl
0,22gr/bl
0,22gr/bl
A1750,22gr/bl
0,22gr/bl
0,5gr/bl
0,22gr/bl
0,35gr/bl
179988785
11111 1 1
L121LLL67L L L68 69 122 50120
T4m/2 T4m/4
181
Edit ion 12/ 01W42.USA.5504.02.21
Wiring diagram
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellow
Control module w ith indicator unit in inst rument panel insert , Inst rumentPanel Vent Illuminat ion, radio Frequency Controlled Clock
or = orange
rs = pink
Audi A4 No. 2/ 20
J285 - Control module with indicator unit in instrumentpanel insert
J489 - Radio Frequency Controlled Clock ReceiverL50 - Rear Center Ashtray LightL67 - Left Instrument Panel Vent IlluminationL68 - Center Instrument Panel Vent IlluminationL69 - Right Instrument Panel Vent IlluminationL120 - Storage Compartment IlluminationL121 - Cup Holder IlluminationL122 - Coin Holder IlluminationT4m - 4-Pin Connector, black, on instrument panel
insertT32a - 32-Pin Connector, green, on instrument panel
insertY8 - Radio Frequency Controlled Clock
81 - Ground connection -1-, in instrument panelwiring harness
238 - Ground connection -1-, in wiring harnessinterior
A175 - Wire connection (58s), in instrument panelwiring harness
-
97--53385
J285
T32a/18
135
0,22br
T32a/19
135
0,22br
T32a/22 T32a/23
A76
0,22sw/ro
T17b/4
0,22gn/ro
T32a/32
35G
T17b/3
0,22br/gn
0,35br/gn
179
34G
0,35br
2 11 2
17J104
0,35sw/ro
T4o/2T4n/1T4n/2 T4o/1
0,35sw
254 255 256 257 258 259 260 261 262 263 264 265 266253
0,35gn/ro
T16/4 T16/5
179
0,35br
179
0,35br
169
0,5ro/sw
0,5sw/bl
205
T16/7T16/1 T16/16
Edit ion 12/ 01W42.USA.5504.02.21
Wiring diagram
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellow
Brake Pad Wear Sensor, control module w ith indicator unit ininst rument panel insert , Data Link Connector (DLC)
or = orange
rs = pink
Audi A4 No. 2/ 21
G34 - Left Front Brake Pad Wear SensorG35 - Right Front Brake Pad Wear SensorJ104 - ABS Control Module (w/EDL)J285 - Control module with indicator unit in instrument
panel insertT4n - 4-Pin Connector, black, left frontT4o - 4-Pin Connector, black, right frontT16 - 16-Pin Data Link Connector (DLC), black, under
instrument panel, leftT17b - 17-Pin Connector, green, connector station
A-pillar, leftT32a - 32-Pin Connector, green, on instrument panel
insert
135 - Ground connection -2-, in instrument panelwiring harness
179 - Ground connection, in left headlight wiringharness
A76 - Wire connection (K-diagnosis wire), ininstrument panel wiring harness
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