| Number | X-pin, colour | Description |
|---|---|---|
| X663 | 4 -pin, Black | Plug connector Fresh air flap motor |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | E | Actuating signal Fresh air flap motor | Heating and A/C control module |
| 2 | A | Actuating signal Fresh air flap motor | Heating and A/C control module |
| 3 | E | Actuating signal Fresh air flap motor | Heating and A/C control module |
| 4 | A | Actuating signal Fresh air flap motor | Heating and A/C control module |