Wiring Diagram AUDI A4 2005 - Left reversing lights
J519 | Onboard supply control unit |
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 |
T4af | 4-pin connector, black, behind side trim on rear left |
T6i | 6-pin connector, brown, behind side trim on rear left |
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 |
218 | Earth connection 1, in rear lid wiring harness |
A87 | Connection (RL), in dash panel wiring harness |
* | for models without US equipment only |
** | for models with US equipment only |
Wiring Diagram AUDI A4 2005 - Right reversing light - number plate light
J519 | Onboard supply control unit |
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 |
T4af | 4-pin connector, black, behind side trim on rear left |
T4l | 4-pin connector, black, in rear lid |
T8j | 8-pin connector, black, behind side trim on rear left |
T23 | 23-pin connector, black, on onboard supply control unit |
T32b | 32-pin connector, grey, on onboard supply control unit |
X | Number plate light |
218 | Earth connection 1, in rear lid wiring harness |
249 | Earth connection 2, in interior wiring harness |
B132 | Connection (number plate lights), in interior wiring harness |
* | for models without US equipment only |
** | for models with US equipment only |
Wiring Diagram AUDI A4 2005 - Rear window wiper motor - washer pump
J59 | X-contact relief relay |
J519 | Onboard supply control unit |
S236 | Fuse in fuse holder |
T8j | 8-pin connector, black, behind side trim on rear left |
T10b | 10-pin connector, black, on onboard supply control unit |
T17 | 17-pin connector, black, coupling station on left of A-pillar |
T23 | 23-pin connector, black, on onboard supply control unit |
V5 | Washer pump |
V12 | Rear window wiper motor |
219 | Earth connection 2, in rear lid wiring harness |
654 | Earth point, right D-pillar |
A34 | Connection (75x), in dash panel wiring harness |
* | applicable up to model year 2006 |
** | applicable from model year 2007 |
Wiring Diagram AUDI A4 2005 - Glass breakage sensors - heated rear window
C18 | Window aerial suppression filter |
G183 | Rear left side window glass breakage sensor |
G184 | Rear right side window glass breakage sensor |
J9 | Heated rear window relay |
T6i | 6-pin connector, brown, behind side trim on rear left |
Z1 | Heated rear window |
Z24 | Heated rear window with window aerial |
52 | Earth point, on left in rear lid |
53 | Earth point, on right in rear lid |
219 | Earth connection 2, in rear lid wiring harness |
B180 | Connection (heated rear window), in interior wiring harness |
* | for models with anti-theft alarm system (ATA) only |
** | for models with radio only |
*** | for models without radio only |
Wiring Diagram AUDI A4 2005 - Luggage compartment light - rear lid light
E1 | Light switch |
J285 | Control unit in dash panel insert |
J393 | Convenience system central control unit |
T6i | 6-pin connector, brown, behind side trim on rear left |
T8j | 8-pin connector, black, behind side trim on rear left |
T12d | 12-pin connector, brown, near glove compartment |
T12h | 12-pin connector, black, on convenience system central control unit (used to be connector 1) |
T17f | 17-pin connector, orange, coupling station on left of A-pillar |
T32a | 32-pin connector, green, on dash panel insert |
W | Front interior light |
W3 | Luggage compartment light |
W6 | Glove compartment light |
W51 | Rear lid light |
218 | Earth connection 1, in rear lid wiring harness |
A175 | Connection (58s), in dash panel wiring harness |
B250 | Positive connection in roof wiring harness |
* | for models with key operated switch to deactivate airbag only |
** | applicable up to model year 2005 |
*** | applicable from model year 2006 |
Wiring Diagram AUDI A4 2005 - Rear lid contact switch for anti-theft alarm - rear lid release motor
F123 | Rear lid contact switch for anti-theft alarm system |
F248 | Release button for rear lid lock cylinder |
J393 | Convenience system central control unit |
T4l | 4-pin connector, black, in rear lid |
T6i | 6-pin connector, brown, behind side trim on rear left |
T8j | 8-pin connector, black, behind side trim on rear left |
T12h | 12-pin connector, black, on convenience system central control unit (used to be connector 1) |
T16i | 16-pin connector, brown, on convenience system central control unit (used to be connector 5) |
T20g | 20-pin connector, red, on convenience system central control unit (used to be connector 4) |
V139 | Rear lid release motor |
52 | Earth point, on left in rear lid |
218 | Earth connection 1, in rear lid wiring harness |
653 | Earth point, left D-pillar |
B154 | Connection 1 (DCt), in interior wiring harness |
* | for models with anti-theft alarm system (ATA) only |
Wiring Diagram AUDI A4 2005 - Aerials for radio
J393 | Convenience system central control unit |
R | Radio |
R1 | Aerial connection |
R64 | Remote control receiver for auxiliary heating |
R108 | Left aerial module |
T16i | 16-pin connector, brown, on convenience system central control unit (used to be connector 5) |
* | Rear left side window |
** | Rear right side window |
*** | for models with auxiliary heating only |
**** | wire could dropped for radio chorus |
Wiring Diagram AUDI A4 2005 - Aerials for radio/navigation system (without TV receiver)
J393 | Convenience system central control unit |
J401 | Navigation system with CD drive control unit |
R1 | Aerial connection |
R64 | Remote control receiver for auxiliary heating |
R108 | Left aerial module |
T16i | 16-pin connector, brown, on convenience system central control unit (used to be connector 5) |
Z24 | Heated rear window with window aerial |
* | Rear left side window |
** | Rear right side window |
*** | for models with auxiliary heating only |
**** | for models without TV receiver only |
Wiring Diagram AUDI A4 2005 - Aerials for radio/navigation system (with TV receiver)
J393 | Convenience system central control unit |
J401 | Navigation system with CD drive control unit |
J415 | Navigation system tuner for TV |
R1 | Aerial connection |
R64 | Remote control receiver for auxiliary heating |
R108 | Left aerial module |
R109 | Right aerial module |
T16i | 16-pin connector, brown, on convenience system central control unit (used to be connector 5) |
Z24 | Heated rear window with window aerial |
* | Rear left side window |
** | Rear right side window |
*** | for models with auxiliary heating only |
**** | for models with TV receiver only |
AUDI A4 2005 Control units overview
1 - | Heated windscreen control unit -J505- |
q | Location → page 804/4 |
2 - | CD changer -R41- |
q | Location → page 804/13 |
3 - | Fresh air blower control unit -J126- |
q | Location ⇒ page → 804/7 |
4 - | Headlight range control, control unit -J431- |
q | Location → page 804/7 |
5 - | Radio -R- |
q | not for navigation system |
q | Location → page 804/11 |
5 - | Navigation operating electronics control unit -J402- |
q | for navigation system RNS-D only |
q | Location → page 804/11 |
5 - | Control unit with display for radio and navigation system -J503- |
q | for navigation system RNS-Low only |
q | Location → page 804/13 |
Audi A4 | Fitting Locations | No. 804 / 2 |
5 - | Navigation system with CD drive control unit -J401- |
q | Location for navigation system NS-Low → page 804/12 |
q | Location for navigation system RNS-E → page 804/12 |
6 - | Telephone and telematics control unit, telematics -J526- |
q | Location → page 804/14 |
6 - | Language input control unit -J507- |
q | Location → page 804/14 |
7 - | Steering column electronics control unit -J527- |
q | Location → page 804/8 |
8 - | Front passenger side door control unit -J387- |
q | Location → page 804/16 |
9 - | Display control unit in dash panel insert -J285- |
q | Location → page 804/8 |
10 - | Airbag control unit -J234- |
q | Location → page 804/9 |
11 - | Driver door control unit -J386- |
q | Location → page 804/16 |
Audi A4 | Fitting Locations | No. 804 / 3 |
12 - | Convenience system central control unit -J393- |
q | Location → page 804/15 |
13 - | Onboard power supply control unit -J519- |
q | Location → page 804/9 |
14 - | Motronic control unit -J220- |
14 - | Diesel direct injection system control unit -J248- |
14 - | Simos control unit -J361- |
q | Location → page 804/4 |
15 - | Automatic gearbox control unit -J217- |
q | not for models with multitronic® |
q | Location → page 804/5 |
16 - | ABS control unit -J104- |
q | Location → page 804/6 |
17 - | Automatic gearbox control unit -J217- |
q | for models with multitronic® only |
q | Location → page 804/5 |
18 - | Radiator fan control unit -J293- |
q | Location → page 804/6 |
Audi A4 | Fitting Locations | No. 804 / 4 |
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Audi A4 | Fitting Locations | No. 804 / 15 |
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Audi A4 | Fitting Locations | No. 804 / 16 |
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