Radiator fan always on at high speed?

Hi, my 2017 CX-9 Signature radiator fan runs at high speed all the time and the temperature seems ok on the dash. Does anyone have any advice on what could be causing this..? Thanks in advance!
 
Here's a recent thread about the Engine control sensor. Since your dash reads an ok temperature maybe in your case you have an issue with the actual switch or circuit that controls the fan, which is shorted or in the closed postion.



The test points for the cooling fan relay are found here (CX5) CX9 hopefully will be very similar.

 

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