| Number | X-pin, colour | Description |
|---|---|---|
| X651 | 6-pin, black | Plug connector Driver's seat heating switch |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | A | Driver's seat heating | Driver's backrest heating Driver's seat heating |
| 2 | A | Driver's seat temperature sensor | Driver'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 | ||