| Number | X-pin, colour | Description |
|---|---|---|
| X664 | 3 -pin, Black | Plug connector Defroster flap motor |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | E | Positive activation | Heating and A/C control module |
| 2 | M | Ground, actuator motors | Heating and A/C control module |
| 3 | E/A | MI-bus | Heating and A/C control module |