2014 Honda Accord Radiator Fan Operation or Lack Of..is it the Fuse,Relay,Motor or Computer AC Works
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- เผยแพร่เมื่อ 15 ก.ย. 2024
- Without a wiring diagram there is no proper way to check this system and the internet sure don't help and neither does TH-cam at this time. But I checked almost everything I can think of to see whats bugging this car and I'm stumped..waiting on a wiring diagram to trace the wires and operation..but I believe its either a cut wire or the computer..if I find the fix there will be a Part 2 . Enjoy... S8E406
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2 recommendations disconnecting the battery for 2-3 minutes and reseting the computer by turning the ignition switch on and off three times and on the 4th start the car. The resetting of the computer has saved me thousands of dollars on this car. Especially when the cluster turns into a Christmas tree.
I will try this if the car comes back to me...Thanks for the Tip...
@@alyoungcudaverdict
@@bronniesboy verdict is the customer traded the car in for a new car, I will never see this car again to find the fix..
The newer Honda systems have got a bit more complex and complicated for most people. The PCM on this vehicle sends a High and Or Low Fan request to the Relay Circuit Board which the Relay circuit board then operates the fans accordingly.. The relay Circuit board is the large Black Box that slides down into the under hood fuse box.. The Box actually controls many other system components, not just the fans.. It sounds like either a faulty Relay Circuit board unit or a possible wiring issue to the fan that is inoperative..
Thanks for that info, I had no way of getting a wiring diagram for this but I did tell the owner its possible the bcm or ecm controls the fan operation and I'm glad you verified this..next time its in I will look for that circuit board and see if its burnt or not
Good money it needs the relay and it wouldn't hurt to replace at least the RH fan since it's likely drawing excessive current which is causing the relay contacts to burn. I've got a 14 in the shop right now with the same symptom, only the LH fan operates. I have no power or ground at the RH cooling fan connector. Looking at the wiring diagram, its not likely a ground issue on my 14 since a lot of other loads that still work ground through G301. Also, if G301 was in bad shape, the LH fan wouldn't work but it does. I have no power or ground at my RH fan connector and again referring to the wiring diagram, that fan gets power and ground through the cooling fan relay assembly which is actually 3 relays in one. I haven't gone any further with checks as that looks like it would require disassembling the underhood fuseblock to do more checks directly at the relays(if even possible on this thing, idk, I'm a nissan man and that's how we do things). More than likely I'll end up swapping the relay to see what happens since in the real world that's likely going to be much less labor intensive and cheaper than disassembling the fuseblock to do the proper circuit checks.
I’m having this exact same issue and I have no idea what it is. I have checked everything you have checked and the problem remains this is so frustrating
Most likely its the computer, its job is to relay the message to turn on the fan
First question, did you fix this issue with the fan? I have an issue that is close, neither of the fans ran. I found a wiring print (not complete but it did help) It directed me to look at the ECM plugs and pins. I unhooked the 3 plugs, and the very next time I started the AC compressor came on, and so did the cooling fan. Since I am a mechanic, I had to duplicate the outcome again. Turned off the ignition and started the car again, neither fan worked. This led me down a rabbit hole. I found that if I unplugged the top plug on the ECM prior to starting my car, the AC would work and the cooling fan too. So, I planned to have Honda replace the ECM at a significant cost. here is the rabbit hole, the problem still exists. I have replaced every component, and serviced the R134 several times. Glad I have my own cart for that because that can get expensive. If you did fix this, can you share your repair. Thank you in advance. RW.
The car never came back, still driving around, I'm assuming it still has the issue
Without ac radiator fans never runs but as soon as i turn ac on both fans start running and its frequently turn on and off like 5 sec on off. I feel vibration which is annoying to me. Is it normal or should i get it checked?
Same
Its not normal that your 1 cooling fan is not working on its own, that is the engine cooling fan, but it is normal for both fans to be on with the AC On. But the vibration is the concern with usually means that the fan blade itself is broken or bent just like any spinning fan, it will vibrate. But definitely have it checked out, as you can see in the comments, it seems to be a common problem, but no one has come back on to post a fix and this car is no longer around.
1 of the comments states that the computer operates the fans, I don't have a definite answer but it was what I was thinking of...
I'm waiting also. Good troubleshooting.
Hello, how are you? I have exactly the same problem. Everything is fine. The fan is connected directly and it works fine. Everything is just like your video. I would like to know how you solved it.
The car never came back, it was eventually traded in..
I have an Acura ilx 2017 that has the exact same problem. I’m on yt looking for a solution. The engine idles weird and noticed it was the fan cutting on and off constantly drawing power making it idle weird. I have no ac unless I drive at speed and when I tap the other fan it spins right up. It’s the same engine I believe 4 cylinder 2.4l I think it’s a k24 engine. Looks similar to that accord.
@@hugoyebra2475 if you tap the fan and it spins, you found your problem, its the fan or the connection at the plug that operates the fan
Question is how did you replace it. That seems impossibly small to get to the bottom screws of my v6 2013
I didn't replace it..if you put power to the motor, it works..
@@alyoungcuda yeah mine don't work, I ordered 2 new a fan assemblies I just need.to remove them.from the radiator thing and replace with the new ones bit easier said than done
Have a similar problem, with my 2014 V6
driver side fan work sometimes and if I drive a long time and then stop the vehicle for few minutes the temperature goes up as fan is not working after a long drive ? As well even iwhen ac is on then both will not work .
Changed already the fan as well the computer part in fuse box with big black colour, but still facing the same .
Any recommendations or solutions?
If you haven't done it yet, change the coolant temperature sensors..
Relay circuit borad in fuse box under hood.. ac fan needs preasure so if low fan wont come on , ac preasure switch is in front of the fans so press on the pin where u load refrigerant , no hiss then needs refrigerant.. 5he relay circuit board is a stupid way of doing it. MY be able to re solder a new relay in it but hace to cut the back off the curcuit board box.. got the wiring if you need it from haynes manual
In the fuse box that big black box on the left is a large relay control board also
I have a 2013 Honda Odyssey EX-L nd when I cut the van off the fan still be on
The relay is stuck
This is the solution, the cable is cut, the positive between the two fans inside the black frost.
What's a black frost?
I will try same setuatuon when I remove highpressor switch connector compressor and fan same like on of on of why is not off??🤔
The fan works off the cooling system too along with the air conditioning system..
Did you find a fix yet ? My driver fan is not spinning at all. The passenger side is spinning. I was thinking about replacing the driver side fan and thought to check the fuses.
Customer never came back, he's running the car like that
@@alyoungcuda th-cam.com/video/yx_d63MBwQU/w-d-xo.html
I just watched this video about the fans. Idk if this true lol
Hey that second fan motor only comes on when the AC is on.
Yes but in this case its the only motor that works
I’m having the same issue ! I have a 2014 Honda Accord touring V6 any solutions you found ?
Not yet but I did swap the relays in the fuse box with the other ones that look the same and the customer states its not overheating so far..still can't find a wiring diagram.
@@alyoungcuda I ended up replacing the fan that was not working and it ended up fixing the problem, Super easy replacement, not sure if that’s the same with your problem but regardless great video !
I'm having neither fan working. I noticed the FCW system is showing as faulty so maybe that's stopping the fans from working.
I been tapping the motor on the back of the fan and it comes back on
That's a sign of a bad motor or a bad connection at the wiring or connection
Same here. I tap either fan that is not working and it starts to turn. So, now I guess I have to have the wiring checked before buying new fan motors.
Just change the fan its a fan motor
@alyoungcuda what was it??
@Realtyconnectiongroup what was it??
Did you fix it?
Car has not been back, but still running...
How do you jumó the motor?
Motor works when jumped straight with power
Power from battery to the connector and ground to connector.
I’m having this EXACT SAME PROBLEM RIGHT NOW ! Same car, same year! Don’t know what to do. My car runs fine and AC blows cool but I’m worried about not having that engine fan working like it’s supposed too.
This car is running like this for years the guy said and he has no overheating issues. As long as 1 fan is still working
@@alyoungcuda Thank you, I appreciate it 🙏🏾
How's fix pls explain in second vdo fast pls
As soon as I get the car back I can spend more time with it
On my 2014 Honda Accord both fans should come on when the A/C compressor clutch kicks in, my passenger side fan was bad and I replaced it, now it works, both kick on with A/C on, now I'm trouble shooting the coolant sensors, they used to come on in the summer when I turned engine off on a hot day and run for a few minutes then turn off. I may need to replace both upper and lower temp sensors. I never got a service engine light.
Since both fans are now working, the engine is cooled off enough that they don't need to be running with the engine off..thats a good thing.
@@alyoungcudahow did you get them to work?
@@sharlanajohnson1223 the customer is running on 1 fan, he never came back for me to look at it again.
Hey, I’m having the same issue did you ever resolve this problem? If anyone can please help.
Customer got rid of the car, guess it's not coming back to me to be checked again...
@@alyoungcuda ok thanks for replying
You can put it ground
That will only prove the motors are working after you check for power in and ground the motor, the idea here is to find out why it doesn't work as designed from the factory.
The problem was one of the 12's fuses the fifth one
Gonna check that the next time the car is in but the fuses were good at that time..
@@alyoungcuda i had the same problem, and one of the little fuses that are together in the black little box was blown
My cars doing the exact same thing, have you found a fix? I was having intermittent power to the starter problems and it turned out being a dirty battery ground, not sure if could be related. During that time the fans did not turn on at all and would overheat, and now its back to just the one fan working and the clutch clicking and it stopping, all the exactly the same.
Have not gotten a chance to check it out again, customer is driving it still.
Resolviste la falla ?
Not yet..still not overheating
I think pcm problem
I think so too
Where is the pcm?
Gd get to the mf point
@@chuckjones4766 ha ha mf, thanks for watching...😆