How to turn off AC on Defrost in 2006-2011 Honda Civic - IMPROVES POWER AND FUEL ECONOMY!
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- เผยแพร่เมื่อ 29 ก.ย. 2024
- How to disable the AC running all the time when using the defrost or defrost+floor vent positions. See my other video for the 2001-2005 procedure. This is the procedure for the 2006-2011 Civic:
1. Turn the ignition switch to the ON position (you do NOT have to start the engine).
2. Turn the fan knob to the OFF position.
3. Switch to the FACE ONLY vent mode (or DEFFROST if returning back to factory settings).
4. Turn the temp knob to the COLDEST setting.
5. Turn the ignition switch to the OFF position.
6. Hold down the RECIRCULATION and A/C buttons simultaneously.
7. While holding those two buttons, turn the ignition switch to the ON position again.
8. Keep holding them down until the light stops flashing/goes solid, then release them.
NOTE: Remeber to turn on the fan to test the AC functions otherwise the AC will remain off.
I forgot to thank you for posting the steps in your description. I printed them out and put them in my owners manual. I wish more people would use the description section so effectively! Thanks again.
Awesome! I wish more people would read the description section lol
I tried it in a 2002 Civic and it works, thanks man, no more AC in defrost mode.
I used this video the same week you posted it. I bought my 07 Si in 2013, and hated that the AC stayed on.. I still have the car and drive it every day.
Why I'm back to this video is beyond me..
Mike Andrews haha! Some say it's addictive and they can't stop watching it lol
@@denispoirier19I watch this video everyday. I am subscriber #1000, do I win something?
Mine worked I was wondering why was air blowing while I was driving it was annoying as heck came across this video and it helped solve the problem thanks
This video saved me .22 cents a year on fuel thanks
Congrats! You can buy an extra coffee every 5 years now.
@@denispoirier19 That would be 30 years for Starbucks! :) AC steals a lot of horsepower I think. As you said, you can always go back. I changed my incandescent map ,dome and trunk lights to brighter led lamps too. Now they are actually usable.
Great tip, thanks !!!! Stock configuration does stay in "AC" mode if you go to floor only from Defrost or mix defrost/floor.
So that can confuse you if you think the 3 left choices always are AC optional.
Great disable/ control tip. !!
In mine the AC compressor would shut off once I switched to the first 3 options. I'm beginning to realize that not all cars are programmed the same. This might be related to different markets/countries? I'm in east-coast Canada.
That's how I thought mine was, USA car, but I rarely use floor only, so I may have been confused. I did not think about it until I saw your video, so I started pre-testing all sorts of combinations so I would be familiar with what changed after doing your procedure. Then I noticed going from the defrost or split defrost to floor only it still ran AC compressor. So I looked in my owners manual and sure enough it said that's how it's supposed to function.
BTW, how did you learn of this trick?
This came out of a Honda service manual.
Cool, thanks !
I went and looked some more at my stock configuration. Turns out if you have recirculate selected, choosing any of the the 3 on the right automatically deselects re-circulation. After changing to your tip, it only does that on defrost or mix/defrost. Also to expand on my earlier response, in the stock configuration I mentioned if you selected floor only from defrost or mix/defrost, the A/C stays on. However, if you then push the A/C button twice (from unillumitated condition) , it will turn it off. This might be the first time I've actually read an owners manual, lol
This video will save the environment much more than all the green ideas of the government put together, imagine how many cars are now going to consume less gasoline and more miles. I had a 2011 Honda and believe me that with the AC on it consumes a lot more gasoline. I was always doing those calculations, which is a shame that I saw the video very late because the one I have is now 10th generation, but very good, everyone who has this model should apply this to their cars.
I never knew about this passive procedure,I will have to experiment with this.
Worked on my 9th Gen Civic EX (2012)
Thanks!
It eventually worked in my 2009 civic, but it did some strange things first. first try, the recirculating light blinked, not the Ac light. When that finished, the AC would ONLY turn on in each of the two defrost modes, not the others. when i tried to return it to "factory mode,' the AC didn't work at all. finally when i tried it a third time, it worked just as it does in your video.
Works for my 2008 EX-L sedan, Thank a lot
Thanks for posting this. Always hated this "feature."
can't wait to do this tomorrow. thanks for the handy tip!
This also worked on my 2006 Accord with the 2.4 L4
Awesome! Thanks for the feedback
It worked for my 2012 Civic as well.
I'm gonna try it on my 2007 Honda Civic si
+Ray Chu , your settings are preventing me from replying to your comment. It sounds like you have other problems with your car. The AC controls have no relation to the radio or the car starting. You might have to talk to a mechanic on that one.
thank you
Thank youuuuuuu
Lol anytime
thanks!!!
Thank you u just help me ❤❤
Awesome! You're welcome
It is possible I may have did something wrong but basically what mine was doing okay on the face the face and the feet and the feet I could turn the AC on and off but then when I would turn on defrost it would the AC would be running whether the AC light was on or off
Thanks
How do I turn off the defroster completely I want it off . Every time i use the car the light stays on . I don't want it on.
After doing the procedure in the video you can turn it off. You cannot disable it permanently.
Works for 2012-13 also
Awesome! Thanks
Спасибо большое 🤝
I had an older car didn’t have AC it defrosted fine. My Hondas AC broke and now nothing defrosts. Any reason why?
Damper door might not be moving. Is air coming out elsewhere?
@@Anthony_The_Disney_Guy air comes out ok but it’s just not defrosting
Nice
How can I turn off the “one arrow pointing at face” it’s always on when I turn on the car?
Not sure, that shouldn't happen.
Found answere ?
I need advice on my 2009 Civic LX coupe
I changed the stereo to an aftermarket double din. Used the cables from stock to aftermarket.
my AC compressor has been running, with out the AC being on. It has decreased my mpg significantly. And I'm not sure what can be the cause. I've already switched the sensor/switch in the hood, and I've checked the wiring.
If anyone's run into this problem, some friendly advice would help, thank you.
does it shut off if you turn the fan off?
can u tell me how to do this in honda accors 2007 navi gps screen model.
I believe the same procedure can be done on the accord as well. Let us know if it works!
Are the AC climate controls the same for civic 8th gen LX four door and coupe?
Yes they are
dp19 thanks bro, had to know before I ordered.
My airbag is turned off do you know how can i turn on?
+Vele Lamja Sorry I can't help you on that one.
+Vele Lamja you need to apply pressure to the seat. your talking about the passenger seat right?
+oneblood100 when i turn key on i see airbags off on the board i meen left from volume button so i dont know how to turn on, i dont know but i think both airbags are turned off,
The passenger airbag is only turned on when someone is sitting in the passenger seat.
But why Ac on itself with that at first is it important for that please explain All then negative effects
The ac cycle will draw out humidity. That's about it. None of my other cars do this. Just run the ac compressor once a month to keep it in good shape. The rest is a pro.
It's to dry the air blowing on the windshield. Cleans condensation of far quicker and comfortably than just hot air.
Thanks 🙏, do know to do it in camery?
No I don't, sorry.
did not work on my 2007
It should work on the 2007 civic if it's done in the right sequence.
My ac is not coming on at all but when I hit a pothole or something it come on I try to put the ac stuff in my car and it still won't work HELPP
Misty Moore I had the same problem. it was the ac clutch.
So I have to get that
Try the AC relay as it is only about$15.00 fix.
Es una mardita basura ahora mi carro deja de enfriar por momento por el mardito modo descongelacion
Cojelo suave bro 😂
My civic is 10years old now. Done only 44000 km. After watching these videos recently I am aware of these codes and functions.😮
So many secrets lol
An interesting video. Kudos to the original poster. There are some misconceptions in the comments section though. Every car will automatically turn on the A/C when the dial is set for Defrost or Defog (Defrost + floor). But it will only do this when ambient temperatures are 40°F (4°C) or warmer. This has nothing to do with the dash settings or the vehicle. This is simply the temperature/pressure point that R-134a shuts off at in order to prevent freezing up the evaporator. 40°F works out to about 25 psi, which is when the "low pressure cycle switch" offs the compressor. This is why in the summer time, your A/C will run constantly for a few minutes (starts around 100 psi and slowly goes down to 25 psi. It cycles off, the pressure rises to around 45 psi, it cycles back on. If you live in a HOT climate like Arizona, it may never cycle off no matter how long you drive, simply because it never gets down to 25 psi.....Now if you're getting into a car that has say 10 degrees below freezing ambient temp, it's already below the low pressure cycle switch point. The refrigerant is hovering at maybe 15 psi. That's below 25 psi (40°F/4°C) thus no A/C turns on. Doesn't matter if you set it for MAX A/C on the coldest setting or Defrost with the hottest setting. Nothing will happen. This is fine though. Because air is very dry when the temps are below freezing. Even though the windshield may be frozen solid. There is no moisture in this. Hence dry skin, chapped lips, dry hands, etc.
A/C is not required for Defrost to dehumidify the windshield. But it sure does speed up the process! My Sunbird was ordered without A/C. It just had VENT---HEAT---DEFROST as your options. No off position. No recirculate option. No fresh option (all 3 positions were fresh). No defog position either. Running Defrost and hot would eventually clear the windshield. But it was doing it simply with heat instead of heat and dehumidifying (as cars with A/C will do when turned to Defrost).
Not running the A/C compressor during the wintertime won't cause it to seize. There are countless "summer" cars that aren't driven during winter months. Stored away in garages for fall/winter/spring. The air conditioning works in the summer time just fine on these cars. Same thing with window A/C units on homes. Nobody runs them in the wintertime. But they still work fine in the summertime. The best way to make a compressor seize is to run them low on refrigerant, so that they cycle way too often. It's the initial "on" that's hard on the compressor. Once it's running, it's fine. This is why central A/C house thermostats often have a "wait" mode that will only turn the A/C on once in 3 minutes or so. So if you're fiddling around with the thermostat dial, you won't make the compressor go on/off/on/off/on/off in 10 seconds of fiddling with the dial. If I turn my home A/C off and then immediately turn it down again, it will say "waiting." 3 minutes later it will turn on.
Some vehicles have gone from cycling A/C compressors (100% on or off) to variable displacement compressors. Variable displacement vary the power in order to maintain and hold the A/C at 28 psi. So they'll run 100% when trying to cool the car down and then as it gets closer to 28 psi, the capacity of the compressor is lessened. No hard cycle on/off this way. These are more efficient.
Why do all manufacturers have it so that Defrost = A/C on? Because they all figure that Defrost is only used for clearing the windshield and then we'll go back to vent or heater mode for comfort.
As for fuel economy differences. It really depends on the vehicle. A heavy duty pickup truck that can tow 10,000 lbs isn't going to see much if any difference on gas mileage. Because turning the A/C on is like throwing 1 bag of sand in the back of the bed. Now something like a 3 cylinder Geo Metro with it's 70 HP, turning on the A/C is going to make a HUGE difference in power and feeling of being dragged down. Throwing a bag of sand in the back of a Geo will feel like dragging an anchor. I drove across the USA one time in a V8 Trans Am (Washington State to Texas). 100% highway miles. Using the A/C during that summertime trip vs just using vent on that trip made something like 0.8 mpg difference. Negligible at best.
Oh one more thing, most R-134a cars cycle off at 22 psi. Not 25 psi. The older R-12 cars cycled at 25 psi. Regardless, the point I was making above is that going below 20 psi with either of these refrigerants would result in the evaporator freezing up in the dash, wasted fuel economy, and a few other problems as well.
Wow, thanks for writing all that! Very interesting info.
MonoblocII,
Excellent explanation.
Some of the comments on this video are truly clueless. What really makes me shake my head is the crazies who get angry at the automobile industry for implementing this type of engineering; as if it's some kind of exploit or 'conspiracy' for crazy reasons baked up in their crazy minds.......
MonoblocII, regarding the Trans Am trip, I wouldn't worry about fuel economy in that type of car utilizing an IC drivetrain. The losses in converting the energy in the gasoline to kinetic 'work' is incredibly inefficient. In the order of 80% loss of energy and by extension, an 80% waste of the money spent on the fuel.
Awesome. It was not making sense why my si was getting such bad mpg during the winter. Did not know this was going on in the background. Cannot wait to see how it will impact my mpg. Thanks for the info 👍
Pure genius! Thanks, now I don’t have the fan cycle on every 20 seconds at a red light!!!!
It will take A LOT longer to defrost your windscreen though.
@Jad A
A lot of people just think that it just keeps their car cold.
if you are defrosting then simply leave the AC on. But this gives you the option to turn the AC off. With the stock setting the AC is forced on. This is much better as it gives you flexibility
COOL man, thank!!!!!!!!! I wonder what OTHER hacks there are in all these cars that the dealer doesn't give a flying FUCK to tell us about.
For my car, the recirculating light is blinking instead of AC 😅
i just unplug the ac compressor wire also works ( : but this will save the electric fan motors from turning also on woo
Dude, you made me leave my couch to go test it! Perfect!
Winter are harsh in Canada, and the ice cold A/C running when i just want to melt the ice on my windshield is somewhat counterproductive lol...
Thanks!!
you can run AC with temp dial all the way up (hot) - it does not have to be cold air
I always wondered why my gas mileage decreased from 350-370 miles per tank to 280-300 miles per tank. Hope this improves my gas mileage as well. Thanks!
DID IT HELP?
This so work for my Honda Accord 2008. You are such a Genius. My Car technicians have already stated I change the board. More of this hacks please.
Awesome!
thank you so much!!!
I was so annoyed by this feature. I guess the driver does not have to know that in order to defog the windshield he should use AC- Honda will do it for you :)
It is like the ATM machines don't require the knowledge how to use the decimal point anymore - when you put 4 it is 4 cents not dollars and so on
Omg it worked, thank you so much!! I hated that the A/C would kick on automatically whenever I used defrost.
Awesome! Happy holidays!
Its suppose to kick in with front defrost thats how its able to clear the fog on humid days.
Did this soo long ago, must have with the underpowered R18(with a/c on)
Excellent find man! Was wondering why my compressor was kicking on in the middle of winter with the defrost at max heat. Tested it, and works. No more compressor. Thanks!
Cool! Thanks, sir. I also like to be the captain of my civic and do not appreciate the car using the ac system without MY EXPRESS PERMISSION hahaha
Tyler Hamlin exactly !!! Lately I’m like why tf is my ac on and it doesn’t show lol
Tested on 2014 Civic SI.WORKS!!!
need help my a/c compressor never shuts off a/c works for 30 min than all the lines freeze so no airflow how do i shut the a/c off
Sounds like a stuck AC compressor clutch. Probably best to bring it to a shop for that.
Thank You. Do you have other civic “hacks”??
A few but they're more basic than this one. You can check my other videos.
Your asking for potential AC problems my friend !! This AC is coming on for a reason and engineers designed this way for..1) Humidity purposes as you mentioned in the video....2) The AC compressor must constantly be cycled SO IT WON'T SEIZE !!! If the AC compessor did NOT cycle all winter, your compressor could / will seize up !! Do what you want BUT your playing around with possible A/C problems in the future that can cost lots of $$$$$ !!! Ask your local Honda dealer how much a new AC compressor is installed ?? Good Luck !!@
Lew Scagnetti, seems to be an area ripe for improvement perhaps?
Nice video. I tried it in my 03 civic and it worked! That feature always bothered me. Thanks for the info.
Awesome! You're welcome
Gotta know, how did you figure this out!?
Ben Witek I wondered the same thing. Denis, please tell us how you knew about this!
Great! This is amazing. I've been wanting to know this and somehow it was in my recommended box.
awesome!
Thanks for posting. This video is correct, the key difference being what mode is selected when doing the procedure.
Can confirm this does work for 2002 CRV.
Stay gold.
Thanks!
When I did it the way you talked about in the ladder part I reverted it back then I was able for the last two modes just to hit the AC button and it'll turn it off so that seems to work for the 2010 maybe there's a difference with the years or maybe I did it wrong but that's what I found it works best I reverted it back and I hit the AC button and I can turn it off with the defrost on
Great tip. Thanks. I am going to use this tonight. I usually have the defrost on, but never realized that it would turn AC on without showing the light. Thanks man.
Okay I found actually by turning that on because I did do that on my car I did have an issue I reverted it back and now I'm able to turn on defroster in feet and defroster and then I just turned the air conditioner off and it blows regular hair with the AC off
tremendo,me resulto en el carro,honda civic.espero que sigas poniendo video de esa manera;saludos pepito.muchas gracias.
The AC must be running to defrost to work properly. Horrible idea.
If your windows are always frozen 100% of the time, then yes I agree.
Yes it can be reversed, I explain how to do it in the video. Interestingly enough I bought a 2012 Honda Accord and it comes like this from the factory where it allows you to shut off the AC when in defrost mode if you want to.
Also, the AC still turns on when you hit the defrost button, the modification only allows you to switch it off again where as before it was always on.
Exactly! Thank you much for this video. Extremely useful.
actually your heater will still work and de frost the windows. the AC just dries the air which allows it to work better for de fogging windows. if you live in a cold dry climate, like me, you don't need to run the AC all the time. you just need to de frost your windows. foggy windows aren't much of an issue. you also don't have to waste the gas or power to run the AC.
This is an excellent hack! Thank you so much for posting this.
It worked on my 2010 LX Coupe - but - my Recirc (Orange light with Car symbol) was the light that flashed - not the green A/C light. Weird. But it worked.
I really like this option because like the poster of the video, I don't like air blowing in my face and use the defrost a lot. I never realized the A/C was kicking on too.
A note to the people who do use this. You need to run your A/C compressor once in a while during the winter. Not running your A/C compressor for 6 months is not good for it. Auto A/C systems contain many rubber components and seals. When the A/C is running, the lubricants in the system keep the seals from drying out. In the cold, dry air of winter, and with the A/C system sitting idle, the rubber can crack and allow refrigerant to escape. Meaning that first warm day next spring, your A/C won't blow cold air.
aquaman0167 Great! Thanks for watching!
I don’t know if this works, but when I had my 2006 Honda Civic, I just left it on the dash air and to fully turn it off I just turned on air circulation and it it shut all air off until I turned it on. Also turned air circulation of so I can have a breeze go through as I’m driving on the highway. Don’t know if this effects much but I had an EX-L model.(sun roof with all leather interior) hope this helps most of you. I live in California and it gets cold so I need to defrost a lot. Lol
Worked on my 2011 accord. Preciate it man 🥲
didnt blink my ac light , it blinked the re circ light instead but the result was the same. Having the option to shut it down is great, esp since my ac compressor clutch is wearing.
Others have also reported different blink patterns, as long as it works I suppose.
my ac compressor squeals and this is a great option if you don't have the time to fix it.
i tried it on my 8th gen civic. instead of AC light, the Recirculation light blinks. hmmm why?
I didn't know the AC was on for the defrost modes but it makes sense. Cool (excuse the pun) video.
why did my recirculation button flash instead of the AC button
not sure, does the AC modification work?
yeah and no problem i figured it out in 8th gen civic forum, that sometimes its supposed to happen like that and it worked for me so thanks
Same here recirculation light flashed and then AC light went solid....The opposite of in the video..
How did you figure this out? Like is there a source? I recently took my 2008 to get the AC checked (found out the compressor is dead) but the fans pushing air through my Radiator are running on max power now, I feel like it's related to an option similar to what you showed us.
It's in the service manual
@@denispoirier19 How did you come across this solution. It worked on my Civic, but do you know how to make it work on a 2013 Mazda 6?
@@SS-wm1wy I don't have the info about mazda, sorry.
At the 4:00 minute mark, why is there a giant eyeball floating near the tune dial
lol! I can see you.
chingadera hanging from the rear view mirror
Greg Horowitz, optical illusion; light streaming from the trees or bush from behind?
My car made a funny noise when I turned it off what’s the reason behind that ?
OMG! Thx, i really doesnt know about that.
Thanks for the video I learn something new today..
Just did it on my 2010 civic and it work. Thanks
What happens when summer rolls around and now you have no air conditioning. Will disconnecting the battery and resetting the radio code work?
The AC still works when you press the button.
I want to say first that this is going to happen in my 07 Honda civic first thing tomorrow when I wake up regardless. But I am curious as to just how much power this actually adds and/or how much my fuel economy will actually be effected. Anybody figure that part out yet ?
Also, is this permanent or will I have to do the process every time I turn my car off then back on when I go to drive again ?
+Robert Oden To me it's more the annoyance of having the AC turn on and off each time I change the vent position, and the power is definitely noticeable in city driving especially with a manual transmission. It's permanent until you change it back.
Thanks for the tip. Always trying to save gas in California, we get screwed on gas prices here!
Awesome!
Awesome. I hope this works on my 2006 crv. Maybe my 2016 civic as well. ??? Thanks
Let us know please.
Worked on Civic! Anyone know a way to do this on 4th gen Odyssey?
Thanks so much for this. I was called for car leaking in winter while warning up on defrost. Because, the AC light was off the driver nor me 1st impression wasn't to check if AC is running. Eventually figured, set this so when AC is on you can tell it's on. Thanks a bunch..👍🏿👍🏿
Awesome!
Thanks - Worked on 2012 Civic EX
Thanks for the video, Do you mean even in winter when the fan in heat (red) mode still A/C works?
The AC running has nothing to do with the heat setting (it still runs when the heat is on). In the winter however it shuts off when it's colder than around -5C outside (below freezing).
fucking honda is so stupid for having that. it made me spend $1500 on my AC only. because i was using the defogger but my non working ac at the time was working my compressor that had no freon.
keep Freon in the system then? sound crazy?
muath sunaidi, I don't actually require AC where I live so I removed the whole system.
The compressor won't turn on if it detects low freon
Is the defrost suppose to b in all the time? I can't switch it off. It's always on
It should turn off when you select a different vent position.
Did not work on my 2007 CRV but did work on my friend's Civic, also a 07. Please let me know what am I doing wrong. Thanks
Very good tip thanks for the video :)
Worked on 2006 Honda CIVIC LX 1.8L The Reticulating light blinked instead of A/C but works GREAT!
Can't wait to try this.
My problem is i cant turn off the ac or the defrost :(
Don’t do this, there’s a reason the factory wants the compressor to keep running. If you do this the compressor wont start for a long time and when you go to turn it on in the summer. It has a high chance of not turning on since it hasn’t been on in such a long tiem
That's not true. It still starts whenever you put the air on defrost. This is well explained in the video.
@@denispoirier19 but you're advising them to keep it off....
@@WaterDrop74 Also incorrect. Please watch the video.
@@WaterDrop74 only when u are using the defrost he said it’s good to turn it off
Before posting this you was supposed to watch his video couple times ! 🤦🏻♀️🙄
Or, you can just turn the hot/cold dial on the right to the top position and the AC will shut off. Magic!
No it won't.
+Scott Brandenburg LOL, this compressor cutting in and out was driving me insane. After trying this 6 times, it worked! The only small annoyance is, as you stated, every time you change a setting on top, you have to shut off the AC switch. Great hack, thanks!
+Scott Brandenburg Awesome!
Thank you!
but with the AC off , it take too much time to remove the steam on the windshield
just leave it on if you have steamy windows. It doesn't disable it, it only allows you to turn it off if you want to.
@dp19, hey man is that an Acura CSX?
In fact, AC removes humidity, its the reason because of removes the steam, it's not a good idea...
Again, watch the video.