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2015 Cooling Fan Overheat


Perspective

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I have a 2015 Ford Edge 2.0 with 109,000 miles and the other day I had to replace the battery. The next day,my wife was driving it and it overheated and the A/C was warm. As soon as it overheated it corrected and ran fine. When I got home I started it and the cooking fans wouldn't come on. The next day the drivers side fan comes on with A/C.

 

I purchased the OBDII Bluetooth scanner and downloaded Forscan.

 

When run the car and turn on the A/C I can see the low speed fan come on within the app and I can feel the 38 relay click but no fan. Shortly after I can feel the high speed fan come on in the app, feel the real 39 click and the drivers side fan comes on. After this, the 38 and 39 relays click together and only the drivers side fan comes on.

 

I checked continuity of both fans, and wire between relay 38 and fan and 39 and fan, checked continuity of all three relays, and I have tested the fans directly off the battery. In the past I have had issues with the the 39 relay getting stuck and the fan staying on after the car is shutoff.

 

The car runs fine now.

 

Any ideas?

 

How do these fans work? Is one fan high speed and one low speed? Or are these fans multi-speed depending on circumstances?

 

When should the driver's side fan be on?

 

I ordered a new Motorcraft fan from Rock but don't really want to use it if it isn't the issue.

 

Any thoughts would be appreciated.

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usually the problem is the relay with fans staying on all the time. in this case idk, still could be the same problem.

 

is the water pump verified working? coolant level and condition?

 

there aren't high and low speed fans, they are variable speed depending on need. above 40mph, fans are generally not needed as passive cooling is enough.

 

what codes if any did you get? the vehicle has shutters on the radiator for better warmup from ambient temp. could be stuck closed.

https://drive.google.com/file/d/18AMhjoa0FBSCAo9orRLKNKjHCseOJI8r/view?usp=share_link

 

https://parts.levittownfordparts.com/oem-parts/ford-fan-and-motor-f2gz8c607a

cooling fans for the 2015 my

https://drive.google.com/file/d/1ZKjzmCcIyPhF6WZ-5x0ZUQFWoRF2hENg/view?usp=share_link

2.0 replacement procedure

https://drive.google.com/file/d/1nJ6qs9_23xeS-jHOUK3vmTwEOeABgBSu/view?usp=share_link

2.0 module replacement procedure

Edited by WWWPerfA_ZN0W
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9 hours ago, WWWPerfA_ZN0W said:

usually the problem is the relay with fans staying on all the time. in this case idk, still could be the same problem.

 

is the water pump verified working? coolant level and condition?

 

there aren't high and low speed fans, they are variable speed depending on need. above 40mph, fans are generally not needed as passive cooling is enough.

 

what codes if any did you get? the vehicle has shutters on the radiator for better warmup from ambient temp. could be stuck closed.

https://drive.google.com/file/d/18AMhjoa0FBSCAo9orRLKNKjHCseOJI8r/view?usp=share_link

 

https://parts.levittownfordparts.com/oem-parts/ford-fan-and-motor-f2gz8c607a

cooling fans for the 2015 my

https://drive.google.com/file/d/1ZKjzmCcIyPhF6WZ-5x0ZUQFWoRF2hENg/view?usp=share_link

2.0 replacement procedure

https://drive.google.com/file/d/1nJ6qs9_23xeS-jHOUK3vmTwEOeABgBSu/view?usp=share_link

2.0 module replacement procedure

Thank you, very helpful. Thanks for the links.

 

I have no reason to suspect water pump at this point and coolant is within parameters and I have only had to add a little bit over the 80k miles I've owned this vehicle. I guess I can assume the low speed isn't working since I see it triggered but nothing happens and when  high-speed triggers the fan comes on.

 

I received P0217-00 Engine Coolant Overtemperature Condition for the overheat and P0481-00 Fan 2 Control Circuit.

 

It runs fine now and no codes so I am unsure if there is even a problem anymore. I did buy a new relay and nothing changed and also swapped relays. If I pull the 38 relay the fan will stop so I know/think it has something to do with the 39 relay circuit.

 

I noticed the fan has two wiring harnesses. One obviously for the power and I am guessing the other one is multiple different signal wires for the variable speed is this correct? I should probably test those for continuity.

 

Do you know which fan is considered fan 1 and 2?

 

It seems like you would want the passenger fan on with A/C since it is in front of the condenser.

 

I just checked the COOLPMP_A_STAT on forscan and it says "Short to..." which is either "Short to GND or Open" or "Short to Power" according to forscan.

Edited by Perspective
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Well, thanks for all the help. Yesterday I started my car and some sensor warnings came on and I had a low voltage code for some of the PIDS. I believe power steering and brakes or something was showing low voltage. The e brake didn't work either. After the car ran the warnings went away and brake started working but after a short drive and then parking at idle the temp started to rise. I also noticed the 32 relay would click from just touching it. After trouble shooting some of the wires I could tell something wasn't right at the fuse box but had to accept that this electrical stuff was out of my skill set and took it down the road to my local auto electrician. He quickly determined that the junction/fuse box was shot. I'm guessing this might be why I have had to replace the 38 fan relay twice over that last two years.

 

It's been awhile since I've had to pay someone else to fix my car but thankful for the online help.

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