Hi,
It seems to be common problem, all of sudden AC Fan blower stopped working on 2009, x5-35d.
It shows full speed on display but no air coming out of vents.

I checked all fuses are ok

My question is: if I buy cheap diagnostic tool like "ELM327 Interface Bluetooth OBD2 OBDII Auto Scanner Tool Adapter TORQUE ANDROID" will that help to detect if problem with final stage resistor or blower or something else?
Thanks in advance
Kevin