| Number | X-pin, colour | Description |
|---|---|---|
| X58 | 9 -pin, Black | Plug connector Heating blower relay |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | Not used | ||
| 2 | E | Voltage supply terminal 30 | Fuse F28 |
| 3 | Not used | ||
| 4 | E | Relay activation Heating blower relay | Heating and A/C control module |
| 5 | Not used | ||
| 6 | A | Component supply (terminal 15) | Output stage |
| 7 | Not used | ||
| 8 | M | Ground | Ground connector |
| 9 | Not used | ||