| Number | X-pin, colour | Description |
|---|---|---|
| X2790 | 9-pin, Black | Plug connector Relay, open gun mount |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | Not used | ||
| 2 | A | Signal, terminal 87 | Plug connector Open gun mount, roof |
| 3 | Not used | ||
| 4 | M | Ground | Ground connector |
| 5 | Not used | ||
| 6 | E | Voltage supply terminal 30 | Fuse F5 |
| 7 | Not used | ||
| 8 | E | Signal, terminal 85 | Gun mount push-button |
| 9 | Not used | ||