A1 General Module Control Unit C X254 Connector End View
Pin Assignments At Plug Connector X254
| Pin | Type | Description /Signal type | Connection /Measuring notes |
|---|---|---|---|
| 1 | A | Signal, headlight vertical aim control Q22 motor, left with xenon headlight Ground signal, fresh air/recirculating air flap actuator | Left headlight with xenon headlight Fresh air/air recirculation flap motor |
| 2 | A | Signal, headlight vertical aim control Q12 motor, right with xenon headlight Ground signal, fresh air/recirculating air flap actuator | Right headlight with xenon headlight Fresh air/air recirculation flap motor |
| 3 | A | Signal, headlight vertical aim control Q21 motor, right with xenon headlight Signal, fresh air/recirculating air flap actuator | Right headlight with xenon headlight Fresh air/air recirculation flap motor |
| 4 | A | Negative activation | Headlight washer module |
| 5 | A | Signal, front right turn signal lamp | Front right turn signal lamp |
| 6 | Not used | ||
| 7 | A | Signal, front right parking light | Right parking light |
| 8 | A | Signal Rear right turn signal lamp | Right tail light |
| 9 | A | Signal, left auxiliary turn signal lamp | Front left auxiliary flasher unit |
| 10 | M | Ground | Ground connection X179 |
| 11 | A | Signal, front left parking light | Left parking light |
| 12 | A | Signal Right brake light | Right tail light |
| 13 | A | Signal, right auxiliary turn signal lamp | Front right auxiliary flasher unit |
| 14 | A | Signal Signal, left brake light | Left tail light |
| 15 | A | Signal, rear fog light | Left tail light |
| 16 | A | Signal, front left turn signal lamp | Front left turn signal lamp |
| 17 | A | Signal, rear fog light | Right tail light |
| 18 | A | Signal Rear left turn signal lamp | Left tail light |
| 19 | A | Signal, headlight vertical aim control Q22 motor, right | Right headlight |
| 20 | A | Signal, headlight vertical aim control Q12 motor, left | Left headlight |
| 21 | A | Signal, headlight vertical aim control Q21 motor, left | Left headlight |
| 22 | A | Control signal | Rear window defogger relay |
| 23 | A | Control signal | Wiper motor relay, fast/slow |
| 24 | A | Signal Side marker light, rear right | Side marker light, rear right |
| 25 | A | Signal Side marker light, right | Side marker light, right |
| 26 | Not used | ||
| 27 | E | Terminal 30 | Fuse F4 |
| 28 | Not used | ||
| 29 | A | Signal Tail light | Left tail light |
| 30 | A | Signal, center brake light | Center brake light |
| 31 | E | Terminal 30 | Fuel pump relay 1 |
| 32 | Not used | ||
| 33 | Not used | ||
| 34 | Not used | ||
| 35 | E | Brake light switch signal | Connector X10197 |
| 36 | E | Terminal R | Fuse F7 |
| 37 | A | Signal, headlight vertical aim control Q11 motor, right with xenon headlight Signal, fresh air/recirculating air flap actuator | Right headlight with xenon headlight Fresh air/air recirculation flap motor |
| 38 | A | Signal, headlight vertical aim control Q11 motor, left | Left headlight |
| 39 | A | Negative activation | Relay, windshield defroster |
| 40 | A | Control signal | Fog light relay |
| 41 | Not used | ||
| 42 | A | Signal Tail light | Right tail light |
| 43 | A | Control signal | Relay, rear window wiper motor |
| 44 | A | Control signal | Wiper motor relay, ON/OFF |
| 45 | E | Signal, data line ZV remote control | Central locking remote control |
| 46 | A | Supply Central locking remote control | Central locking remote control |
| 47 | A | Signal Side marker light, rear left | Side marker light, rear left |
| 48 | A | Signal Side marker light, left | Side marker light, left |
| 49 | Not used | ||
| 50 | Not used | ||
| 51 | Not used | ||
| 52 | Not used | ||
| 53 | E/A | K-bus signal | Connector X10116 |
| 54 | Not used |