| Number | X-pin, colour | Description |
|---|---|---|
| X170 | 1 -pin, Black | Plug connector Hydraulic unit |
| X1176 | 15 -pin, Black | Plug connector Hydraulic unit |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | M | Ground | Ground point |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | E | Valve activation | ABS/ASC control unit |
| 2 | E | Valve activation | ABS/ASC control unit |
| 3 | E | B+ supply/feedback | Engine relay, terminal 87 |
| 4 | Not used | ||
| 5 | E | Valve activation | ABS/ASC control unit |
| 6 | E | Valve activation | ABS/ASC control unit |
| 7 | E | Valve activation | ABS/ASC control unit |
| 8 | E | Valve activation | ABS/ASC control unit |
| 9 | E | Valve activation | ABS/ASC control unit |
| 10 | E | Valve activation | ABS/ASC control unit |
| 11 | E | Valve activation | ABS/ASC control unit |
| 12 | Not used | ||
| 13 | E | Valve activation | ABS/ASC control unit |
| 14 | Not used | ||
| 15 | E | ABS valve supply via relay | Plug connector, motor relay activation feedback |