Wiring Diagram AUDI A4 2003 - CAN bus wires (drive train)
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Automotive Electricians Portal FZCO
Automotive Electricians Portal FZCO
| J... | Engine control units |
| J104 | ABS with EDL control unit |
| J217 | Automatic gearbox control unit |
| J234 | Airbag control unit |
| T17 | 17-pin connector, black, connector point, A pillar, left |
| T17d | 17-pin connector, red, connector point, electronics box, plenum chamber |
| A121 | Connection (high bus), in dash panel wiring harness |
| A122 | Connection (low bus), in dash panel wiring harness |
| D159 | Connection (high bus), in engine compartment wiring harness |
| D160 | Connection (low bus), in engine compartment wiring harness |
| * | Only models with automatic gearbox (multitronic) |
| ** | Only models with five-speed automatic gearbox (AG5) |
Wiring Diagram AUDI A4 2003 - CAN bus wires - control unit with display in dash panel insert
| J285 | Control unit with display in dash panel insert |
| J527 | Steering column electronics control unit |
| T16a | 16-pin connector, black, on steering column electronics control unit |
| T32 | 32-pin connector, blue, on dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| A121 | Connection (high bus), in dash panel wiring harness |
| A122 | Connection (low bus), in dash panel wiring harness |
| A146 | Connection (convenience CAN bus, high), in dash panel wiring harness |
| A147 | Connection (convenience CAN bus, low), in dash panel wiring harness |
| A178 | Connection (infotainment CAN bus, high), in dash panel wiring harness |
| A179 | Connection (infotainment CAN bus, low), in dash panel wiring harness |
Wiring Diagram AUDI A4 2003 - CAN bus wires (convenience features)
| E87 | Control and display unit for air conditioner/Climatronic |
| J... | Door control units |
| J364 | Additional heater control unit |
| J393 | Convenience system central control unit |
| J446 | Parking aid control unit |
| J519 | Vehicle voltage control unit |
| T10k | 10-pin connector, white, connector point, A pillar, left |
| T16f | 16-pin connector, brown, on parking aid control unit |
| T32b | 32-pin connector, grey, on vehicle voltage control unit |
| A146 | Connection (convenience CAN bus, high), in dash panel wiring harness |
| A147 | Connection (convenience CAN bus, low), in dash panel wiring harness |
| A178 | Connection (infotainment CAN bus, high), in dash panel wiring harness |
| A179 | Connection (infotainment CAN bus, low), in dash panel wiring harness |
Wiring Diagram AUDI A4 2003 - CAN bus wires (navigation and infotainment)
| J402 | Operating electronics control unit, navigation |
| J415 | Navigation/TV tuner |
| R94 | Navigation interface |
| T12f | 12-pin connector, black, under rear seat bench |
| T26 | 26-pin connector, black, on operating electronics control unit, navigation |
| A148 | Connection (navigation CAN bus, high), in dash panel wiring harness |
| A149 | Connection (navigation CAN bus, low), in dash panel wiring harness |
| A178 | Connection (infotainment CAN bus, high), in dash panel wiring harness |
| A179 | Connection (infotainment CAN bus, low), in dash panel wiring harness |
| * | Only models with radio navigation system |
| ** | Only models with radio navigation system and TV tuner |
Wiring Diagram AUDI A4 2003 - CAN bus wires (infotainment)
| J401 | Navigation system with CD drive control unit |
| J507 | Control unit for voice control |
| J526 | Telephone/telematics control unit |
| R99 | Chip card reader unit |
| T12d | 12-pin connector, brown, near glove box |
| T20e | 20-pin connector, black, navigation system with CD drive control unit |
| T46 | 46-pin connector, black, on telephone/telematics control unit |
| A178 | Connection (infotainment CAN bus, high), in dash panel wiring harness |
| A179 | Connection (infotainment CAN bus, low), in dash panel wiring harness |
| * | Only models with telephone/telematics (USA) |
| ** | Optional equipment for models with navigation system |
Wiring Diagram AUDI A4 2003 - CAN bus wires (infotainment)
| J402 | Operating electronics control unit, navigation |
| R | Radio |
| T20d | 20-pin connector, black, radio connector I |
| A178 | Connection (infotainment CAN bus, high), in dash panel wiring harness |
| A179 | Connection (infotainment CAN bus, low), in dash panel wiring harness |
| * | Only models with radio navigation system (Japan) |
AUDI A4 2003 Control units overview
Control units overview | | | | Audi A4 | Fitting Locations | No. 804 / 2 |
|
| q | Location for navigation system RNS-E |
| Audi A4 | Fitting Locations | No. 804 / 3 |
|
| Diesel direct injection system control unit -J248- |
| 17 - | Automatic gearbox control unit -J217- |
| q | for models with multitronic® only |
AUDI A4 2003 Motronic control unit -J220-, diesel direct injection system control unit -J248-, Simos control unit -J361-
Motronic control unit -J220-, diesel direct injection system control unit -J248-, Simos control unit -J361- | | | | On electronics box in plenum chamber | | | |
AUDI A4 2003 Automatic gearbox control unit -J217-
Automatic gearbox control unit -J217- | | not for models with multitronic® |
| | | In electronics box in plenum chamber | | for models with multitronic® only | | | |
AUDI A4 2003 ABS control unit -J104-
AUDI A4 2003 Radiator fan control unit -J293- | Radiator fan control unit -J293- | | | AUDI A4 2003 Fresh air blower control unit -J126-
AUDI A4 2003 Headlight range control, control unit -J431- | Headlight range control, control unit -J431- | | | AUDI A4 2003 Steering column electronics control unit -J527-
AUDI A4 2003 Display control unit in dash panel insert -J285- | Display control unit in dash panel insert -J285- | | | | In the dash panel behind the display unit | | | |
AUDI A4 2003 Airbag control unit -J234-
AUDI A4 2003 Onboard power supply control unit -J519- | Onboard power supply control unit -J519- | | | | Behind driver's storage compartment | | | |
AUDI A4 2003 Trailer detector control unit -J345-
AUDI A4 2003 Parking aid control unit -J446- | Parking aid control unit -J446- | | | | In left luggage compartment, behind side trim, on apron | | | |
AUDI A4 2003 Navigation operating electronics control unit -J402-
Navigation operating electronics control unit -J402- | | for navigation system RNS-D only |
| |
AUDI A4 2003 Radio -R-Radio -R- |
| not for navigation system | | | |
AUDI A4 2003 Navigation system with CD drive control unit -J401-
Navigation system with CD drive control unit -J401- | | For navigation system NS-Low only |
| | | For navigation system RNS-E only | | | |
AUDI A4 2003 Control unit with display for radio and navigation system -J503-
Control unit with display for radio and navigation system -J503- | | for navigation system RNS-Low only |
AUDI A4 2003 CD changer -R41-
CD changer -R41- |
| | AUDI A4 2003 Telephone and telematics control unit, telematics -J526-
Telephone and telematics control unit, telematics -J526- | | For models with telematics only |
| in electronics box under front passenger seat |
| |
AUDI A4 2003 Language input control unit -J507-Language input control unit -J507- |
| For models with telematics only | | in electronics box under front passenger seat | | | |
AUDI A4 2003 Convenience system central control unit -J393-
Convenience system central control unit -J393- | | | AUDI A4 2003 Driver door control unit -J386-
AUDI A4 2003 Front passenger side door control unit -J387- | Front passenger side door control unit -J387- | | | | In window regulator motor integrated | | | |
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