| Number | X-pin, colour | Description |
|---|---|---|
| X279 | 6 -pin, Black | Plug connector, passenger's door |
| Pin | Description | B: Socket housing S: Pin housing | |
|---|---|---|---|
| 1 | Ground | B: Ground point | |
| S: Connector terminal 31 | |||
| 2 | NTC signal | B: Driver's seat heating switch | |
| S: Driver's seat heating | |||
| 3 | Signal, seat heating on | B: Driver's seat heating switch | |
| S: Connector, driver's seat heating | |||
| 4 | P-bus signal line | B: P-bus connector | |
| S: Seat/steering column memory (SM/LSM) control unit | |||
| 5 | Not used | ||
| 6 | Voltage supply terminal 30 | B: Fuse F13 | |
| S: Connector terminal 30 | |||