| Number | X-pin, colour | Description |
|---|---|---|
| X740 | 3 -pin, Black | Plug connector Passenger's seat heating |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | M | Ground | Ground connector |
| 2 | E | NTC signal | Passenger's seat heating switch |
| 3 | E | Signal, seat heating on | Passenger's seat heating switch |