| Number | X-pin, colour | Description |
|---|---|---|
| X1512 | 2 -pin, Black | Plug connector Pressure switch, rear lumbar support |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | E | Signal, pump | Connector, rear lumbar support |
| 2 | A | Signal, pump | Connector, pump for lumbar support |