| Number | X-pin, colour | Description |
|---|---|---|
| X630 | 13 -pin, Black | Plug connector Trailer socket |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | E | Left turn signal indicator | Trailer module (AHM) |
| 2 | E | Rear fog light | Trailer module (AHM) |
| 3 | M | Ground | Ground point |
| 4 | E | Right turn signal indicator | Trailer module (AHM) |
| 5 | E | Right tail light | Trailer module (AHM) |
| 6 | E | Brake light | Trailer module (AHM) |
| 7 | E | Left tail light | Trailer module (AHM) |
| 8 | E | Reversing light | Trailer module (AHM) |
| 9 | E | Power supply | Trailer module (AHM) |
| 10 | Not used | ||
| 11 | Not used | ||
| 12 | Not used | ||
| 13 | M | Ground | Ground point |