The external temperature reading is stuck on 37 degrees F and it's been 45-65 degrees all week. After forum searching I'm a little concerned that I may have a bigger problem, auto cabin temperature control. Is this true? And is this the correct part in question, Electronic Automatic Temperature Control (EATC)? Is there a way to clean or quick fix/check the sensor?

I have a 2010 SCREW FX4 with 50k miles.

 

And where is this little bugger located?

 

The inlet for the cabin temp is located to the bottom left of the AC controls. Its three or four slots in the plastic.

I dont know for sure if the temp sensor itself is outside or integrated into the control head