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Wiring Diagram AUDI A4 CABRIOLET 2003 - Headlight range control adjuster - onboard power supply control unit
| D | Ignition/starter switch |
| E1 | Lighting switch |
| E102 | Headlight range control adjuster |
| J519 | Onboard power supply control unit |
| T32b | 32-pin connector, grey, on onboard power supply control unit |
| Y7 | Automatic anti-dazzle interior mirror |
| 44 | Earth point, lower part of left A pillar |
| 81 | Earth connection -1-, in dash panel wiring harness |
| 501 | Screw connection -2- (30), on relay plate |
| A2 | Positive (+) connection (15), in dash panel wiring harness |
| A15 | Positive (+) connection (15), in dash panel wiring harness |
| A32 | Positive (+) connection (30), in dash panel wiring harness |
| B465 | Connection -1-, in main wiring harness |
Wiring Diagram AUDI A4 CABRIOLET 2003 - Door control unit - driver's side - door control unit - front passenger's side
| J386 | Door control unit, driver's side |
| J387 | Door control unit, front passenger's side |
| 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 |
| T20 | 20-pin connector, black, door, A pillar, left |
| T20a | 20-pin connector, black, door, A pillar, right |
| Y7 | Automatic anti-dazzle interior mirror |
| 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 anti-dazzle exterior mirrors |
AUDI A4 CABRIOLET 2003 Control units overview
| 1 - | Heated windscreen control unit -J505- |
| q | Location → page 804/4 |
| 2 - | CD changer -R41- |
| q | Location → page 804/12 |
| 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 804/10 |
| 5 - | Navigation operating electronics control unit -J402- |
| q | for navigation system RNS-D only |
| q | Location → page 804/10 |
| 5 - | Control unit with display for radio and navigation system -J503- |
| q | for navigation system RNS-Low only |
| q | Location → page 804/12 |
| Audi Cabriolet | Fitting Locations | No. 804 / 2 |
| 5 - | Navigation system with CD drive control unit -J401- |
| q | Location for navigation system NS-Low → page 804/11 |
| q | Location for navigation system RNS-E → page 804/11 |
| 6 - | Front passenger side door control unit -J387- |
| q | Location → page 804/14 |
| 7 - | Steering column electronics control unit -J527- |
| q | Location → page 804/8 |
| 8 - | Control unit in dash panel insert -J285- |
| q | Location → page 804/8 |
| 9 - | Telephone and telematics control unit, telematics -J526- |
| q | Location → page 804/13 |
| 10 - | Airbag control unit -J234- |
| q | Location → page 804/9 |
| 11 - | Driver door control unit -J386- |
| q | Location → page 804/14 |
| 12 - | Convenience system central control unit -J393- |
| q | Location → page 804/13 |
| Audi Cabriolet | Fitting Locations | No. 804 / 3 |
| 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- |
| 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 Cabriolet | Fitting Locations | No. 804 / 4 |
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| Audi Cabriolet | Fitting Locations | No. 804 / 5 |
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| Audi Cabriolet | Fitting Locations | No. 804 / 6 |
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| Audi Cabriolet | Fitting Locations | No. 804 / 7 |
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| Audi Cabriolet | Fitting Locations | No. 804 / 8 |
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| Audi Cabriolet | Fitting Locations | No. 804 / 9 |
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| Audi Cabriolet | Fitting Locations | No. 804 / 10 |
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| Audi Cabriolet | Fitting Locations | No. 804 / 11 |
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| Audi Cabriolet | Fitting Locations | No. 804 / 12 |
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| Audi Cabriolet | Fitting Locations | No. 804 / 13 |
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| Audi Cabriolet | Fitting Locations | No. 804 / 14 |
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