how to fix radiator fans/coolant tempature/fan switch on 2001-2005 honda civic dx lx ex 

Big praise brother. You sent me right to the problem. I had already checked my fuses and relays, but after a half a day of searching the web for an answer to my problem, I came up empty. Found this video, BAM - solved. I appreciate you.

You got a sub today. I was lost on why my daughters fan wasn’t coming on. Thank you

Thank you so much, was having problems were I was over heating when sitting in traffic, I hope this solves that

Damn dawg. Thank you for uploading this video. I changed the thermostat thinking that was the problem. The car kept overheating. I noticed the fans had not turned on. I found your video and baaam! I used the paperclip trick to bypass the sensor. I couldn't have made it home without your help!

You reassured me that it was the fan temp switch I just didn’t know exactly where it was and stuff and It made me happy I caught it before any else happened. Pretty proud of myself and you earned my sub and like

Helpful video man. BTW this is the 7th generation Civic

Bro! I was working like since 10 am trying figure out what whent wrong it didn't turn on! I just got new radiator and new fans and is like 8 pm and I was hustling and crying and calling the mechanic saw this video! Was both ! I had a spare relay and tomorrow I get the little thing to plug in ! Nice ooouuuu! La Gente ! It works !

Junior, I think you just saved me hundreds of dollars, thank you!!!

are both fans supposed to go on at the same time??? because on my car only the left one comes on.

Hey my car fans work only with the ac on and did it like u said with the Clíp and it works fine without the ac on with the clip on Do u think that’s the problem on my car

Thank you, this video just saved me a bunch in labor.

Man I got one more problem did everything you did but the passenger side fan is not comen on. But the driver side does. Does that mean my bigger fan is out?

So was ur fan not turning on to begin with ? I’m just confused on how the paper clip method works

Thank you! For helping me diagnose my car! This fixed it!! 🎉🎉🎉

thanks so much for showing me how to diagnostic and replace the cooling fan part.

It* always sucks loosing a car, hopefully this video will give me a little more time with mine.

Hey bro I got a 05 civic as soon as the radiator fans come on it cuts off in a couple seconds you think my temp switch is bad? I have a slight overheating problem and it doesn't happen often. Please let me know what you think thank you

Definitely same as per my Car's problem Sir, Civic 1.7 2001 and the symptoms also same, thank you now I'm going to buy the new sensor

Life saver thanks so much. 2002 civic lx here

i dont know if this is my problem but i will check it out. just replaced the radiator my car keeps overheating. thank you.

Thanks for the help. That was the problem for me. My radiator got too hot and cracked at the plastic part cuss the fans werent spinning. Thank you so much.

I changed the fan switch sensor I did the paper clip trick my fan works so I changed the temperature switch sensor still ain’t activating the fans ? U think it’s the plug it’s self

Appreciate it bro! My fans work now :) You got my sub just off this!!

Thank you. The paper clip solved it!

So I know of this problem with my old Hondas, but with my 2003 civic even after replacing the temp sensor, the fans don’t kick on. When I put the paper clip in, the fans turn on What could this be?

Yo...your knowledge is exceptional. Helped me tramendously.

When i turned on my AC, my fan working fine, but when ac off my radiator fan doesn't work even i reached 200F temperature... I assume is the coolant switch also? What do you think sir? Thanks!

the music covers up what you are saying at the beginning . Good instruction

Hey bro I checked it the same way my fan doesn't turn on for the cooling fan I wonder if it's the switch closer to the engine or my fan is done for it does come on by hand but struggles to stay on

Hi, I had a problem like that. My dad replaced the sensor but my 03 honda civic ex still runs hot and it drinks up coolant. Could you tell me how to fix that problem?

Mine has a odd symptom when my ac is running my car will not overheat but when it’s off and I’m riding around with windows down temp wants to start rising… any ideas ? 2004 Civic 86,000 genuine mileage

Awesome thanks for posting this, I put a paper clip in mine until the sensor comes in. I did use electrical tape

They work when I put in the paper clip. But don’t when I plug it in and It’s a new switch? Any suggestions

if your new to my channel please subscribe help us get to 5000 subs that will motivate us to continue to shoot more helpfull videos for all the car junkies...dont forget to like this video thanks in advance.

This is good for the Honda... I need this info for a Dodge Stratus 2002..... Fan Temperature cooling switch, Where is it located ? Can't find it. My fan don't come on.

So I have encountered another problem, so far this video has helped me very much and the fan works when the paper clip is in. But problem is I replaced the fan switch brand new and for some reason when plugged in to the switch the fan doesn’t work. Only with the paper clip. Any suggestions?? Thanks in advance

What if relay and fuse checked and is good and paper clip diagnostic has been done but the fan on passengers side still not working??

Are the fans for A/C & radiator separate? I know they sit side by side in same housing but if I need to replace only one fan can I just replace the broken fan or are they both connected & if I replace one I have to replace other? 2005 civic DX 1.7 SOHC

My fans are off and on. My dad tested it to correct operating temp to see if they came on and they did but I keep checking under the hood after a drive home when I notice it rises and they don’t come on when the car starts overheating. Think it might be the same problem?

That paper clip trick helped me out bro good looks

IDK man, I jumped the pig tail just like you did, worked perfect, but when I installed the new sensor, fans still don’t work, WTH? Help!

My car overheats when I drive on the highway for a long time and then get stuck in traffic, you might know what the problem is?

Just had this problem literally today. Nice setup on the horn and fan relay switch

hey man i put the clip in the connector but as soon as i switch the key on the fans start spinning , the ac doesn’t even have to be on so i can’t tell if it’s a bad fan switch or not

Great video. No extra crap.. Thanks!

What do you mean run to full temperature set😱. I’m a instant new subscriber with this same car. I need all the help I can get . None of my windows roll down and my car runs hot if you don’t turn on the air conditioner. You made this look so easy except for the paper clip thing😖. Please help!

My right fan (driver side) doesn’t work at all. When I cut the ac off the left (passenger fan) cuts off. But I thought the passenger was radiator fan and driver side ac fan. When I did paper clip thing only passenger fan cuts on. I don’t know what to do. Any suggestions?

I'm in Adairsville where are you located. I might have to bring my car to.

Thanks bro..... same problem with my 2004 civic.... paper clip 👍🏻👍🏻 new subscriber

I replaced mine but coolant fan won’t come on unless I turn on the a/c, suggestions?

The birds gonna miss it too 😂

Brother one question the temperature gage not working what sensor should I replace thank you

Thanks so much I appreciate your help kept up🤛 Atlanta is beautiful weather you should come to Chicago in January it’s the best time of the year 🥶😅

Your the man! Just saved me!! Thank you

Thank you! Much appreciated this helped me a lot! Takecare and be safe

Found the problem thanks

Bro when I turn on my car the fans don’t spin and when I turn on the ac they do so I need a new fan switch ?

Hello sir i just bought honda civic ex 2004 , but it’s start heating up radiator looks new everything looks fine, plz help me

Aye bro I really appreciate It, you earned yourself a subscriber 💪🏽

Are the fans supposed to move while your heater is on??

You helped me drastically thanks my brother

can a bad temperature switch cause over heating? if the fans arent kicking in?

Thanks man, you saved me a lot of time troubleshooting!

Did that and you were right i replaced it but it doesn't read it ? Still not working after putting new one on 😢

Thank you Junior Martinez.

thank you, i was wondering why my fans weren't turning on at all

Mr. Junior.....Mucho gracias....well explain, easy to follow.....you are my angel

You help me out alot today thanks

My fans are not coming on. I replaced the original R18 motor with a new one myself. I replaced the CTS switchs but still the fans aren't coming on. Replaced the thermostat and I think it's working properly since both hoses (top and bottom) get hot after a while. When I unplug both the switches when the car is running both fans will come on. However the temp Guage inside the car goes all the way to overheat in just a matter of seconds. Im almost 100% sure my radiator and fans are not grounded and this is what is causing my problem. Any chance to can kind of show me to where the grounds are of the fans and radiator? Mine is a 2008 honda civic ex. (R18) motor. I would think the fans would have the grounds in almost the same locations. Any help would be greatly appreciated. TiA.

Thanx dawg !!!.....I kno ur from Texas!!!

So my 2002 Honda Civic coupe I got my temperature sensor and Thermostat change and it’s still over heating when I’m idling like it don’t do it at first but the longer I keep it on it get hotter

Do both fans have to come on?

Hey so I replaced my fan switch however now the fans still won’t turn on. They do with the paper clip but not when plugged in. I waited until the car got to its full temperature and I also no longer have heat. I just replaced the thermostat and radiator. I’m very much at a loss

Thank you solve my problem in minutes much appreciated

THANK YOU! MAJOR BIG HELP!!!!

Thanks brohh . U hellpp me to figure out my car problem . btw its 7th gen civic . 👍👍

Thank you so much my sensor is bad!!!!!!!

Pregunta hize ese procedimiento en mi civic 2001 pero me esta fundiendo los fusibles que crees que pueda hacer

Thank you sir good job!!!!

I have 2002 civic ex. When i reach highway speeds it stops overheating but when idling or moving with traffic it starts to overheat. I change the sensor you change in this video as well as one that sits right on top of the one in the video and still over heats. Now my fans kick in but i feel like they sound weak when running, like they are not running at full speed. What can cause them to run weak?

Thanks for your video, did try it but I haven't turn on the A/C yet but both cooling fan turns on, is that the same result? Thanks so much for your reply

I literally love you❤️

Where do you get the switch

Thanks man that helped me out!! I’m definitely subscribed now.

thanks men..highly appreciated..

Thanks for your help. I subscribed

Thank u thank u u are AMAZING!!! OHHH BLESS UR HEARTS

Thank you!! Helped me! Figure out it was a fan cooling switch

So if the fans or 1 of the fans don't come on, then the fan is bad?

what’s up man, i was wondering what my problem could be for my 03 civic. i replaced the temp cooling sensor and the thermostat and my check engine light is still coming on. Have any ideas? thanks bro

Thanks for the help. Appreciate you

Yo le hice el cambio hoy. El sensor de temperatura y por el momento no se me calienta! Muchas gracias!

i had tried it had the same symptoms, replaced the switch and the fan still won’t turn on

What about if only one fan comes on when you jump the temperature control cable?

I ran two wires from battery to fan that isn't working and it didn't work. I haven't checked the Temperature switch but I ordered a new one .let's see how it goes

You are the man homie

1st -great video! THANKS!!! on my niece's 2004 civic , I checked relays -all good. Checked fuses-all good. Got both fans to run on with paper clip test. i replaced the sensor with one from the Honda Dealer and now neither fan works . retested with the clip and both fans still come on. but neither fan comes on when clipped back on to sensor. Any ideas?

Thx homie, about to do this on mine.

You forgot about the other temp sensor the 17mm right ontop of that one my car still overheating and I changed that sensor already I’m guessing it’s the other sensor why my fans don’t turn on only when I turn on the AC

This video was a big help! Thank you! 🙏