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Audi A4 Current Flow Diagram No.  109 / 1
Edition 10.2006

Basic equipment
  Lowline
  Highline
from model year 2006
Notes:
For information concerning
t  Position of relays and fuses
t  Multi-pin connections
t  Control units and relays
t  Earth connections
→ List of Fitting Locations!
For information concerning
t  Fault Finding Programs
→ guided fault finding

Audi A4 Current Flow Diagram No.  109 / 2
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Earth connections
T4k -   4-pin connector, black, near front bumper
  3 -   Earth strap, engine - body
  12 -   Earth point, on left in engine compartmentA00592000801#VB12
  26 -   Earth point, on front apronA00592000801#VB26
  50 -   Earth point, on left in luggage compartmentA00592000801#VB50
  78 -   Earth point, lower part of right B-pillarA00592000801#VB78
  83 -   Earth connection 1, in front right wiring harness
  86 -   Earth connection 1, in rear wiring harness
  87 -   Earth connection 2, in rear wiring harness
  121 -   Earth connection 2, in front right wiring harness
  179 -   Earth connection, in left headlight wiring harness
  249 -   Earth connection 2, in interior wiring harness
  345 -   Earth connection, in bumper wiring harness
* -   Cross-section 4.0 possible
** -   Cross-section 6,0 possible
*** -   ⇒ applicable engine Current Flow Diagram

Audi A4 Current Flow Diagram No.  109 / 3
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Earth connections
T10c -   10-pin connector, violet, coupling station on left of A-pillar
  32 -   Earth point, on left behind dash panel insertA00592000801#VB32
  33 -   Earth point, on right behind dash panelA00592000801#VB33
  43 -   Earth point, lower part of right A-pillarA00592000801#VB43
  44 -   Earth point, lower part of left A-pillarA00592000801#VB44
  49 -   Earth point, near convenience system central control unitA00592000801#VB49
  77 -   Earth point, lower part of left B-pillarA00592000801#VB77
  81 -   Earth connection 1, in dash panel wiring harness
  135 -   Earth connection 2, in dash panel wiring harness
  176 -   Earth connection, in right headlight wiring harness
  238 -   Earth connection 1, in interior wiring harness
  261 -   Earth connection, in heated washer jet wiring harness
  277 -   Earth connection 3, in interior wiring harness

Audi A4 Current Flow Diagram No.  109 / 4
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Ignition/starter switch, main fuse
A -   Battery
B -   Starter
D -   Ignition/starter switch
S88 -   Strip fuseA00592000802#BTS88
T17j -   17-pin connector, brown, coupling station on electronics box, plenum chamber
  11 -   Earth point, in battery boxA00592000801#VB11
  500 -   Screw connection 1 (30), on relay plate
  501 -   Screw connection 2 (30), on relay plate
  A2 -   Positive connection (15), in dash panel wiring harness
  A21 -   Connection (86s), in dash panel wiring harness
  A32 -   Positive connection (30), in dash panel wiring harness
  A33 -   Connection (75), in dash panel wiring harness
* -   for models with washer jet heater element only
** -   ⇒ applicable engine Current Flow Diagram

Audi A4 Current Flow Diagram No.  109 / 5
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Steering column electronics control unit, CCS
E45 -   Cruise control system switch
J527 -   Steering column electronics control unitA00592000804#BTJ527
J623 -   Engine control unit
T16a -   16-pin connector, black, on steering column electronics control unit
T17e -   17-pin connector, white, coupling station on electronics box, plenum chamber
  135 -   Earth connection 2, in dash panel wiring harness
  A2 -   Positive connection (15), in dash panel wiring harness
* -   ⇒ applicable engine Current Flow Diagram

Audi A4 Current Flow Diagram No.  109 / 6
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Turn signal switch, intermittent wiper switch, steering angle sender, horn plate, steering column electronics control unit
E2 -   Turn signal switch
E22 -   Intermittent wiper switch
G85 -   Steering angle sender
H -   Horn plate
J527 -   Steering column electronics control unitA00592000804#BTJ527

Audi A4 Current Flow Diagram No.  109 / 7
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Onboard supply control unit, steering column electronics control unit, windscreen wiper motor, washer pump, rear window wiper motor
J519 -   Onboard supply control unitA00592000804#BTJ519
J527 -   Steering column electronics control unitA00592000804#BTJ527
T8j -   8-pin connector, black, behind side trim on rear left
T10b -   10-pin connector, black, on onboard supply control unit
T10c -   10-pin connector, violet, coupling station on left of A-pillar
T16a -   16-pin connector, black, on steering column electronics control unit
T17 -   17-pin connector, black, coupling station on left of A-pillar
T23 -   23-pin connector, black, on onboard supply control unit
T32b -   32-pin connector, grey, on onboard supply control unit
V -   Windscreen wiper motor
V5 -   Washer pump
V12 -   Rear window wiper motor
  261 -   Earth connection, in heated washer jet wiring harness
  A146 -   Connection (convenience CAN bus, high), in dash panel wiring harness
  A147 -   Connection (convenience CAN bus, low), in dash panel wiring harness
* -   for Avant models, ⇒ see applicable Current Flow Diagram: Avant models, rear

Audi A4 Current Flow Diagram No.  109 / 8
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Light switch, headlight range control regulator
E1 -   Light switch
E23 -   Front and rear fog light switch
E102 -   Headlight range control regulator
E491 -   Deactivation switch for surround lighting
J431 -   Headlight range control, control unitA00592000804#BTJ431
J519 -   Onboard supply control unitA00592000804#BTJ519
S10 -   Fuse in relay plate fuse holderA00592000802#BTS10
T6i -   6-pin connector, brown, behind side trim on rear left
T32b -   32-pin connector, grey, on onboard 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
  A114 -   Connection (headlight range control), in dash panel wiring harness
* -   for models with automatic headlight switching / surround lighting only, ⇒ applicable Current Flow Diagram
** -   for Avant models, ⇒ see applicable Current Flow Diagram: Avant models, rear
*** -   for models with headlight range control only
**** -   for models without headlight range control only
***** -   for models with automatic headlight range control only, ⇒ applicable Current Flow Diagram

Audi A4 Current Flow Diagram No.  109 / 9
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Left headlight
J519 -   Onboard supply control unitA00592000804#BTJ519
L22 -   Left fog light bulb
M1 -   Left side light bulb
M5 -   Front left turn signal bulb
M18 -   Left side mounted turn signal bulb
M29 -   Left dipped beam bulb
M30 -   Left main beam bulb
T4k -   4-pin connector, black, near front bumper
T17 -   17-pin connector, black, coupling station on left of A-pillar
T17a -   17-pin connector, red, coupling station on left of A-pillar
T17b -   17-pin connector, green, coupling station on left of A-pillar
T23 -   23-pin connector, black, on onboard supply control unit
T32b -   32-pin connector, grey, on onboard supply control unit
V48 -   Left headlight range control motor
  179 -   Earth connection, in left headlight wiring harness
  345 -   Earth connection, in bumper wiring harness
  A6 -   Positive connection (left turn signal), in dash panel wiring harness
* -   for models without headlight range control only
** -   for models with headlights highline, headlights lowline only, ⇒ applicable Current Flow Diagram
*** -   for models with headlight range control only
**** -   ⇒ applicable Current Flow Diagram for headlight lowline

Audi A4 Current Flow Diagram No.  109 / 10
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Right headlight
J519 -   Onboard supply control unitA00592000804#BTJ519
L23 -   Right fog light bulb
M3 -   Right side light bulb
M7 -   Front right turn signal bulb
M19 -   Right side mounted turn signal bulb
M31 -   Right dipped beam bulb
M32 -   Right main beam bulb
T4k -   4-pin connector, black, near front bumper
T17 -   17-pin connector, black, coupling station on left of A-pillar
T17c -   17-pin connector, red, coupling station on right of A-pillar
T23 -   23-pin connector, black, on onboard supply control unit
T32b -   32-pin connector, grey, on onboard supply control unit
V49 -   Right headlight range control motor
  176 -   Earth connection, in right headlight wiring harness
  345 -   Earth connection, in bumper wiring harness
  A5 -   Positive connection (right turn signal), in dash panel wiring harness
* -   for models with headlight range control only
** -   for models with headlights highline, headlights lowline only, ⇒ applicable Current Flow Diagram
**** -   ⇒ applicable Current Flow Diagram for headlight lowline

Audi A4 Current Flow Diagram No.  109 / 11
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Left reversing lights
J519 -   Onboard supply control unitA00592000804#BTJ519
L46 -   Rear left fog light bulb
M4 -   Left tail light bulb
M6 -   Rear left turn signal bulb
M9 -   Left brake light bulb
M16 -   Left reversing light bulb
M25 -   High level brake light bulb
T23 -   23-pin connector, black, on onboard supply control unit
T32b -   32-pin connector, grey, on onboard supply control unit
  86 -   Earth connection 1, in rear wiring harness
  A87 -   Connection (RL), in dash panel wiring harness
* -   for Avant models, ⇒ see applicable Current Flow Diagram: Avant models, rear

Audi A4 Current Flow Diagram No.  109 / 12
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Right reversing lights
J519 -   Onboard supply control unitA00592000804#BTJ519
L47 -   Rear right fog light bulb
M2 -   Right tail light bulb
M8 -   Rear right turn signal bulb
M10 -   Right brake light bulb
M17 -   Right reversing light bulb
T4l -   4-pin connector, black, in rear lid
T23 -   23-pin connector, black, on onboard supply control unit
T32b -   32-pin connector, grey, on onboard supply control unit
X -   Number plate light
  87 -   Earth connection 2, in rear wiring harness
  249 -   Earth connection 2, in interior wiring harness
  B132 -   Connection (number plate lights), in interior wiring harness
* -   for Avant models, ⇒ see applicable Current Flow Diagram: Avant models, rear

Audi A4 Current Flow Diagram No.  109 / 13
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Hazard warning lights button, treble tone horn, bass tone horn
E229 -   Hazard warning lights button
H2 -   Treble tone horn
H7 -   Bass tone horn
J4 -   Dual tone horn relayA00592000803#BTJ4
J519 -   Onboard supply control unitA00592000804#BTJ519
T17a -   17-pin connector, red, coupling station on left of A-pillar
T17c -   17-pin connector, red, coupling station on right of A-pillar
T32b -   32-pin connector, grey, on onboard supply control unit
  81 -   Earth connection 1, in dash panel wiring harness
  135 -   Earth connection 2, in dash panel wiring harness
  176 -   Earth connection, in right headlight wiring harness
  179 -   Earth connection, in left headlight wiring harness

Audi A4 Current Flow Diagram No.  109 / 14
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Brake light switch, X-contact relief relay, headlight washer system pump
F -   Brake light switch
J59 -   X-contact relief relayA00592000803#BTJ59
J519 -   Onboard supply control unitA00592000804#BTJ519
T10b -   10-pin connector, black, on onboard supply control unit
T17b -   17-pin connector, green, coupling station on left of A-pillar
T23 -   23-pin connector, black, on onboard supply control unit
T32b -   32-pin connector, grey, on onboard supply control unit
V11 -   Headlight washer system pump
  81 -   Earth connection 1, in dash panel wiring harness
  135 -   Earth connection 2, in dash panel wiring harness
  179 -   Earth connection, in left headlight wiring harness
  A18 -   Connection (54), in dash panel wiring harness
  A34 -   Connection (75x), in dash panel wiring harness
  A57 -   Positive connection 3 (30), in dash panel wiring harness
* -   Protected via fuse S237, for models with headlight washer system only
** -   applicable up to model year 2006
*** -   applicable from model year 2007

Audi A4 Current Flow Diagram No.  109 / 15
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Fuses, radio connector III
S12 -   Fuse in relay plate fuse holderA00592000802#BTS12
S13 -   Fuse in relay plate fuse holderA00592000802#BTS13
S14 -   Fuse in relay plate fuse holderA00592000802#BTS14
S15 -   Fuse in relay plate fuse holderA00592000802#BTS15
S19 -   Fuse in relay plate fuse holderA00592000802#BTS19
S236 -   Fuse in fuse holderA00592000802#BTS236
S237 -   Fuse in fuse holder (headlight washer system)A00592000802#BTS237
S239 -   Fuse in fuse holderA00592000802#BTS239
S240 -   Fuse in fuse holderA00592000802#BTS240
T8 -   8-connector, black, radio connector III
T8j -   8-pin connector, black, behind side trim on rear left
  610 -   Earth point (audio), under centre console, frontA00592000801#VB610
  A34 -   Connection (75x), in dash panel wiring harness
  A46 -   Positive connection (30 - from radio), in dash panel wiring harness
  A50 -   Positive connection (30as), in dash panel wiring harness
  A57 -   Positive connection 3 (30), in dash panel wiring harness
  A159 -   Connection (L), in dash panel wiring harness
* -   for models with radio chorus, concert or symphony only
** -   for models with preparation for radio only
*** -   for Avant models, ⇒ see applicable Current Flow Diagram: Avant models, rear
**** -   ⇒ applicable Current Flow Diagram for headlight lowline
# -   No longer fitted, phased-in modification

Audi A4 Current Flow Diagram No.  109 / 16
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Glove compartment light, footwell lights
E26 -   Glove compartment light switch
J393 -   Convenience system central control unitA00592000804#BTJ393
S2 -   Fuse in relay plate fuse holderA00592000802#BTS2
T12d -   12-pin connector, brown, near glove compartment
T12h -   12-pin connector, black, on convenience system central control unit
T12i -   12-pin connector, black, on convenience system central control unit
T16h -   16-pin connector, black, on convenience system central control unit
T16i -   16-pin connector, brown, on convenience system central control unit
T17d -   17-pin connector, red, coupling station on electronics box, plenum chamber
T17f -   17-pin connector, orange, coupling station on left of A-pillar
W3 -   Luggage compartment light
W6 -   Glove compartment light
W9 -   Left footwell light
W10 -   Right footwell light
  238 -   Earth connection 1, in interior wiring harness
  A57 -   Positive connection 3 (30), in dash panel wiring harness
* -   for models with key operated switch to deactivate airbag only
** -   for models with manual gearbox (not for all engine versions) only
*** -   for models without 'light equipment' only
**** -   for Avant models ⇒ see applicable Current Flow Diagram: Avant models, rear

Audi A4 Current Flow Diagram No.  109 / 17
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Heated rear window, 12 V socket
C18 -   Window aerial suppression filter
J9 -   Heated rear window relayA00592000803#BTJ9
J255 -   Climatronic control unit
L15 -   Ashtray illumination bulb
L28 -   Cigarette lighter illumination bulb
L42 -   Socket illumination bulb
S1 -   Fuse in relay plate fuse holderA00592000802#BTS1
S226 -   Fuse in fuse holderA00592000802#BTS226
S233 -   Fuse in fuse holderA00592000802#BTS233
S234 -   Fuse in fuse holderA00592000802#BTS234
U1 -   Cigarette lighter
U5 -   12 V socket
Z1 -   Heated rear window
  81 -   Earth connection 1, in dash panel wiring harness
  135 -   Earth connection 2, in dash panel wiring harness
  238 -   Earth connection 1, in interior wiring harness
  653 -   Earth point, left D-pillarA00592000801#VB653
  654 -   Earth point, right D-pillarA00592000801#VB654
  A52 -   Positive connection 2 (30), in dash panel wiring harness
  A57 -   Positive connection 3 (30), in dash panel wiring harness
  B248 -   Connection 2 (heated rear window), in interior wiring harness
* -   for Avant models, ⇒ see applicable Current Flow Diagram: Avant models, rear
** -   for models without 12 V socket only
*** -   for models with 12 V socket only

Audi A4 Current Flow Diagram No.  109 / 18
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Reversing light switch, electric socket, washer jet heater element
F4 -   Reversing light switch
S3 -   Fuse in relay plate fuse holderA00592000802#BTS3
S5 -   Fuse in relay plate fuse holderA00592000802#BTS5
S231 -   Fuse in fuse holderA00592000802#BTS231
S235 -   Fuse in fuse holderA00592000802#BTS235
T10c -   10-pin connector, violet, coupling station on left of A-pillar
T17e -   17-pin connector, white, coupling station on electronics box, plenum chamber
U -   Electric socket
Z20 -   Left washer jet heater element
Z21 -   Right washer jet heater element
  249 -   Earth connection 2, in interior wiring harness
  261 -   Earth connection, in heated washer jet wiring harness
  A52 -   Positive connection 2 (30), in dash panel wiring harness
  A70 -   Connection (15a, fuse 231), in dash panel wiring harness
  A74 -   Connection (15a, fuse 5), in dash panel wiring harness
  D51 -   Positive connection 1 (15), in engine compartment wiring harness
* -   for models with washer jet heater element only
** -   for models with 5-speed manual gearbox only
*** -   for models with 6-speed manual gearbox only
**** -   Not applicable for all engine versions, ⇒ applicable engine Current Flow Diagram

Audi A4 Current Flow Diagram No.  109 / 19
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Control unit in dash panel insert, ambient temperature switch, fuel gauge sender, fuel gauge
F38 -   Ambient temperature switch
G -   Fuel gauge sender
G1 -   Fuel gauge
G169 -   Fuel gauge sender 2
J285 -   Control unit in dash panel insertA00592000804#BTJ285
J538 -   Fuel pump control unit
T2aj -   2-pin connector, black, in front engine compartment
T5d -   5-pin connector, black, near fuel pump
T10ac -   10-pin connector, black, in left engine compartment
T10d -   10-pin connector, grey, coupling station on left of A-pillar
T14 -   14-pin connector, black, on left in engine compartment
T32 -   32-pin connector, blue, on dash panel insert
  269 -   Earth connection (sender earth) 1, in dash panel wiring harness
* -   for models with four-wheel drive only
** -   For engine code BNS only
*** -   Not applicable for all engine versions, ⇒ applicable engine Current Flow Diagram
***** -   output for signal earth
# -   applicable up to model year 2006
## -   applicable from model year 2007

Audi A4 Current Flow Diagram No.  109 / 20
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Immobilizer reader coil, coolant shortage indicator switch, washer fluid warning contact
D2 -   Immobilizer reader coil
F66 -   Coolant shortage indicator switch
F77 -   Washer fluid warning contact
G2 -   Coolant temperature display sender
G3 -   Coolant temperature gauge
J285 -   Control unit in dash panel insertA00592000804#BTJ285
T17 -   17-pin connector, black, coupling station on left of A-pillar
T17d -   17-pin connector, red, coupling station on electronics box, plenum chamber
T17e -   17-pin connector, white, coupling station on electronics box, plenum chamber
T32 -   32-pin connector, blue, on dash panel insert
  269 -   Earth connection (sender earth) 1, in dash panel wiring harness
  327 -   Earth connection (sender earth), in engine compartment wiring harness
*** -   Not applicable for all engine versions, ⇒ applicable engine Current Flow Diagram
**** -   For highline equipment only

Audi A4 Current Flow Diagram No.  109 / 21
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Oil pressure switch, rev. counter
C -   Alternator
F1 -   Oil pressure switch
F34 -   Brake fluid level warning contact
G5 -   Rev. counter
J234 -   Airbag control unitA00592000804#BTJ234
J285 -   Control unit in dash panel insertA00592000804#BTJ285
J623 -   Engine control unit
K2 -   Alternator warning lamp
K75 -   Airbag warning lamp
T10c -   10-pin connector, violet, coupling station on left of A-pillar
T17d -   17-pin connector, red, coupling station on electronics box, plenum chamber
T17e -   17-pin connector, white, coupling station on electronics box, plenum chamber
T32a -   32-pin connector, green, on dash panel insert
  121 -   Earth connection 2, in front right wiring harness
  261 -   Earth connection, in heated washer jet wiring harness
  A17 -   Connection (61), in dash panel wiring harness
  A121 -   Connection (high bus), in dash panel wiring harness
  A122 -   Connection (low bus), in dash panel wiring harness
  D66 -   Positive connection (61), in engine compartment wiring harness
* -   ⇒ applicable engine Current Flow Diagram

Audi A4 Current Flow Diagram No.  109 / 22
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Dash panel vent illumination bulb, radio controlled clock
J285 -   Control unit in dash panel insertA00592000804#BTJ285
J489 -   Radio controlled clock receiver
L50 -   Rear centre ashtray illumination bulb
L67 -   Dash panel left vent illumination bulb
L68 -   Dash panel central vent illumination bulb
L69 -   Dash panel right vent illumination bulb
L120 -   Storage compartment illumination bulb
L121 -   Cup holder illumination bulb
L122 -   Coin holder illumination bulb
T4m -   4-pin connector, black, on dash panel insert
T32a -   32-pin connector, green, on dash panel insert
Y8 -   Radio controlled clock
  81 -   Earth connection 1, in dash panel wiring harness
  238 -   Earth connection 1, in interior wiring harness
  A175 -   Connection (58s), in dash panel wiring harness
* -   Depends on equipment
** -   not for models with front parking aid
*** -   for models without 12 V socket only
**** -   for models with 12 V socket only

Audi A4 Current Flow Diagram No.  109 / 23
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Diagnostic connector, speedometer, illuminated centre armrest
G21 -   Speedometer
J104 -   ABS control unitA00592000804#BTJ104
J285 -   Control unit in dash panel insertA00592000804#BTJ285
L157 -   Illuminated centre armrest
T16 -   16-pin connector, black, diagnostic connector
T17b -   17-pin connector, green, coupling station on left of A-pillar
T32a -   32-pin connector, green, on dash panel insert
  135 -   Earth connection 2, in dash panel wiring harness
  238 -   Earth connection 1, in interior wiring harness
  A27 -   Connection (speed signal), in dash panel wiring harness
  A76 -   Connection (diagnosis wire K), in dash panel wiring harness
  A175 -   Connection (58s), in dash panel wiring harness
** -   for models with centre armrest only

Audi A4 Current Flow Diagram No.  109 / 24
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Bonnet contact switch, oil level and oil temperature sender
F266 -   Bonnet contact switch
G266 -   Oil level and oil temperature sender
J285 -   Control unit in dash panel insertA00592000804#BTJ285
J393 -   Convenience system central control unitA00592000804#BTJ393
T10d -   10-pin connector, grey, coupling station on left of A-pillar
T10ac -   10-pin connector, black, in left engine compartment
T14 -   14-pin connector, black, on left in engine compartment
T17e -   17-pin connector, white, coupling station on electronics box, plenum chamber
T20g -   20-pin connector, red, on convenience system central control unit
T32 -   32-pin connector, blue, on dash panel insert
  12 -   Earth point, on left in engine compartmentA00592000801#VB12
  83 -   Earth connection 1, in front right wiring harness
# -   applicable up to model year 2006
## -   applicable from model year 2007

Audi A4 Current Flow Diagram No.  109 / 25
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Brake pad wear sender
G34 -   Front left brake pad wear sender
G35 -   Front right brake pad wear sender
J285 -   Control unit in dash panel insertA00592000804#BTJ285
T4n -   4-pin connector, black, front left
T4o -   4-pin connector, black, front right
T17b -   17-pin connector, green, coupling station on left of A-pillar
T32a -   32-pin connector, green, on dash panel insert
  179 -   Earth connection, in left headlight wiring harness

Didn't find what you were looking for? Try to find in:
- Mitchell onDemand online
- Alldata Online (Beta)

- ETKA ONLINE - login-pass from kolhosniki.ru

- NEW ELSA ONLINE - login-pass from kolhosniki.ru
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