| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | A | Signal, seat heating on | Seat heating, right |
| | | |
| 2 | A | Signal, RDC initialisation button | Tyre pressure control system control unit |
| | | |
| 3 | | Not used | |
| | | |
| 4 | | Not used | |
| | | |
| 5 | | Not used | |
| | | |
| 6 | | Not used | |
| | | |
| 7 | E | Voltage supply Terminal 30 | Fuse F42 |
| | | |
| 8 | | Not used | |
| | | |
| 9 | | Not used | |
| | | |
| 10 | | Not used | |
| | | |
| 11 | | Not used | |
| | | |
| 12 | | Not used | |
| | | |
| 13 | A | Signal, seat heating on | Seat heating, left |
| | | |
| 14 | A | Signal, roller sunblind up | Sun shade motor |
| | | |
| 15 | A | Signal, roller sunblind down | Sun shade motor |
| | | |
| 16 | | Not used | |
| | | |
| 17 | | Not used | |
| | | |
| 18 | | Not used | |
| | | |
| 19 | A | Spatial sound function | Amplifier |
| | | |
| 20 | A | Temperature signal, seat heating | Seat heating, right |
| | | |
| 21 | A | Temperature signal, seat heating | Seat heating, left |
| | | |
| 22 | E | Terminal R | Fuse F12 |
| | | |
| 23 | E/A | K-bus signal | K-bus connector |
| | | |