Wiring Diagram AUDI A2 2003 - Battery - ignition/starter switch - starter inhibitor and reversing light relay - voltage stabiliser - hydraulic pump relay fuse
| A | Battery |
| B | Starter |
| C | Alternator |
| D | Ignition/starter switch |
| J226 | Starter inhibitor and reversing light relay |
| J514 | Electronic manual gearbox control unit |
| J532 | Voltage stabiliser |
| S88 | Strip fuse |
| S279 | Hydraulic pump relay fuse |
| T17a | 17-pin connector, red, in footwell, front left |
| T17e | 17-pin connector, blue, in footwell, front left |
| 65 | Earth point, left longitudinal member, rear, between B and C pillar |
| 500 | Screw connection -1- (30), on relay plate |
| A2 | Positive (+) connection (15), in dash panel wiring harness |
| A32 | Positive (+) connection (30), in dash panel wiring harness |
| A98 | Positive (+) connection -4- (30), in dash panel wiring harness |
| A104 | Positive (+) connection -2- (15), in dash panel wiring harness |
| B156 | Positive (+) connection (30a), in interior wiring harness |
| P2 | Positive (+) connection (30), in battery wiring harness |
| * | As of model year 2003 no longer fitted (phased-in modification) |
| ** | Phased-in modification |
Wiring Diagram AUDI A2 2003 - Electronic manual gearbox control unit - handbrake warning lamp control unit - ignition key withdrawal lock control unit
| F9 | Handbrake warning switch |
| J514 | Electronic manual gearbox control unit |
| J534 | Handbrake warning lamp control unit |
| J557 | Ignition key withdrawal lock control unit |
| N334 | Ignition key withdrawal lock solenoid valve |
| SB43 | Fuse -43- on fuse box |
| SB44 | Fuse -44- on fuse box |
| T10s | 10-pin connector, white, in footwell, front left |
| T17a | 17-pin connector, red, in footwell, front left |
| 12 | Earth point, in engine compartment, left |
| 238 | Earth connection -1-, in interior wiring harness |
| 277 | Earth connection -3-, in interior wiring harness |
| 279 | Earth connection -5-, in interior wiring harness |
| 284 | Earth connection -6-, in interior wiring harness |
| A24 | Connection (brake system monitoring), in dash panel wiring harness |
| B158 | Connection (S), in interior wiring harness |
| B172 | Positive (+) connection -4- (30), in interior wiring harness |
| * | As of model year 2003 no longer fitted (phased-in modification) |
| ** | Phased-in modification |
Wiring Diagram AUDI A2 2003 - Start/Stop operation switch - reversing light switch - convenience system central control unit - consumer switch-off relay
| E262 | Start/Stop operation switch |
| F4 | Reversing light switch |
| J393 | Convenience system central control unit |
| J511 | Consumer switch-off relay |
| J514 | Electronic manual gearbox control unit |
| SB29 | Fuse -29- on fuse box |
| SB38 | Fuse -38- on fuse box |
| T10s | 10-pin connector, white, in footwell, front left |
| T16 | 16-pin connector, diagnostic connector, black, near fuse box |
| T17 | 17-pin connector, brown, in footwell, front left |
| T17a | 17-pin connector, red, in footwell, front left |
| T17e | 17-pin connector, blue, in footwell, front left |
| 249 | Earth connection -2-, in interior wiring harness |
| A87 | Connection (RF (reversing light)), in dash panel wiring harness |
| B135 | Connection -1- (15a), in interior wiring harness |
| B155 | Connection -2- (TK (door contact)), in interior wiring harness |
| B259 | Connection (start/stop signal), in interior wiring harness |
| * | As of model year 2003 no longer fitted (phased-in modification) |
| ** | Phased-in modification |
Wiring Diagram AUDI A2 2003 - Selector lever gate detector switch - selector lever detector switch for N - selector lever detector switch for stopped - selector lever lock solenoid
| F207 | Diesel engine inhibitor switch |
| F257 | Selector lever gate detector switch |
| F258 | Selector lever detector switch for N |
| F259 | Selector lever detector switch for stopped |
| G272 | Selector lever potentiometer for forwards/backwards |
| J514 | Electronic manual gearbox control unit |
| L101 | Selector lever display illumination |
| N110 | Selector lever lock solenoid |
| T10s | 10-pin connector, white, in footwell, front left |
| T17a | 17-pin connector, red, in footwell, front left |
| T17i | 17-pin connector, black, below gear selector cover |
| 249 | Earth connection -2-, in interior wiring harness |
Wiring Diagram AUDI A2 2003 - Brake pressure switch - gear detector potentiometer -1- - gearbox hydraulic pressure sender - gearbox hydraulic pump relay
| F270 | Brake pressure switch |
| G239 | Gear detector potentiometer -1- |
| G240 | Gear detector potentiometer -2- |
| G270 | Gearbox hydraulic pressure sender |
| J510 | Gearbox hydraulic pump relay |
| J514 | Electronic manual gearbox control unit |
| N255 | Clutch actuator valve |
| T10m | 10-pin connector, black, in footwell, front left |
| T17a | 17-pin connector, red, in footwell, front left |
| V180 | Clutch actuator hydraulic pump |
| 179 | Earth connection, in left headlight wiring harness |
| U28 | Connection (0 V), in manual gearbox wiring harness |
| U29 | Connection (5 V), in manual gearbox wiring harness |
Wiring Diagram AUDI A2 2003 - Gearbox speed sender - clutch travel sender - electronic manual gearbox control unit - selector lever valve 1
| G38 | Gearbox speed sender |
| G162 | Clutch travel sender |
| J514 | Electronic manual gearbox control unit |
| N284 | Selector lever valve 1 |
| N285 | Selector lever valve 2 |
| N286 | Selector lever valve 3 |
| N287 | Selector lever valve 4 |
| U30 | Connection -2- (0 V), in manual gearbox wiring harness |
Wiring Diagram AUDI A2 2003 - Diesel direct injection system control unit - control unit with display in dash panel insert - electronic manual gearbox control unit
| E1 | Lighting switch |
| J248 | Diesel direct injection system control unit |
| J285 | Control unit with display in dash panel insert |
| J514 | Electronic manual gearbox control unit |
| L9 | Lighting switch light bulb |
| T10s | 10-pin connector, white, in footwell, front left |
| T16 | 16-pin connector, diagnostic connector, black, near fuse box |
| T17a | 17-pin connector, red, in footwell, front left |
| T17d | 17-pin connector, green, in footwell, front left |
| T32 | 32-pin connector, blue, on dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
| A121 | Connection (high bus), in dash panel wiring harness |
| A122 | Connection (low bus), in dash panel wiring harness |
| B145 | Positive (+) connection (58b), in interior wiring harness |
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