2013 SE 3.5 58,000 miles
Been reading for hours and am running out of ideas......same problem, fans will not run with a/c on. Done so far: ordered a new motorcraft fan assembly from rockauto > installed and still no fans > fuse (60A w/o tow pkg) good > 12 volts to FCM good > each fan (old & new) run with 12 volts applied. The small white and blue control wire at the main plug in to the FCM is not receiving the signal from the PCM telling the fans to come on. Had the battery out yesterday for a couple hours and when I hooked it back up ....Shazam!! the fans came on!!......for about 2 or 3 minutes, then right back to no good
Am showing 2 trouble codes in Forscan, I can clear P0480 and it will come back after trying a/c again, can't clear P160A and in my reading am assuming it is there because of a few changes I did with Forscan like pk lamps as DRL's, disable bulb out check (for running LED's) etc.
So to wrap up, there are no temp or pressure sensors that could be the culprit and I am probably going to have to go to the dealer to have my PCM checked out. Anyone have anything else for advice??....and thanks!!