BLESS YOU FOR THIS VIDEO! Lol my ac or fans get no power i followed this video and now my ac is working. Headlights are not a problem. Just the ac constantly runs this way so i installed a switch.
That's a pretty clean engine bay for a then 18 year old car. Pretty unique issue you have here. Previously, my issue was the connector from the ac compressor to the wiring around the front grill would get loose. Eventually I just wire tapped them together without the connector. I just had my compressor clutch wear out, which got me suggested this video. I just removed the clutch shim, and it appears to be working now, but it hasn't been hot enough to really test it. I also had to replace the low side line cuz it got cracked after 20 years. Hopefully I never have this problem cuz I had opening stuff like that center console.
I did the same process and it was working fine and now the air compressor doesn't work and the riley goes tik tik tik but I put a direct cable to the riley and the compressor works I don't know what I did wrong
First of all, i wana thank mr Tom Sornpanya for this video which pointed me in the right direction, my 2001 civic had all the symptoms that he describes throughout this video and instead of jumping the ground cable from the ac button to the pressure switch, i went to a local wrecking yard and scored a fuse box from a 2005 honda civic with the same options as mine, this is the fuse box thats located under the dash to the right of the steering column, I swapped it out and everything started working. Ac, power locks, key chime, wipers intermittent, brake light on cluster was always on and it went off with the “new” fuse box. Now im not saying that this could be everyone’s culprit for their ac not working, but if you’re also experiencing the other symptoms it could all be related to that fuse box. Very grateful for this video, i hope my comment and experience helps others with the same issues i was having. Good luck y’all. 👍🏽👍🏽👍🏽
2001 Honda Civic LX Couple - I have the exact issues you described. Intermittent wiper not working, ac compressor not engaging even though dash light comes on, no more door chime, power locks stopped working, cluster brake light is on, fan only runs when engine is hot. Anybody have a part number or affordable source (not stealer ship) for the fuse box in case I cannot find one at the junk yard?
@@BITEBOC the symptoms on my car were, power locks not working, intermittent wipers not working, ac clutch not engaging even though the ac llight would turn on, parking brake light “On” on dashboard would never turn off even when fully released,all the fuses were ok so that makes it harder to diagnose the issue, after watching this video i went to the local junkyard and found a 2005 civic with the same options as mine, paid $25 for the complete fuse panel thats located on the right side of the steering column , swapped it in less than 15 minutes and everything started working they way it should be. Its kinda tricky to swap it out especially if you’re kinda big so i pulled the driver seat out to make extra room to lay on the floor. Good luck
@@BITEBOC one thing I forgot to mention, if you do go find one at your local junkyard, if your car is a coupe make sure the one you get its from a coupe as well.
boss i have the same problem i did that and it work but did you fixed by now cus a change the ecm key and immobilize still have the issue just in case you fixed let me know thanks
Thank you i have an 05 civic and am having same issue. Changing the high pressure switch did you have to drian system? Another guy on video said to check the evaporator plug under by radio cause it also goes bad did you have changed it? Every thing was working then it just stopped. So am satringbto check it I grounded the compressor and clutch clicked on so am guessing a ground issue
I tried this out it worked fine for about a couple days and then it stopped working. I rechecked the wire and soldered the wire this time and still not working. Any advice what causes it to stop working? What if I add a wire from the ground of the battery to the wire?
I did everything you said and now the compressor engages but the blower motor still doesn’t work. Changed blower motor and resistor and still doesn’t work. Any recommendations?
I have a 2002 Honda Civic ex as well and my ac turns on and blows cold but sometimes it will go from blowing from the dash to blowing below where my feet are on its own any tips?
@@spicythai2000 Wait a minute Tom. Are you saying.. that if the headlights are on the AC compressor is not turning on because of that? Do these have daytime running lights? I'm gonna definitely have to check it and see I'd this works.
@@Mike_Muffler I had the same issue when using the A/C button to provide a ground to turn on the compressor. It has to do with the green light on the A/C button dimming when you turn on the headlights, whatever method is used to dim that green light interrupts the ground slightly, which causes the compressor to stop running. The fans will continue to run, but at a very slow speed.. It's a trip. I found another wire that gets a solid ground with the a/c button engaged. I got totally side tracked and ended up moving.. the last year has been crazy for me, but I'm going to make a video in the next couple days to show how I did it in hopes it'll help some people stay cool this summer. Thanks to @Tom Sornpanya for the idea to get this going.
Hey same car but my ac light is not coming all the fuse is good, but no ground signal coming from the ac button when you press it. And I am getting two ground signal when I plug off the connector behind the ac button and one live signal (positive signal),but when I put positive current to the single wire that connects to the ac compressor the ac works how do I fix that .Note no light in display when I touch the ac button
Good morning ..A problem with the two yellow 20 fuses are good but no current underneath .How can I do to solve this problem...Thank you so much..Hope to have an answer with you Sir..Watching from France..
I found an alternate wire that gives you a perfect ground when the A/C button is pressed and the headlights do not affect it. I've been using it for about 2 weeks and it works great. I took the whole unit out and checked every wire with my power probe until I found the right one. I didn't note which wire it was because I honestly thought nobody would read my comment. But I can check it and let you know, or if you just probe all the wires from the HVAC unit you will find the one that gives a perfect ground from the AC button.
@@spicythai2000 Thanks Tom I am Installing a new AC on 04 Honda Civic Coupe. The condenser and compressor use one relay. You mentioned the condenser and compressor relay by touch-one relay. I guess the relay after radiator relay is the condenser relay and the one after condenser relay is the compressor
Okay I have questions my car 08 honda civic si dashboard on my car have A/c n A/C MAX.. but on that had many wire I don't know which one I chose, can you tell what colors do I connected the ac button
@@spicythai2000 one more my question what if Compressive on but the A/C not cold, A/C fan not on, the relay Compressive working to, can you tell what it wrong.
@@SuperTx2011 when the compressor is on the fan will come on unless you have a blow fuse for the fan or the fans are bad. Not enough freon in the system, the ac will not blow cold. Most car take 2 cans of 12oz freon. If the compressor clutch is bad even if the compressor come on you still won't get cold air. You need Hi and Lo side ac guages to check the pressure. Goodluck.
@@spicythai2000 Hey when I get home from work tonight, I'll check mine and let you which wire worked perfectly. It was just as easy, just tap into it and the ground is not changed by the headlights. The original wire must have a resister built into it or something in order to dim the light with the headlights, so that interrupts the ground and causes the AC and fan relays to constantly click but not fully energize.
Thank you so much I’ve been chasing this for over a year I can finally sleep at night
BLESS YOU FOR THIS VIDEO! Lol my ac or fans get no power i followed this video and now my ac is working. Headlights are not a problem. Just the ac constantly runs this way so i installed a switch.
Thank you so for the tip! My a/c wasn’t working so did what you taught me. So thank you so much!
Thank you sir, I’ve been trying to figure out this problem for 4 years now
This is the exact problem I have , thank you!!
That's a pretty clean engine bay for a then 18 year old car. Pretty unique issue you have here. Previously, my issue was the connector from the ac compressor to the wiring around the front grill would get loose. Eventually I just wire tapped them together without the connector. I just had my compressor clutch wear out, which got me suggested this video. I just removed the clutch shim, and it appears to be working now, but it hasn't been hot enough to really test it. I also had to replace the low side line cuz it got cracked after 20 years. Hopefully I never have this problem cuz I had opening stuff like that center console.
I follow the instructions and my ac is blasting ice 🧊 cold air. Thank you very much!
Glad u could help. For some reason it does not work when the headlights are turn on.
I did the same process and it was working fine and now the air compressor doesn't work and the riley goes tik tik tik but I put a direct cable to the riley and the compressor works I don't know what I did wrong
Thank you!!! The same problem with mine
Thank you good video
When I turn the headlights on it stop working. Just letting you know.
First of all, i wana thank mr Tom Sornpanya for this video which pointed me in the right direction, my 2001 civic had all the symptoms that he describes throughout this video and instead of jumping the ground cable from the ac button to the pressure switch, i went to a local wrecking yard and scored a fuse box from a 2005 honda civic with the same options as mine, this is the fuse box thats located under the dash to the right of the steering column, I swapped it out and everything started working. Ac, power locks, key chime, wipers intermittent, brake light on cluster was always on and it went off with the “new” fuse box. Now im not saying that this could be everyone’s culprit for their ac not working, but if you’re also experiencing the other symptoms it could all be related to that fuse box. Very grateful for this video, i hope my comment and experience helps others with the same issues i was having. Good luck y’all. 👍🏽👍🏽👍🏽
Glad it work out for you.
2001 Honda Civic LX Couple - I have the exact issues you described. Intermittent wiper not working, ac compressor not engaging even though dash light comes on, no more door chime, power locks stopped working, cluster brake light is on, fan only runs when engine is hot. Anybody have a part number or affordable source (not stealer ship) for the fuse box in case I cannot find one at the junk yard?
@@BITEBOC the symptoms on my car were, power locks not working, intermittent wipers not working, ac clutch not engaging even though the ac llight would turn on, parking brake light “On” on dashboard would never turn off even when fully released,all the fuses were ok so that makes it harder to diagnose the issue, after watching this video i went to the local junkyard and found a 2005 civic with the same options as mine, paid $25 for the complete fuse panel thats located on the right side of the steering column , swapped it in less than 15 minutes and everything started working they way it should be. Its kinda tricky to swap it out especially if you’re kinda big so i pulled the driver seat out to make extra room to lay on the floor. Good luck
@@BITEBOC one thing I forgot to mention, if you do go find one at your local junkyard, if your car is a coupe make sure the one you get its from a coupe as well.
@@vsixxshooter Thank you sir.
wow, i was going to replace my comp. this actually worked
Clean engine nice
It's the heater control unit. The unit with the 3 knobs is the culprit.
Do you have the part number for this?
@@thechuckster40 Honda 79500-S5D-A01 that is the heater control unit. Not a cheap part. Best bet is to go to the junkyard.
How do you know it is?
How you do if the compressor has only on wire and the fuse harness connector has 3 wire?
Any updates on this. This is gold right here!
I believe the ECU control the AC compressor. Something inside the ECU maybe burn.
boss i have the same problem i did that and it work but did you fixed by now cus a change the ecm key and immobilize still have the issue just in case you fixed let me know thanks
Does anyone know what that Blue wire is that is coming out of the firewall on the engine side that Tom ran his white wire through?
Will that Work on a 98 civic as well?
Thank you i have an 05 civic and am having same issue. Changing the high pressure switch did you have to drian system?
Another guy on video said to check the evaporator plug under by radio cause it also goes bad did you have changed it? Every thing was working then it just stopped. So am satringbto check it I grounded the compressor and clutch clicked on so am guessing a ground issue
Yes you have to recover the freon .
Your clutch on the compressor was not engaging because your thermo protection switch is bad.
Is that the reason the fan doesn’t turn on after you press the a/c button??
I tried this out it worked fine for about a couple days and then it stopped working. I rechecked the wire and soldered the wire this time and still not working. Any advice what causes it to stop working? What if I add a wire from the ground of the battery to the wire?
Couldn't hurt to try. Honda are bad with their ac unit.
Hello thanks mine works doing this but the headlighs with turn the fan off anyway it will help during daytime when is really hot
I'm not sure why it does that.
@@spicythai2000 anyway it will help during day time. Thank you.
I did everything you said and now the compressor engages but the blower motor still doesn’t work. Changed blower motor and resistor and still doesn’t work. Any recommendations?
Check for voltage to blower motor and for any blown fuse.
I have a 2002 Honda Civic ex as well and my ac turns on and blows cold but sometimes it will go from blowing from the dash to blowing below where my feet are on its own any tips?
I believe it's your control switch that go from different settings. It maybe bad.
Tom Sornpanya thanks ima check it out
So is the ac still chip in and out even tho u ran the wire straight?
NO it come on when I turn it on. But when the headlight is turned on the ac compressor won't come on.
Have you noticed a ground wire jumping from the engine to the front bracket (bonded to the center front by the radiator)?
No. It doesn't work when the headlights are turn on.
@@spicythai2000 Wait a minute Tom. Are you saying.. that if the headlights are on the AC compressor is not turning on because of that? Do these have daytime running lights? I'm gonna definitely have to check it and see I'd this works.
No daytime running lights.
@@spicythai2000 Oh your particular Honda's ac compressor doesn't work with the headlights on. Hmm.
@@Mike_Muffler I had the same issue when using the A/C button to provide a ground to turn on the compressor. It has to do with the green light on the A/C button dimming when you turn on the headlights, whatever method is used to dim that green light interrupts the ground slightly, which causes the compressor to stop running. The fans will continue to run, but at a very slow speed.. It's a trip. I found another wire that gets a solid ground with the a/c button engaged. I got totally side tracked and ended up moving.. the last year has been crazy for me, but I'm going to make a video in the next couple days to show how I did it in hopes it'll help some people stay cool this summer. Thanks to @Tom Sornpanya for the idea to get this going.
Hey same car but my ac light is not coming all the fuse is good, but no ground signal coming from the ac button when you press it.
And I am getting two ground signal when I plug off the connector behind the ac button and one live signal (positive signal),but when I put positive current to the single wire that connects to the ac compressor the ac works how do I fix that .Note no light in display when I touch the ac button
Can't remember been awhile. Sorry.
Good morning ..A problem with the two yellow 20 fuses are good but no current underneath .How can I do to solve this problem...Thank you so much..Hope to have an answer with you Sir..Watching from France..
Not sure what fuse you're talking about or what you mean no current underneath?
Where does the ac switch negative wire gone after thermostat
Been so long I can't remember. Sorry.
That definitely gets the fans and AC compressor going! But did you test it with the headlights on yet? :)
Mi situacion fue pawer door lock a/c compresor no traja solo remplace la fuse box del drive side
I have that same issue when the lights turned on on high beam it cuts on eventually it shuts back off
Venegas Victor y por eso no te funcionaba el /c
Didn't work when the headlights came on.
I found an alternate wire that gives you a perfect ground when the A/C button is pressed and the headlights do not affect it. I've been using it for about 2 weeks and it works great. I took the whole unit out and checked every wire with my power probe until I found the right one. I didn't note which wire it was because I honestly thought nobody would read my comment. But I can check it and let you know, or if you just probe all the wires from the HVAC unit you will find the one that gives a perfect ground from the AC button.
Tom I have 2004 Honda Civic Hove no AC what will be the cost to install AC.
It depends on what you need. If you find a good shop it could cost around $500 and up.
@@spicythai2000 Thanks Tom I am Installing a new AC on 04 Honda Civic Coupe. The condenser and compressor use one relay. You mentioned the condenser and compressor relay by touch-one relay. I guess the relay after radiator relay is the condenser relay and the one after condenser relay is the compressor
@brownuwa3128 the ac compressor, vacuum and recharge, parts and labor could cost over $500. You could Google it.
Okay what if have 3 wires which one do I use black,green and red.
Black is usually the ground. Try it.
Okay I have questions my car 08 honda civic si dashboard on my car have A/c n A/C MAX.. but on that had many wire I don't know which one I chose, can you tell what colors do I connected the ac button
@@SuperTx2011 sorry without wire schematic I can't say.
@@spicythai2000 one more my question what if Compressive on but the A/C not cold, A/C fan not on, the relay Compressive working to, can you tell what it wrong.
@@SuperTx2011 when the compressor is on the fan will come on unless you have a blow fuse for the fan or the fans are bad. Not enough freon in the system, the ac will not blow cold. Most car take 2 cans of 12oz freon. If the compressor clutch is bad even if the compressor come on you still won't get cold air. You need Hi and Lo side ac guages to check the pressure. Goodluck.
Hi guys! Did anyone find which is the best ground to tap in? Thanks
I need help too🥺
The AC not cutting
Is it still working
Once you turn the headlights on, the a c stop working. So something else is wrong.
@@spicythai2000 Hey when I get home from work tonight, I'll check mine and let you which wire worked perfectly. It was just as easy, just tap into it and the ground is not changed by the headlights. The original wire must have a resister built into it or something in order to dim the light with the headlights, so that interrupts the ground and causes the AC and fan relays to constantly click but not fully energize.
My friend ac blowing hot air
Shit cu. Fix my car i got da same pro yo haha
Tom, mine squeaks only when ac is on ? Normal fan doesn’t make noise, only ac mode