drs120new

Wow. Thank You for the in depth theory of operation. I purchased the Motorcraft fan assembly (w/o towing) from Rockauto for $230 shipped to my house. I will have it Thursday and will be installing it Friday. I pulled the 2 prong plug from the FCM and put 12 Vdc across the red and black leads. No fans spinning. Pulled the plug from the driver's side fan, still no spin. Motors obviously fried and the circuit open.

It would still be nice to know if I am getting a good signal from the PCM.

I pulled the 2 prong plug off the FCM and put battery power to the fans directly. Fans did not spin. Took the connector off the driver's side fan, still no spin. How can I test that the output from the PCM is good? If that is OK, I'll buy a Motorcraft fan assembly from Rock Auto. Right now it looks like I need 2 fans anyway.

I am having an overheat, and A/C problem, with my 2007 Lincoln MKX. I have isolated the problem down to the cooling fan system but need help in how to troubleshoot/isolate down to the cooling fans, Fan Control Module, and PCM components. I just don't want to go out and buy/replace parts only to find out it is something else. Any suggestions, links, pictures, etc ?

I am having similar problems with my 2007 Lincoln MKX. Does anyone know how to troubleshoot the cooling fan system down to the Cooling fans, the Fan Control Module, and the PCM components? I just don't want to go out and buy and replace and find out it is something else.