| Number | X-pin, colour | Description |
|---|---|---|
| X1789 | 3-pin, Natural | Plug connector Central locking (ZV) switch |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | A | Close signal | General module |
| 2 | E | Night light signal | Connector, night lights |
| 3 | M | Ground | Ground connector |