Wiring Diagram AUDI A4 2007 - Fuses - ABS with EDL control unit
| D | Ignition/starter switch |
| J104 | ABS with EDL control unit |
| S7 | Fuse in fuse box/relay plate |
| S13 | Fuse in fuse box/relay plate |
| S14 | Fuse in fuse box/relay plate |
| S123 | ABS control unit fuse 1 |
| S242 | Fuse in fuse box |
| T17b | 17-pin connector, green, connector point, A pillar, left |
| 26 | Earth point, on front apron |
| 179 | Earth connection, in left headlight wiring harness |
| 501 | Screw connection -2- (30), on relay plate |
| A2 | Positive (+) connection (15), in dash panel wiring harness |
| A20 | Connection (15a), in dash panel wiring harness |
| A32 | Positive (+) connection (30), in dash panel wiring harness |
| A57 | Positive (+) connection -3- (30), in dash panel wiring harness |
| * | Only applies to models with petrol engine |
Wiring Diagram AUDI A4 2007 - Speed sensors - ABS with EDL control unit
| G44 | Rear right speed sensor |
| G45 | Front right speed sensor |
| G46 | Rear left speed sensor |
| G47 | Front left speed sensor |
| J104 | ABS with EDL control unit |
| J402 | Operating electronics control unit, navigation |
| T4n | 4-pin connector, black, front left |
| T4o | 4-pin connector, black, front right |
| T17 | 17-pin connector, black, connector point, A pillar, left |
| T26 | 26-pin connector, black, on operating electronics control unit, navigation |
| A133 | Connection (ABS impulses, left), in dash panel wiring harness |
| * | Only models with front-wheel drive |
| ** | Only models with four-wheel drive |
| *** | For navigation system |
Wiring Diagram AUDI A4 2007 - Steering angle sender - ABS with EDL control unit
| F9 | Handbrake warning switch |
| G85 | Steering angle sender |
| J104 | ABS with EDL control unit |
| J393 | Convenience system central control unit |
| J527 | Steering column electronics control unit |
| T12i | 12-pin connector, black, on convenience system central control unit (used to be connector III) |
| T16a | 16-pin connector, black, on steering column electronics control unit |
| T17 | 17-pin connector, black, connector point, A pillar, left |
| T17b | 17-pin connector, green, connector point, A pillar, left |
| 33 | Earth point, behind dash panel, right |
| 135 | Earth connection -2-, in dash panel wiring harness |
| A24 | Connection (brake system monitoring), in dash panel wiring harness |
| A27 | Connection (speed signal), in dash panel wiring harness |
| A121 | Connection (high bus), in dash panel wiring harness |
| A122 | Connection (low bus), in dash panel wiring harness |
| • | Data bus wire (CAN bus) |
| * | Applicable from model year 2003 |
| ** | As of model year 2004 no longer fitted |
| *** | Applicable from model year 2004 |
Wiring Diagram AUDI A4 2007 - Brake pressure sender - yaw rate sender - ABS with EDL control unit - ABS valves - ABS hydraulic pump
| G201 | Brake pressure sender -1- |
| G202 | Yaw rate sender |
| J104 | ABS with EDL control unit |
| N99 | ABS inlet valve, front right |
| N100 | ABS outlet valve, front right |
| N101 | ABS inlet valve, front left |
| N102 | ABS outlet valve, front left |
| N133 | ABS inlet valve, rear right |
| N134 | ABS inlet valve, rear left |
| N135 | ABS outlet valve, rear right |
| N136 | ABS outlet valve, rear left |
| N225 | Electronic stabilisation program switch valve -1- |
| N226 | Electronic stabilisation program switch valve -2- |
| N227 | Electronic stabilisation program high pressure valve -1- |
| N228 | Electronic stabilisation program high pressure valve -2- |
| T17b | 17-pin connector, green, connector point, A pillar, left |
| V39 | ABS return flow pump |
Wiring Diagram AUDI A4 2007 - Traction control system switch - ABS with EDL control unit
| E132 | Traction control system switch |
| F | Brake light switch |
| J104 | ABS with EDL control unit |
| J285 | Control unit with display in dash panel insert |
| T10a | 10-pin connector, brown, connector point, electronics box, plenum chamber |
| T16 | Diagnostic connector, black, near fuse box |
| T17b | 17-pin connector, green, connector point, A pillar, left |
| T32 | 32-pin connector, blue, on dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| 33 | Earth point, behind dash panel, right |
| 238 | Earth connection -1-, in interior wiring harness |
| A18 | Connection (54), in dash panel wiring harness |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
| A104 | Positive (+) connection -2- (15), in dash panel wiring harness |
| A154 | Connection (brake pedal switch), in dash panel wiring harness |
| A175 | Connection (58s), in dash panel wiring harness |
| * | Only applies to models with petrol engine |
| ** | Only applies to models with diesel engine |
| *** | See applicable diesel engine Current Flow Diagram |
AUDI A4 2007 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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