| Number | X-pin, colour | Description |
|---|---|---|
| X1783 | 12-pin, black | Plug connector Control unit, active cruise control |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | M | Ground | Ground point |
| 2 | E/A | CAN-bus high | ACC connector |
| 3 | Not used | ||
| 4 | E/A | CAN-bus low | ACC connector |
| 5 | Not used | ||
| 6 | E/A | Diagnosis scan | Diagnostic connector |
| 7 | Not used | ||
| 8 | Not used | ||
| 9 | Not used | ||
| 10 | E | Voltage supply, terminal 15 | Fuse F21 |
| 11 | E/A | Diagnostic link TXD | Diagnostic connector |
| 12 | E | Voltage supply terminal 15/30 | Fuse F17 |