| Number | X-pin, colour | Description |
|---|---|---|
| X658 | 6-pin, black | Plug connector Passenger's seat heating switch |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | A | Passenger's seat heating | Passenger's seat heating Passenger's backrest heating |
| 2 | A | Front passenger's seat temperature sensor | Passenger's seat heating |
| 3 | M | Ground | Ground connector |
| 4 | E | Signal Locator lighting | Light switching centre control unit |
| 5 | E | Terminal 15 | Ignition switch |
| 6 | Not used | ||