| Number | X-pin, color | Description |
|---|---|---|
| X3554 | 9-pin, Black | Connector Pulse adapter |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | Not used | ||
| 2 | Not used | ||
| 3 | E | Voltage supply terminal R | Fuse box |
| 4 | Not used | ||
| 5 | M | Ground | Tachograph |
| 6 | Not used | ||
| 7 | E | Speed signal | Speed signal splice |
| 8 | Not used | ||
| 9 | M | Ground | Ground point |