| Number | X-pin, colour | Description |
|---|---|---|
| X18722 | 4 -pin, Black | Blower connector |
| Pin | Description | B: Socket housing S: Pin housing | |
|---|---|---|---|
| 1 | Ground | B: Ground point | |
| S: Output stage | |||
| 2 | Not used | ||
| 3 | Not used | ||
| 4 | Component supply (terminal 15) | B: Heating blower relay | |
| S: Output stage | |||