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Wiring Diagram AUDI A4 2006 - Ignition/starter switch - headlight range control regulator - fuses
| A | Battery |
| D | Ignition/starter switch |
| E102 | Headlight range control regulator |
| J285 | Control unit in dash panel insert |
| S10 | Fuses in relay plate fuse holder |
| S88 | Strip fuse |
| T32a | 32-pin connector, green, on dash panel insert |
| 11 | Earth point, in battery box |
| 238 | Earth connection 1, in interior wiring harness |
| 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 |
| A32 | Positive connection (30), in dash panel wiring harness |
| A57 | Positive connection 3 (30), in dash panel wiring harness |
| A114 | Connection (headlight range control), in dash panel wiring harness |
| A175 | Connection (58s), in dash panel wiring harness |
| * | applicable up to model year 2005 |
| ** | applicable from model year 2006 |
Wiring Diagram AUDI A4 2006 - Light switch - fuses
| E1 | Light switch |
| E23 | Front and rear fog light switch |
| J59 | X-contact relief relay |
| J519 | Onboard supply control unit |
| S19 | Fuses in relay plate fuse holder |
| 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 |
| A19 | Connection (58d), in dash panel wiring harness |
| A34 | Connection (75x), in dash panel wiring harness |
| B132 | Connection (number plate lights), in interior wiring harness |
| * | for models with automatic headlight switching / surround lighting only, ⇒ applicable Current Flow Diagram |
| ** | applicable from January 2005 |
| *** | for Avant models, ⇒ see applicable Current Flow Diagram: Avant models, rear |
| # | applicable up to model year 2006 |
| ## | applicable from model year 2007 |
Wiring Diagram AUDI A4 2006 - Left headlight - left fog light
| J519 | Onboard supply control unit |
| 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 with headlight range control only |
| ** | for models with headlights lowline, headlights highline only ⇒ applicable Current Flow Diagram |
Wiring Diagram AUDI A4 2006 - Right headlight - right fog light
| J519 | Onboard supply control unit |
| 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 lowline, headlights highline only ⇒ applicable Current Flow Diagram |
AUDI A4 2006 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 / 5 |
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| Audi A4 | Fitting Locations | No. 804 / 6 |
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| Audi A4 | Fitting Locations | No. 804 / 7 |
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| Audi A4 | Fitting Locations | No. 804 / 8 |
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| Audi A4 | Fitting Locations | No. 804 / 9 |
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| Audi A4 | Fitting Locations | No. 804 / 10 |
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| Audi A4 | Fitting Locations | No. 804 / 11 |
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| Audi A4 | Fitting Locations | No. 804 / 12 |
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| Audi A4 | Fitting Locations | No. 804 / 13 |
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| Audi A4 | Fitting Locations | No. 804 / 14 |
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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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