| Number | X-pin, colour | Description |
|---|---|---|
| X504 | 4-pin, Black | Plug connector Fog light switch |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | M | Ground | Ground connector |
| 2 | E | Night light signal | Light module |
| 3 | A | Signal, rear fog light ON | Light module |
| 4 | A | Signal, rear fog lights ON | Light module |