| Number | X-pin, colour | Description |
|---|---|---|
| X997 | 2 -pin, Black | Plug connector Metering pump (independent heating) |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | E | Supply Metering pump (independent heating) | Independent heating/ventilation control unit |
| 2 | M | Ground Metering pump (independent heating) | Ground point |