I own a BMW e90 2007. Recently the ventilation has stopped working, I thought it was due to the car battery being old and weak and after getting a new one nothing has changed. After replacing the blower motor thinking it was the problem it still wouldn't work, the motor itself doesn't spin, I checked all the fuses related to the climate controls and ventilation and they are all working correctly. I then connected the cars OBD and checked on INPA, all of the ac modules work and I can see that the buttons are registering. Has anyone got any ideas on what the problem could be and how to resolve it?