| Number | X-pin, colour | Description |
|---|---|---|
| X1783 | 12-pin, black | Component connector Control unit, active cruise control (ACC) |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | M | Ground | Ground point |
| 2 | A/E | Bus signal | Integrated supply module (IVM) |
| 3 | Not used | ||
| 4 | A/E | Bus signal | Integrated supply module (IVM) |
| 5 | E | Wake-up signal, terminal 15 | Car access control unit |
| 6 | Not used | ||
| 7 | Not used | ||
| 8 | Not used | ||
| 9 | Not used | ||
| 10 | E | Supply, terminal 30 | Fuse F7 |
| 11 | Not used | ||
| 12 | E | Supply, terminal 30 | Fuse F7 |