Honda Odyssey : One Cooling Fan Works On High / Both Work On Low?

[@don7406]

Thanks for going over the diagrams. I’m just a “do it yourself” driveway mechanic with no training. Your video helps me to learn more about my autos. I appreciate you spending the time to show us amateurs how the pros do it.

[@kruyf73]

As a dutch guy, it warms my heart to see you have stroopwafels.

[@citichap]

How about just change out the relay for the right side fan. Could be that the spring inside the relay is weak causing a large spike or the contact might be pitted, thus blowing the 30 amp fuse. Happy Fathers day Eric, your family seems very nice. You are a lucky man to have such a wonderful life with them. Lots of LOVE there. I am always looking forward in viewing your next video.

[@paulmonk7820]

As it appears in this situation, replacing or swapping the relay alone would have no effect since the fuse was blown. Replacing the fuse confirmed that the relay was ok. I do agree that testing the relay in the working circuit would be a good step if you had not checked voltage to the different parts of the circuit, but when you found that it worked, you still have to check the voltage.

[@KeithHiebert]

This video helped me understand the overheating problem with my daughters 2007 Odyssey, same issue as this van. No one could figure it out! One fan only on high speed. Broken ground wire! That's 2 vehicle you've helped me with, Thanks again!

[@BigDaddy_MRI]

First time I had a Stroop Waffle was in Eindhoven, The Netherlands. I got hooked on them right off the bat. Dude, your kids are growing up so fast!! Beautiful family!! Thanks for the great video!! Another video demonstrating logical thinking and following a process for troubleshooting. I was kinda surprised the new fuse didn’t blow when you went to high speed, but like you said, it could have been blown since the wreck. Who knows? Thanks again!!

[@southmcwow]

Thanks for this, Eric. I'm a new Honda tech and very green when it comes to electrical diag. I struggle to read wiring diagrams and seeing the breakdown is great. I imagine this may become handy in the future.

[@andylucas8262]

I originally came to this channel to gain knowledge, which I did. I stayed for the entertainment, which keeps you engaged. You definitely have a knack for teaching.

[@JLamond219]

Great to see the family are all doing good.. thank you for sharing Mr. O

[@AP9311]

Eric, I have to say, that was super excellent tutorial! When you explained how the fan works and the diagram explain in powers and grounds etc. I followed it perfectly! Now I got my money's worth on Patreon!! I'm so glad I pay monthly in last two years I've been paying. I find it I get good value of your videos and education!! Thanks Dr O!!

[@MarkPdot]

On my old truck I still have the clutch fan. So when the clutch went out, I replaced it and added an electric fan on a switch. Now no matter what my AC will keep you nice and cool even in rush hour traffic in Phoenix, AZ.

[@rickbanks7681]

Very helpful. I am converting a two fan system to that same series/parallel scheme and I would have overlooked an important feature in the fuse layout. When maximum cooling is requested, separate fuses permit one fan to "do its best" even if its partner is dead. It is back to the drawing board for me but I will sleep easier knowing I have at least one HS fan when the system is calling for two HS fans. Many thanks for the extra time you put into the diagrams. The view of the fuse placement "sealed the deal" for me.

[@lopez8871]

Smart guy i see you are Friend. Great Stuff you got going there.keep it up.

[@GeorgeJFW]

I seriously love watching the process unfolding, it's funny you work through a problem one at a time at work and never see the process layed out.

[@SouthMainAuto]

Plan the work and then work the plan ;-)

[@jbrhel]

I'm a short time subscriber and missed this one. You sir are OUTSTANDIG1

[@EATSLEEPFARM]

Before watching this video I wasn’t very comfortable reading a wiring diagram but watching you explain how the fans worked really put it all together and can see how easy it really is!!

[@joshuakellerman3738]

I really enjoy watching the ele.diag videos you do. All the videos are fantastic just do a great job explaining and showing. Wish I had a mentor like you when I was coming up. The school of hard knocks sucked.

[@ferrie76]

HI Eric, Stroopwafels are not from England but from the Netherlands so coffee will do! Greetings from the Netherlands 🤪

[@WCSPete1]

It did throw me for a while and I've eaten just about every/all, old traditional UK food going.

[@bostedtap8399]

They are lovely, place on top of your cup of hot beverage for a several seconds to soften.

[@WCSPete1]

@@bostedtap8399 great advice. Googled and found I can get them from my local store. Incredible!

[@bostedtap8399]

@@WCSPete1 I get mine from Lidl. Enjoy.

[@reecenewton3097]

They are often served on transAtlantic flights. Also available in some local stores and coffee shops now in the USA!

[@SuperDave21]

I hate electrical problems.... don't have the equipment to deal with them like you. Glad you've got it though! lol... You Da Man...!

[@harveysmith100]

Nice and simple for the back of the class. Slowly teaching myself electronics. It is starting to click

[@zakuraayame5091]

your relay is coming online ... click click

[@tomctutor]

Follow the current path(s) like Eric O and you'll be $ in 99% of the time; the other 1% you gonna have to use some theory, so go learn.

[@johnaclark1]

Sign up for ScannerDanner Premium....best thing I ever did.

[@marionmitchell261]

Eric, you really are the quintessential teacher and mentor!! I mean that sincerely. I find myself asking what would Eric do, or how would he handle- insert description of debacle being faced at the moment. It would be interesting if you would offer your opinion to buying a scan tool, for the home or advanced home mechanic. Something that could read live data, do things like read transmission temps, etc., etc.. I have seen offerings ranging from $70.00 to well over $1K. Again thank you for your time and attention with explaining the what, how, why, and then the fix. The folks around your neck of the woods are EXTREMELY fortunate to have you in their midst. Thank you, Marion.

[@xanderlander8989]

Your explanation of the wiring diagram was great. I think a lot of people are intimated by electrical work because they don't have a solid understanding of electricity and how to read diagrams. As an engineer I've had a lot of practice but I still enjoyed seeing you work out the logic here

[@buffsheeri]

wow....where do you even start on a problem like that....it works.....but not?.. .You totally rock in your job Eric.

[@Really2u]

It takes a big man to know when to say when. Because after that point you are chasing the ghost of the problem. By showing us this video you taught a huge lesson. Seeing what the manufacturers wanted it to do. Despite what it is doing. Unfortunately that leaves us with a 3 relay system working. Yet not finding the path to fixing it. I do hope the solution comes to you to get it done. Still this was a great lesson. Super impressed by this video. Yes if you can do it I can. I try.

[@paulmonk7820]

You watched the whole video? He found the problem and fixed it.

[@Really2u]

@@paulmonk7820 I will try watching again. I made it till it timed out. I will watch again. Because I did want to see the fix.

[@Really2u]

@@paulmonk7820 time 23:32 on video. He doesn't fix it. I looked in the description for more. Found nothing. Thank you

[@JohnRodriguesPhotographer]

This is a great video Eric. Once when I had a fuel pump issue on an 83 town car, I threw a fuel pump in and the circus began. I was ever so thankful I had less than a 1/4 of a tank of gas. After taking the tank down countless time, I went to the wiring diagram. (where I should have started) Found the pump relays. They looked good no pits. and no power! Unplugged the harness, and found the grease had dried out and wasn't making a circuit. cleaned all the connectors applied new grease and problem solved! This was about 5 hours later!

[@fridaynighthikes]

Read the title, diagnose it in my head, never fails, got to watch the whole video.

[@nigelstringfellow5187]

What better way to wake up on a cold Sunday morning than to sit down with a hot chocolate and a informative entertaining SMA video, thanks Mr O ,hope you are enjoying your weekend ,cheers from downunder..

[@bendercs]

I'm not a mechanic and I only do the minor, easy stuff on my vehicles - but most of your videos are ASMR for dorks. Highly enjoyed! :D

[@williegillie5712]

You may not have found what is causing the fuse to blow. Sometimes it can be really hard to find the cause of a fuse blowing, especially if it’s an intermittent problem. Since changing a blown fuse seemed to fix the problem you did what I would have done. If it continues to blow fuses it’ll be time to track that problem down. Something tells me your gonna be finding the green shmoo somewhere in the circuit or a bad fan or relay or ground. Great job of tracing down the circuit 👍 Eric. It sucks that the owner sorta made it sound like the same problem came back. I think you did a pretty thorough job. Your troubleshooting videos are my favs. Thanks again

[@commonsense2469]

Excellent instruction on the fan wiring and how it works! You missed your calling as a teacher.

[@HUBBABUBBADOOPYDOOP]

Man! Those two are growing! Great job, Mom & Dad.

[@ehsnils]

It could have been something that appeared during winter time too - snow stuck in the fan during a snowstorm and then later it was stuck when the high speed was commanded and blew the fuse.

[@SouthMainAuto]

Sure could have!

[@johnaclark1]

I had this exact same thing happen on my 08 Odyssey Touring but I live in Charlotte...It just happened out of the blue one day. I found exactly what Eric did and no explanation. Replaced the fuse....that was 3 years and 60K miles ago. No issues since.

[@brianburns7211]

The thought crossed my mind too. Sometimes I try to see if I can reason through the problem and see if I’m right, and Eric comes up with the same idea.

[@throttlebottle5906]

or a relay is breaking internally and shorted to ground on a bump or switch over.. **the middle relay on the diagram could cause that if the contact/spring arm was to twist sideways, it would short out and blow the fuse for "left" fan when left and middle relay turned on for high both high speed. never overlook a relay being bad, best to just replace them, also it could be bent inside or shorted when wrecked, assuming that's what occurred :)

[@hammer-fn7gm]

Got my SMA tee shirt yesterday. I'll be passing through on Rt 15 next Friday. I'll blow the horn and wave.

[@tiredagain6722]

Hey, it's that guy!

[@PragmaticPragmatic]

Beat me to it.

[@johnreid859]

I have that same problem. A lot of black boxes on the shelf. I began labeling the end of the boxes so I don't have to pull them down and look in to see what I got. Thanks for the video.

[@CubasAutomotive]

That's what I do... label them, paint marker or sharpie, depending on box colors.

[@fascistpedant758]

The problem with the blow molded cases they make now is that they're mostly empty. They used to cram everything in to a small metal box that took about 1/5 of the space.

[@timothybarney7257]

Ironically, the biggest blow molded case I have contains, of all things, a Brady BMP-71 Label printer...and no, other than the sticker on the flat top, it's not labelled.

[@donaldswink6259]

Your children are getting big Mr.O, nice to see everyone is healthy.

[@hammerhead6537]

100% agree with Hearo Zearo's comment. Using the wiring schematic during the troubleshooting process is priceless Eric O. Thanks!

[@fascistpedant758]

It's good that you're introducing the concept of a path to ground. It's a better way to clearly demonstrate a complete circuit than simply stating that you need a power and a ground. I think it helps people learning about electrical circuits.

[@paulmonk7820]

Yes, theory is a prerequisite for proper and successful diagnostic procedures.

[@rtfm13]

Made my heart skip a beat @20:25, I thought you got your hand caught in the fan!

[@mr.nobody4900]

Test, Don't guess...You are one hell of troubleshooter. Eric O. Two Thumbs Up

[@SteveB647]

Great explanation of using 3 relays to switch from series to parallel cooling fan function. And...Stroopwaffels!

[@parteibonza]

Good work. Them AC problems are so hard to figure out. I've never seen someone successfully fix them when I get them. Last time i took my car in for this problem, they just replaced the condensor switch, which worked for like 2 weeks then it stopped cooling again. I've owned German cars since then and no more A/C issues!

[@hokiefyd]

Eric, this is a great video, probably one of your best in terms of solid, teachable, educational material. Thumbs up!

[@WCSPete1]

No, it's one of many..!

[@rattmann36863]

You have to be an electronics tech, mechanic, and plumber on today's vehicles.

[@Garth2011]

You have said it correctly, "It's a guessing game" for all late model vehicles. It really would be something to observe how a Honda factory engineer could diagnose problems using their own DTC's etc. That would be the icing on the cake of guessing game at it's best from the maker (not to be confused with dealerships).

[@davesage9190]

I think Eric's idea of an accident trashing the front end and something jamming the fan and taking out the fuse is probably accurate. Who knows. A very comprehensive (typical) diag from Eric. That's why I love this channel.

[@catsspat]

Agreed. And whoever did the crash repair replaced the fan(s) and saw them both running in slow mode and called it a day.

[@garyashdown5376]

Always been a big FAN of yours .. get it fan, the jokes get worse with time

[@moldingpro7208]

You are an excellent teacher.

[@SouthMainAuto]

Thanks

[@JeffWinter1]

And that's why you charge a diagnostic fee. Lots of time chasing wires = time. Time = $$$ which pays for new equipment and repairing equipment. Thanks for the info, good video. 🚘

[@teacfan1080]

I don't really understand wiring diagrams but your in-depth showing how current flows through relays & fuses and how the fans are controlled made it a whole lot easier to understand. I found myself while watching thinking.."well it's got to be this relay"...etc. By the way, vaniller is a great flavor!

[@rhkips]

It's not age making us blind, it's experience telling us to take a closer look. ;D People say fuses never blow for no reason, but I beg to differ. Especially on older vehicles where age and entropy have taken their tolls on circuits, adding small resistances at every junction, combined with momentary inrush currents when things turn on, it's perfectly reasonable that under the right conditions, a fuse can get fatigued enough to fail under "normal" operating conditions.

[@joshr8176]

I would gander to say the fuse blew in the accident, they replaced the parts but didn't have money to repair the A/C system, once the A/C system was repaired (leak fixed) the other issues caused by the accident showed their face. Many people repair none critical systems as money allows which leads to discovery of other issues they may have over looked. We see many salvage rebuilt cars that the customer repairs on their own overlooking issues.

[@throttlebottle5906]

chants RELAY RELAY RELAY

[@ablackformula]

When you first mentioned the fans spin ok by hand, then they worked when you started the engine, I thought for sure you were gonna be exploring a bad motor brush. Great video!

[@travisduncan2701]

Eric O. Please make more videos where you walk us through a schematic in layman’s terms like this. Can’t tell you how much I appreciate learning from you.

[@guyburleson8918]

If you had time, you would make a great teacher! Not many people have the knowledge and great personality to go with it like you do! Great vid Eric O.....looking forward to the next vid!!!! Just dont get burned out!!!

[@retiredchief7469]

Thank you. You have a simple breakdown of the fan system that makes it easier to understand. I am trying to troubleshoot a 2004 Buick Rendezvous cooling fan issue but don’t have the diagnostic tools to help me turn the fans on off. Wish we had an Eric O in our neighborhood.

[@549BR]

That Italian tuneup in Italy is known as an American tuneup.

[@tb2187]

Shouldn’t it be and Eye-talian?

[@fasteddy4929]

Great walk thru on troubleshooting electrical systems.first you have to know how the system works then start checking the easiest to get at test points. Then on to the harder ones.

[@JackdeDuCoeur]

It's always illuminating to watch your process. Nice work.

[@dpomeroy1]

Grant me the patience in my own problem determination as displayed by Eric on while working on fixing other peoples problems. Not all Mechanics are equal as proven by this video & many others Eric has posted. Keep up the good work!

[@1013redoak]

You are an electrical system Master! Most mechanics don't have a clue, even at the Dealerships!

[@weldingjunkie]

Michael Wilder lack of training not thier fault but you are right

[@PragmaticPragmatic]

So true. IMO most mechanics get into repairs because they are logical and can learn from sight. They figure out how to repair anything they can understand how it works by looking at it. Its a great skill but electrical repairs are hard to visualize. You can't always look at wires and determine how a system works. Most mechanics would pick it up with enough training or better yet enough hands on experience with wiring diagrams.

[@weldingjunkie]

Pragmatic Pragmatic I wish that more companies would make it Mandatory and pay for training so they can have better techs. This would result in more repairs and in the end repair more vehicles which would increase bottom line. Up front costs for increase revenue

[@keithhastings4092]

P.J.’s Auto Parts -> NOT a sponsor...

[@grahamefreestone5309]

Lol. That was my exact thought too. 👍 🇬🇧

[@pl5882]

Keith Hastings Dammit you beat me to it 🚀

[@billmaxfield7831]

lol

[@goodheadward]

Great job. You got a new tire machine. When is the new lift video coming?

[@PragmaticPragmatic]

+1

[@SmittySmithsonite]

Probably not gonna happen, Eddie. The world today is too litigious. Given the popularity of Eric's channel, I don't think he'd want to risk someone following what he did with his lift in a video, then try to take his livelihood because they did something stupid and dropped a car off the thing - that can go bad so many different ways. Sad we live in a world like that today, but that's the reality.

[@duanedonaldson2262]

Typically when the 2 fans shut off and they both take the same amount of time to stop rotating and the suspect fan does not stop too much quicker than the good fan, there is no problem with bearings, dragging internal parts, etc. As you mentioned, due to the accident the fuse may have blown in the past, the body shop fixed the broken wire but did not know how to test a 2-speed fan system so they did not know the fuse was actually blown. That is my story and I am sticking to it. Thanks for the great video and diagnostics for 2-speed cooling fans. (Hiding in there somewhere is a bare wire waiting to short out hehehehe) Would like to have seen you manually bypass certain relays to operate each fan independent based on your different speeds on your wire diagrams just to prove out the theory but that is extra free work for your viewers hehe.

[@Paul1958R]

Eric, Great video and diagnosis. Perfect explanation of how the circuit works - or doesnt! SMA#1 God bless Paul

[@SmittySmithsonite]

That's some neat engineering with the relays there. I remember when I was at MMI, they had these boards that you could play with, and install relays in all kinds of different configurations to make certain lights turn on, and others turn off, and some half bright - same concept here. I've forgotten half of what I've learned there over the past 2 decades. 😒 Don't get old! 😂 Sounds like you got the same gremlin infestation I had at the beginning of the year! They got my compressor, the differential in the Silverado, my 30 year old TV, and one of my cats (vet bills totaling 4-figures, all for worms 😖 ). Luckily a swift whack to the TV knocked the stupid out of it, and it's been working great! No parts needed, no dollars spent. 👍 A few other things broke, but I must've blocked all that out. 🤣 Been a non-stop money-hemorrhage-fest over here ... Those Starbucks Frappuccinos used to be my favorite. Drank those for years, until the company did something stupid (politically) and I stopped buying them. That happened with my favorite ice cream many years ago, too. Wish I could build a time machine, and go back to a normal time where companies just made products, and actors just acted, and musicians just made music, and everyone kept their ideologies to themselves. Ahh but I digress! There I go dreaming again ... 😞 Got 3 vids shot, and zero time to edit. I need to borrow some of your energy, brother - I don't know how you do it! Anyway, keep on keepin' on ... and I'll keep tryin' ... 😁

[@Techman4567]

Hey Eric excellent troubleshooting demonstration! I worked for many years in the electronics field and it always amazes me to see automotive circuits with such hi current ratings.

[@BigEightiesNewWave]

A stroopwafel is a wafer made from two thin layers of baked dough with a caramel syrup filling in the middle. Stroopwafels are popular in the Netherlands, and were first made in the Dutch city of Gouda. Nowadays the waffles are eaten worldwide

[@jeremyhundley3142]

Can't wait to see the lift install video! 😉 But honestly- maybe you could make a short shop maintenance video for us young folks? It's always great to learn MeMa's tricks on lift maintenance

[@sabergermd]

Taking the time to go over the wiring diagrams was very helpful. Thanks.

[@daquanbrown7886]

Your diagnostic and voltage drop videos are my favorite but love all your videos;)

[@15743_Hertz]

1. Current draw is average 2. Fan turn on spikes are minimal My answer: The blown fuse got fatigued through normal fan turn on and turn off cycles. Under normal conditions, each time the power to the fan is turned on, the _fuse wire expands and contracts_ causing wear to the fuse wire. Since the fans have high turn on/off cycles, if the fuse isn't manufactured properly, it'll blow eventually. It's like bending a piece of metal back and forth until it breaks.

[@johnaclark1]

That's an interesting theory. I mentioned in the comments already that I had this exact same failure on my 08 Odyssey at 149K. Found the same amp draw on the fan as Eric did. Replaced the fuse and that was 3 years and 60K miles ago with no further issues. I did notice that Honda changed from a standard 30A mini fuse in the gen 3 (2005-2010) to that larger style J Case fuse in the gen 4 (2011-2017.) I wonder if they thought that would alleviate this very problem.

[@15743_Hertz]

@@johnaclark1 Unless the fan has a few shorted windings which don't affect the overall performance but would cause a slightly larger spike with a tad more current draw. Regardless of that, the fuse is being stressed by the circuit turning on and off several times per minute. To me, this would indicate that it would fail due to stress faster than say, a fuse in a circuit that's turned on for the duration of the vehicle's trip.

[@dans_Learning_Curve]

Like your thought process! Suggestion on setting up your amp testing. Use two test leads and clip the fuse in the middle. Circuit is protected, so are your test leads.

[@montestu5502]

Professor O! Great walk through on the electrical diagram. I figured the relay was bad since it was working on low speed and the other 30A powers both at low speed. Doesn’t make sense for the other fuse to blow on the one fan. I bet you are right that it was blown at some other time, like when the other fan was replaced.

[@mjfollrd]

Most excellent video and from now on I’ll make sure both fans operate in high and low speed mode after servicing A/C Thanks

[@MrRabiddragon]

Another great video Eric. When the papers were sliding off, I wonder how many were like me hollering "Eric, grab the papers!". I have had papers go into fans before, great thing to make ya jump. *LOL*

[@roadkill5333]

Great production, DOC!! The best part was when ABSOLUTE BEAUTY WALKED INTO THE SHOP!!! And Mrs O and Trinity!! BRUH, NICE HAIR!! Lololol

[@trossnt]

Love how you explained the circuitry

[@rgmoore]

Good to see the Fam-Jam. Kids as cute as ever and growing like weeds. Solid diagnostics on the van. I like your theory on prior damage being the culprit. Given the damage and the prior AC issues its likely the problem existed but there was no means for the driver to see symptoms of it.

[@fascistpedant758]

We routinely check for proper fan operation when doing any cooling system work whatsoever. Maybe we should do the same when doing A/C work also.

[@adventureoflinkmk2]

Eh.. sounds good. The condenser needs to be cooled one way or the other (if not the fans, ram air by going 30mph or more)

[@olspanner]

Not everyone can do it as well as you my friend. Great diagnostic skills Eric.

[@halleffect1]

following your excellent diagram presentation I couldn't help but get devious when you said the one high speed leg is powered but it comes to a dead end.. so you could feed that into the horn relay. When the high speed fan circuit energizes, like when sitting in traffic with cars in front of you, the horn starts blowing :D :D

[@oldhvacguy8427]

Hang on there! Italian tune-up? Since I'm Italian I do believe I'm offended!! LOL Now we all know when YOU do that it's a Polish tune-up!! Love all your Vids Dr. O informative and funny too. Always better when the family is included. God Bless.

[@CopCat34]

Great video. The diagnostic approach you do is awesome. Wish I had your test equipment. Thanks for the class.

[@cadjs]

Great diagnosis! I love stroopwaffels btw, my brother brings them to us from Holland and they are delicious with coffee.

[@chuckgrenci6404]

I don't think that I could have logic it out, however I could follow your explanation, so there lies the entertainment (for me), and in time or at least in similar situations, I could execute similar strategies that would help me on other electrical dilemmas. Thanks for your insight; you surely could be an excellent teacher (if you ever decided to explore that venue).

[@russgibson7376]

This was very good. Nice example of following the logic!

[@iandamianluciferwilson7385]

Thanks Eric. Another great insight into the voodoo that you do so well

[@robertheinkel6225]

My 2012 always seems to weak on the AC at idle. No issues on the road. Both fans do run, but time to look at some fuses.

[@Levi-k6p]

Ok, so I'l have been having overheating issues with my emgine since i got it, used about a month ago. Done radiator flushing, and engine service. Still ssme thing but slightly better. However i noticed the radiator fan is directly connected, no thermostat active, and the friggin thing blows air from the engine bay into the radiator. As a trained engineer, my instincts have been telling me it should be th other way around_ it should suck air from the radiator! This video just confirmed my thoughts!

[@wirenutt57]

I'm an industrial electrician and your troubleshooting techniques are virtually identical to mine, except I'm working with everything from 24vdc to 480vac 3-phase, frequently a mixture of 24vdc, 120vac and 480vac. And the computers that run everything are called PLCs, (programmable logic controllers). I use much of the same kind of equipment also, except I can actually SEE the logic in the controller and, for instance, find the conditions required for the fans to run fast or slow, essentially WHY the outputs are getting turned on. And I can easily change the logic if necessary. Very cool to watch you step through the wiring and clearly explain it to the laymen. As to why the fuse blew, I'm curious what the current draw would be if you locked the fan rotor. It could have happened in the winter if her engine compartment was packed with snow, and now that we're getting warmer weather, she notices something is wrong. Just a thought, because I'm close to Syracuse and we get snow off Lake Ontario, whereas you get it from Lake Erie just as bad.

[@batman1169]

I drive a 2009 Honda Oddy with same issues. (10 Years old!) Traffic Sucks, When I get cruising its blows cold. Drivers side warm passengers side cool. Changed the fuse as well. No change. Hope you fix it and let everyone know how this was done!

[@2secondslater]

Awesome vid, Eric! Simple and clear to understand the circuit and it's operation.

[@bkuznick]

As always, the Best Diagnostics this side of the Mississippi...and beyond! No 'Triagnostics' here...like many of you other YT techs

[@elcheapo5302]

That was a really good explanation of the cooling fan operation, Eric. Thanks!

[@mikefedele4521]

I would bet that the body shop mist it Amp draw is good not much more to say. New tire machine and lift....it is what it is. I replaced one of my lifts a few years ago. My tire machine is as old as the hills leaks air but still working. I think you did a great job laying out current path. Great video.

[@Garth2011]

My guess is, customer never noticed it until warm weather time. Likely the fuse was blown months ago.

[@levithompson4619]

Thanks for the thorough video Eric o another great one I appreciate all the hard work you put into getting quality videos out 👍

[@akemibalding6225]

I have a 2014 Honda Odyssey. Both fans are not working!!! Haven’t checked fuse yet😳 just pray 🙏 for me! Thanks for your video 😇

[@doyleredwine1683]

another exceptional video and explanation. Many thanks South Main Auto

[@jkbrown5496]

This prompted me to finally use the disciplined approach to go through wiring diagram for the cooling fan relays for a 2007 Miata. Three relays, single fan. Turns out one fixed ground, one relay switching to ground, two relays to power. Must be two windings in the motor. One power/fixed ground for low. One power/two grounds for med. Two powers/two grounds for high. Now I just have to figure out how to reach the fan connector. You can barely get a visual on the fan.

[@theoldman6]

Very knowledgeable love watching you fix things that help's me when i have fix my own stuff

[@davemc3650]

Nice, just diagnosed 07 odyssey for ac not working to find relay failed. It work but won’t put out 12 v. Dealer told them compressor and all for 2000.00 job

[@arthurfricchione8119]

Eric O great video. Learned a lot. Thanks for walking us through the wiring schematic and explaining how the system works and showing us the amp measurement. seeing as how I have an odyssey this was extremely good info to store in the old noggin. Now if I don't lose the noggin I'll know what to look for. I bought the launch for around 400$ +. seems well equipped for use on Hondas. Thanks again for your time and knowledge. ❤️️