Automatic anti-dazzle interior mirror
●
Automatic headlight switching
●
Surround lighting: "coming/leaving home function"
From model year 2004
Audi A4
Current Flow Diagram
No. 29 / 1
Edition 09.2003
Main fuse
On battery
Connector point, A pillar
On left-hand side, bottom, behind side trim
Page 1 of 8
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10 - 17-pin connector, orange (T17f)
16 - 17-pin connector, red (T17a)
17 - 17-pin connector, black (T17)
Connector point, A pillar
On right hand-side, bottom, behind trim
15 - 17-pin connector, red (T17c)
4-point relay carrier with screw connection
Dash panel, driver's side
9-point relay carrier with onboard power supply control unit
Page 2 of 8
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Dash panel, driver's side, behind 3-point relay carrier
Page 3 of 8
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Audi A4
Current Flow Diagram
No. 29 / 2
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li
= purple
ge = yellow
or = orange
rs = pink
Voltage supply, onboard power supply control unit
D
- Ignition/starter switch
J431
- Headlight range control, control unit
J519
- Onboard power supply control unit
S10
- Fuse in fuse box/relay plate
T10b
- 10-pin connector, black, on onboard power supply control unit
T23
- 23-pin connector, black, on onboard power supply control unit
135
- Earth connection -2-, in dash panel wiring harness
501
- Screw connection -2- (30), on relay plate
A2
- Positive (+) connection (15), in dash panel wiring harness
A32
- Positive (+) connection (30), in dash panel wiring harness
A57
- Positive (+) connection -3- (30), in dash panel wiring harness
*
- Only applies to models with headlight range control
**
- Only applies to models with automatic headlight range control
Audi A4
Current Flow Diagram
No. 29 / 3
Page 4 of 8
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ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li
= purple
ge = yellow
or = orange
rs = pink
Onboard power supply control unit, lighting switch, headlight
range control adjuster
E1
- Lighting switch
E102 - Headlight range control adjuster
E491 - Surround lights deactivation switch
J285
- Control unit with display in dash panel insert
J519
- Onboard power supply control unit
T6i
- 6-pin connector, brown, behind side trim, rear left
T17f
- 17-pin connector, orange, connector point, A pillar, left
T32a
- 32-pin connector, green, on dash panel insert
T32b
- 32-pin connector, grey, on onboard power supply control unit
135
- Earth connection -2-, in dash panel wiring harness
238
- Earth connection -1-, in interior wiring harness
A19
- Connection (58d), in dash panel wiring harness
A51
- Connection (56), in dash panel wiring harness
A175
- Connection (58s), in dash panel wiring harness
*
- Only applies to models with headlight range control
**
-
Avant models - see applicable Current Flow Diagram: Avant
models, rear
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Audi A4
Current Flow Diagram
No. 29 / 4
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li
= purple
ge = yellow
or = orange
rs = pink
Onboard power supply control unit, side light bulb, dipped beam
bulb
E23
- Front and rear fog light switch
J519
- Onboard power supply control unit
M1
- Side light bulb, left
M3
- Side light bulb, right
M29
- Dipped beam bulb, left
M31
- Dipped beam bulb, right
T17
- 17-pin connector, black, connector point, A pillar, left
T17a
- 17-pin connector, red, connector point, A pillar, left
T17c
- 17-pin connector, red, connector point, A pillar, right
T23
- 23-pin connector, black, on onboard power supply control unit
T32b
- 32-pin connector, grey, on onboard power supply control unit
V48
- Headlight range control motor, left
V49
- Headlight range control motor, right
176
- Earth connection, in right headlight wiring harness
179
- Earth connection, in left headlight wiring harness
A85
- Connection (58R), in dash panel wiring harness
A114
-
Connection (headlight range control), in dash panel wiring
harness
B167
- Connection (56b), in interior wiring harness
*
- Only applies to models with headlight range control
**
- Only applies to models with US equipment
Audi A4
Current Flow Diagram
No. 29 / 5
Page 6 of 8
WI-XML
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li
= purple
ge = yellow
or = orange
rs = pink
Onboard power supply control unit, fog light bulb, tail light bulb,
number plate light
J519
- Onboard power supply control unit
L22
- Fog light bulb, left
L23
- Fog light bulb, right
M2
- Tail light bulb, right
M4
- Tail light bulb, left
T4k
- 4-pin connector, black, near front bumper
T4l
- 4-pin connector, black, in rear lid
T17
- 17-pin connector, black, connector point, A pillar, left
T23
- 23-pin connector, black, on onboard power supply control unit
T32b
- 32-pin connector, grey, on onboard power supply control unit
X
- Number plate light
86
- Earth connection -1-, in rear wiring harness
87
- Earth connection -2-, in rear wiring harness
249
- Earth connection -2-, in interior wiring harness
345
- Earth connection, in bumper, horn/fog light wiring harness
B132
- Connection (number plate light), in interior wiring harness
*
-
Avant models applicable Current Flow Diagram: Avant
models, rear
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Audi A4
Current Flow Diagram
No. 29 / 6
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li
= purple
ge = yellow
or = orange
rs = pink
Light sensor, door control unit, automatic anti-dazzle interior
mirror
G399 - Light sensor
J386
- Door control unit, driver's side
J387
- Door control unit, front passenger's side
J519
- Onboard power supply control unit
T10e
- 10-pin connector, black, on door control unit, driver's door
T10f
-
10-pin connector, black, on door control unit, front
passenger's door
T17f
- 17-pin connector, orange, connector point, A pillar, left
T20
- 20-pin connector, black, door, A pillar, left
T20a
- 20-pin connector, black, door, A pillar, right
T32b
- 32-pin connector, grey, on onboard power supply control unit
W
- Interior light, front
Y7
- Automatic anti-dazzle interior mirror
44
- Earth point, lower part of left A pillar
347
- Earth connection, in roof wiring harness
A187
-
Connection -1- (automatic anti-dazzle exterior mirror), in dash
panel wiring harness
A188
-
Connection -2- (automatic anti-dazzle exterior mirror), in dash
panel wiring harness
*
-
Only applies to models with automatic anti-dazzle exterior
mirror
Page 8 of 8
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