Honda Accord Blower Motor Troubleshooting and Replacement 2012 (2008-2012 Similar)

[@BigDog50001]

Tools and parts in video: This channel earns a small commission using some of these links - at no additional cost to you. PowerProbe IV: amzn.to/2YO5vcz OTC Test Light: amzn.to/2Z51jnL Uni-T Clamp Meter: amzn.to/2yYIMLl Genuine Honda Blower Motor: amzn.to/2Z4mAdl Genuine Honda Blower Transistor: amzn.to/2yXcGj4 Genuine Honda Passenger Cover: amzn.to/2YZ7Pg3 The Big Dog 50001 Automotive Channel Store can be found here: www.amazon.com/shop/bigdog50001automotive

[@eugeneroushe7240]

I have an 07 Honda Civic everything looks similar wiring wise, I’ve tryed two different blower motors two different resistors, I’m getting 14 volts to the blower motor if I spin it by hand it will cut on for a second weak but then eventually cuts off I tryed to jump the green and black to bypass the resistor but it still didn’t cut on any idea what else it could be?

[@BigDog50001]

@@eugeneroushe7240 I would use a test light in place of blower motor and see if it lights brightly. I would look towards a power or ground issue from what you describe. A volt meter might show 14V but that doesn't mean it can carrying the current necessary to run a blower motor.

[@eugeneroushe7240]

Big Dog50001 Automotive I see what your saying! I appreciate it, in case the light doesn’t cut on I’m looking at a wiring issue. Thanks again

[@eugeneroushe7240]

Big Dog50001 Automotive quick question though when you say it having 14v doesn’t mean it’s getting enough power? I’m confused a little bit on this one. So basically using a test light shows it’s consistently got power running through?

[@BigDog50001]

@@eugeneroushe7240 It might show 14V, but without a load in place there is no current flowing through the wiring (voltage drops across resistance). When you place a load on the wiring (either a test light or the blower motor) that is when you will see if there is a problem with the wiring being able to carry the current (a voltage drop/resistance). A test light on the two wires going to blower motor is how I would test the circuit (one end of test light on + wire and one end of the test light on - wire). This is using a test light in place of the component. I believe I demonstrated using a test light on the wiring in place of blower in the bonus footage.

[@64pontgto]

At first i thought 43 min just to find out where my resistor was .But then i watched the whole video . One of the most thorough and informative videos i have ever watched.

[@BigDog50001]

Thank you, I really appreciate the comment!

[@texasdeeslinglead2401]

I agree , u thought someone was fixing to go down a pointless rabbit hole. I like being suprised every now and again.

[@HomeOrchard]

This is the best diagnostic repair video I have seen on this subject. My 2013 Honda CR-V had those same symptoms during a recent trip. I didn't have any means of testing the resistor so I opened the engine fuse box and pushed down all of the relays to make sure that they were seated. (I had no key either to determine the system each relay served.) Long story short, some of those relays did seat better, and my symptoms of low output of A/C air went back to normal. Now that I am home, I have found out that Honda has discontinued carrying the blower motor and resistor for my car but that's normal since car manufacturers are only required to carry parts for ten years. I plan to purchase a replacement blower motor, resistor, and resistor harness to have on hand as the availability of these parts is becoming sketchy.

[@increase9896]

I cant get over how damn good this video is. super well explained and you show everything step by step. thank you for being so thorough and showing how easy it is to do this stuff yourself.

[@BigDog50001]

I appreciate the comment, thank you!

[@devin30thirty]

Thank you for taking the time to make this troubleshooting tutorial on a problem that has driven thousands of Honda owners mad. Me included. You identified almost every aspect including the wiring diagram which was very easy to understand. The Honda HVAC control unit is also notorious for randomly going bad. I'm subscribed. Please keep up the outstanding work!

[@BigDog50001]

Robert Alvarado Thanks!

[@BlastReadingSeries]

I watch so many car repair videos on KZbin, this is without a doubt the most detailed and to-the-point video I've ever sen on troubleshooting an electrical problem. Thanks for this. (My parents have a really noisy air blower in a 09 Accord so I believe it only needs a replacement... but all of this is so useful!)

[@BigDog50001]

Thank you.

[@BlastReadingSeries]

You've also made it absolutely clear to me that I need to get a PowerProbe! :)

[@BigDog50001]

Be sure to subscribe for more tool and car repair videos! kzbin.info twitter.com/BigDog50001 instagram.com/bigdog50001/ Disclosure: This channel earns a small commission using some of these links - at no additional cost to you. The Big Dog 50001 Automotive Channel Store can be found here: www.amazon.com/shop/bigdog50001automotive

[@tc96z1]

Very nice. I have an 97 and replaced the blower module about 5 years ago. Just went on the blink and if that doesn’t work I can dig deeper after watching this breakdown. You are the Top Dog too.

[@Dieselhorses]

I usually have a short attention span but this video must have healed me LOL. Was having issues with my stepdaughters 2009 Civic. Had to push start the blower fan to get working. I was all ready to hit the "order" button at "Parts Geek" to buy another fan but watched this video first. Went thru ALL the steps (tested transistor, wire jump etc.) you explained in video and what do you know-the darn thing started working! I let car run for thirty minutes and no audible change in fan speed (didn't have voltage clamp) so we'll see what happens. All in all-THANK YOU!

[@BigDog50001]

lol, Thanks! Nice job going through the diagnosis steps!

[@roladun]

I searched forever to get this video that provides exactly what I need. Thank you so much, now I can troubleshoot on my Pilot HVAC system and eliminate the blower motor part of it.

[@BigDog50001]

Thank you, I appreciate the comment!

[@chocolatewon]

First 10 minutes and im really impressed, so thorough!

[@matthewfrancis6452]

Your explanation and video is great. I tested my resistor and it tested good. I tested the motor, and it was also good. However, the way we test the resistor is different than how it acts under full load, and running conditions. The resistor tested good, but I replaced it and everything is good.

[@scottschonfeld6889]

Excellent video Big Dog! I first heard the noise coming from under the glove compartment after starting the car on a very cold day. I called the dealer to make an appointment to bring the car in to have it diagnosed and repaired. The service advisor said it is probably a "Blower Motor" which costs around $283.00 to replace ($114 for the part and $169 which is an hour and half labor). So I made the appointment thinking the dashboard and other areas of the car would need to replace. Then I thought, "Let me check KZbin to see if there is anymore information" and low and behold I came across this video which could not have been any more informative! I looked online for the part and I found it for $66 with $12 for shipping from "CheaperHondaParts" and ordered the Torx screw driver on Amazon for $4. The whole job took me 13 minutes to complete and saved me $201.00! Thanks so much for producing this great video...keep up the good work!

[@BigDog50001]

Thank you.

[@roconnor7778]

I imagine Honda Dealerships hate BigDog! Haha

[@leahjaron558]

My 2015 Honda Civic started making a funny noise last night when I turned on the AC/heat. I found many videos on how to replace the air cabin filter, so I tried that, and it was really clean! But none of those videos told me to reach in under the filter to make sure there isn't anything in there and the motor moved freely!! And that was the problem! There was an old receipt (not mine) in it! Less than 4 minutes into your great detailed video, and it solved my problem. Thank you so much!!

[@BigDog50001]

Glad to hear you got it fixed!

[@tomgreene7942]

Perhaps try a new mechanic, not the one who changed your last cabin filter.

[@JulianneSherman]

Thank you so much for this video! I purchased a part with no wiring diagram, and nobody and I mean nobody would help me identify the proper wiring configuration. The part I was sold add all the same colored wires, without your diagram I was lost. Thank you

[@TommyHynes3]

Thank you for this video. Had a clicking noise and was able to clean out the filter and found the leaf making the noise. Saved me a trip to the mechanic and probably a few hundred dollars. Great video!

[@BigDog50001]

👍

[@wreckagevic]

Just bought this panel off Amazon for my ‘08 Accord and it does help with the noise.

[@geomod6850]

I was told to change both motor and resistor, but thank you for showing us the full and proper way to troubleshoot this issue.

[@BigDog50001]

I generally like to replace both as a general rule.

[@t12ung78]

Great video. Super detailed and step-by-step, easy to follow. Thank you for covering everything that will help everyone save bucks by knowing how to trouble-shooting their blower fan issues

[@pianoman5836]

Best training video on the web! Thank you. I'm struggling with the replacement of resistor and blower motor on an Acura MDX. Very poorly designed system. If you're not an instructor, you should be!

[@BigDog50001]

Pianoman Thanks!

[@JamesSmith-rg7eu]

Thanks, I was able to fix my heater and AC by following this video. The explanation was very clear.

[@BigDog50001]

Glad it helped, thanks for the comment!

[@Contradi]

Exceptional video. It helped me solve my problem for way cheaper than I was quoted for by a mechanic. I appreciate this video tremendously.

[@BigDog50001]

Glad it helped, thanks for the comment!

[@tramonson]

Thank you so much for this video. You are sure a swell teacher, as you answered every question that I had in my mind about the slow-flow blower problem that we were having in our Honda Civic, but the make is not important after seeing this video. So I dove right in with my DVM (digital volt meter) and current checker. I started right out with checking the heater blower filter behind the glove box. Lucky me, it was an easy fix as some dang mice had a nest in there, a total plug up. No tools fix for me, that's why I say lucky me. I didn't even know that filter was in there. Anyway, from here on out, our fix will be to turn on the recirculating button for airflow on the dash before we turn off the key. Bringing in fresh air is only for when the windows fog up, and gives the mice a nice tunnel to come on in. This closes the flapper from outside air, and those dang mice. I told Wifey to hit that yellow button with the circular arrow before she shuts the car down for the night. The circular arrow means the mice will be ejected out of the cab and into the exhaust pipe. Thanks again!

[@BigDog50001]

Thanks for the comment!

[@tomgreene7942]

I don't think your recycle trick will work if the mice are determined. The recirc on most vehicles still uses about 50 fresh air, just to be sure the cabin air is fresh.

[@xiradio]

Thanks for posting this. I was able to test my resistor/diode and once that was OK, I narrowed it down to the charcoal air filter just not letting enough air through.

[@BigDog50001]

Glad it helped, thank you for the comment!

[@luisamoa2500]

Holy crap the explanation was perfect. Diagnosis, confirm, repair. EXACTLY how it should be done. 😎😎

[@BigDog50001]

I appreciate the comment, thank you!

[@larrysanderson8362]

Your explanation is excellent. Great detail, full examples with the theory behind the tests! Thanks for your help

[@garyrussell5559]

Thank you for this post. Your description worked for a 2004 Honda Odyssey RB1 as well. Slightly different locations of the components but easily identifiable. It was the resistor pack on mine. I had just replaced the starter motor the day before when the problem occurred, so I'm not sure if related or just bad luck. I had to replace the battery while fault finding the blower as well as it was so weak it was showing low volts quickly after beginning testing. I was aware that the battery was on the way out but the Hondas are such good starters I had put up with it longer than I should have.

[@PhysicalMediaRules]

Record heat this week in Houston and my 2012 Fit fan goes out. Thanks a bunch for this video I will fixing it this weekend..

[@BigDog50001]

👍

[@victorgojocco1716]

Very good instructional video on how to test /troublshoot resistor / motor problems!!! Thank you

[@danielesteves3435]

Definitely subscribed!!! Your video is the most thorough and informative. You set the bar very high because I’ve never seen a video as good as yours. I can’t say thank you enough. Please keep up the good work.

[@BigDog50001]

I appreciate the comment, thanks!

[@ronhadge3454]

Excellent video, extremely helpful. Important to see the root cause, could be the resistor as well as the blower fan. Value cleaning the motor first to eliminate possible cause of noise. Well done!

[@BigDog50001]

Ron Hadge Thank you.

[@Austinjm7]

The video helped me a lot on my 2012 accord, the climate control would occasionally come on if I was in park and the rest of the time it wouldn’t work. It was the fuse and it was cheap and easy thanks to you

[@BigDog50001]

Glad it helped, thanks for the comment!

[@Austinjm7]

Big Dog50001 Automotive so it turns out the fuse keeps blowing for the climate control... know what could be the problem?

[@BigDog50001]

@@Austinjm7 The most common reasons fuses blow are: 1: The component (the climate control in this case) is pulling to much current or is internally shorting. That could indicate a bad climate control unit or something the climate control unit is connected to and controlling is bad and pulling too much amperage or shorting out (air mix or mode control motors, temp sensors, blower transistor etc). 2: The power wire to the component is touching ground (shorted) somewhere between fuse and component, either the wire rubbed through or a bad connector or something like that. To try and limit the amount of components to test, I would try to narrow it down and see if it blows when something is pressed/changed/turned on (like changing temps, blower speeds, A/C on or changing modes etc). I highly advise against putting a larger fuse in, that usually leads to melted components or worse.

[@Austinjm7]

Big Dog50001 Automotive luckily the used car dealer whom I bought it from is going to fix it all for free since I wasn’t aware of the problem when I bought it. I don’t want to spend money on more fuses if I don’t have to just to find out what sets it off. But thank you for all the help.

[@Austinjm7]

Especially when it costs 5$ for the 1 fuse since it comes in a pack and only has 1 I need

[@adnanma6098]

Thank you for this wonderful tutorial. It gives lot of information about my car

[@BigDog50001]

No problem 👍!

[@xr500t]

Great job explaining the troubleshooting procedure. Some people just want to throw parts at the issue and call it a day.......only to come back later and find another item to be the culprit.

[@BigDog50001]

Thanks for the comment!

[@richardlangley90]

Really appreciate this video...the detail is amazing. Taking the time to make the circuit diagram was over the top. This helped me check every aspect of my blower problem, which oddly enough suddenly began working again. I suspect it's the fan and will replace it and the 'resister' if the problem happens again. Thanks for going to all the trouble of creating this video.

[@BigDog50001]

Richard Langley Thank you I'm glad it helped you out. Many times messing around with a component will cause it to start working again.

[@fabianrossini1691]

Amazing video! So professional! thank you thank you so much. I was able to fix my odyssey 2007 blower.

[@babytrejo1971]

Thanks Bro you explain it so perfectly regular guy like my self got it done 👍 😅 thanks

[@BigDog50001]

👍

[@billyyoder8171]

Thank you Dave. Good job. If you get a chance, can you make a short 5 minute video on testing the power transistor control voltage with connector unplugged and plugged in. This will help us all know what to expect from a known good AC Control Unit. Have a blessed and safe week to you and your family.

[@BigDog50001]

I will see what I can do, thanks for the comment and the suggestion!

[@timothybernstetter3760]

This video was so helpful!! AAA!! Thank you so much, you saved me a lot of aggravation and an expensive repair bill. Keep the videos coming and I can't say thank you enough. I've watched many tutorials and this ones the "Best" !!! Any suggestions on where I could find the female plug/pigtail that attaches to the blower motor??

[@BigDog50001]

Timothy Bernstetter Thank you! I would try the local junk yard first.

[@RepairLegion]

This was a great video. Saved me tons of headaches. Thank you kind sir

[@BigDog50001]

I appreciate the comment, thanks!

[@jackyman29]

One of the best trouble shooting video, good work and thank you!

[@BigDog50001]

Thanks!

[@elevin1972]

God Bless you brother!! I was able to learn from this and apply it to my car (03 Civic) to deduce the ground side aka resistor/transistor being bad rather than the fan! I jumped the 2 fat wires with the fan on high and key on and the fan came on. thanks again!!! p.s. I will try to get an ammeter like yours to do a more thorough test on the motor too!

[@BigDog50001]

👍

[@j.s.4636]

Very GOOD video man! Very well documented and easily explained

[@BigDog50001]

I appreciate the comment, thanks!

[@memcmc1026]

Great info. I admire your professionalism

[@BigDog50001]

Thanks 👍!

[@parkavenuecars8876]

good job mate, your video just saved me the money on new Blower Motor.The diagram you have put on is very useful.

[@BigDog50001]

Glad it helped!

[@jlsarmienta12]

THANK YOU SIR! Best video out there. Thanks for all the pointers.

[@jamestalley3539]

thanks man this helped me so much that noise was driving my girl crazy!

[@BigDog50001]

👍

[@justinkremer7371]

By far, one of the best videos I have watched! You tha man.

[@BigDog50001]

I appreciate the comment, thanks!

[@medanovrashputin4641]

Thank you so much fantastic I have same problem in my car & I’ve watch too many videos but that one make the problem easy thanks again 👌👍🏻

[@BigDog50001]

Thanks for the comment!

[@rickbarbye3989]

Great video! Very thorough. Thanks for taking the time to create this!

[@BigDog50001]

Thanks 👍!

[@leecollins9957]

Great work, thanks for taking the time to go through in detail.

[@BigDog50001]

You bet , thanks for watching 👍!

[@bbjun8503]

I’ve the prblom with my honda accord 2008 2.4 a/c, switch on the a/c but all the fan, blower, compressor wont work..but all fuse n realy stil in good condition..plz let me know the problm

[@br00talhonesty]

Did u figure this out

[@alanw5879]

Thanks bud, I have this problem,. At first Iooking at the wiring diagram, it looked pwm on the ground side. Is that what's happening here? I was nervous about checking transistor while it was plugged in. I have an 8ma led test light for ecm circuits. But this design is new to me.

[@مقاطعمتنوعة-ت4ن]

really nice vehicle, the only downside is that it is noisy on the highway, do you have any experience with the dynapad or something like that?

[@rmanzanog1]

Thanks for this information. Diagram suggests that power transistor is controlled by a pulse width modulation signal in order to get control over motor speed.

[@BigDog50001]

Not a bad guess but actually Honda Power Transistors are controlled by current (micro amps) from the HVAC Control Unit. Thanks for the comment!

[@kennylake4996]

Great job of explaining the diagnosing Honda Blower Circuit. Thanks so much. I have a Honda Odyssey Elite 2020 which 2 Blowers one for the Front & one for the back. The front is blowing but rear vents has no air Blowing . Can you help. Thanks kFL

[@chocolatewon]

I think I have debris stuck in my motor, it's noisy and gets louder and higher speeds. Just changed the cabin filter which had leaves!! Can I vacuum the motor, put the extended piece inside?

[@richardabato9120]

Thank you so much. This was one of the most helpful videos I have found on KZbin. Great details!

[@BigDog50001]

Thank you!

[@tomgreene7942]

Thanks for this video! I'm looking for why the passenger side isn't getting heat, and this isn't that problem but it was interesting and helped me understand what isn't wrong, although I have noticed slightly less blowing too, so that may be a future fix.

[@BigDog50001]

Possible reasons why passenger side isn't getting heat: Passenger air mix motor issue, recirculation control motor issue, passenger climate control switch input issue (many times the systems will set trouble codes for these). Another smaller possibility is air in cooling system/heater core (coolant system needs to be bled properly). Thanks for the comment!

[@joshuaban5670]

Hi, I need help with it as I’m Honda Civic fan!! My blower doesn’t work as I did replaced the blower only. Could it be the wire issue as AC/Heater doesn’t work at all… should I buy Resistor?? Thanks!!

[@Normazing]

My whole HVAC system makes a whining noise at low levels, I can hear it coming from the blower motor when I put my ear near it. It's working fine but always has a whining noise. It's very loud at low levels and it's doing it all the time. Is there something else that could be bad? Or should I replace the blower motor and see if that fixes my issue. I have a 2008 Accord 4 door.

[@mechanix6191]

Awesome video! My blower motor has been working intermittently for a few weeks. I checked for power and ground where appropriate; all was good. I ran all the tests on the transistor; all was good. I did the voltage drop test with the transistor pin looped; my voltage started at 14v but then dropped to 13.1 and ultimately stayed around 13.1-13.2. Oddly enough my blower motor is currently working after tinkering with the connectors. Based on these tests it looks like I need both the motor and transistor.

[@BigDog50001]

Thanks 👍!

[@increase9896]

what if the blower motor works, the air is cool, all speeds work, and there is no debris in the filter, but it is just all of a sudden a lot louder than it used to be? does that mean that the blower motor is "going bad"? edit: this video was amazingly informative and relieves my anxiety about dealing with this area of my 2011 accord

[@BigDog50001]

Good chance the blower motor is going bad, the quality of the OEM ones for this generation was not very good.

[@vandiyplant921]

@@BigDog50001 if OEM quality is bad for this gen, why did you choose to put another OEM blower motor in for this video? Why not another brand?

[@ih94568]

The blue and white wire isn't getting any power.. any tips for this? I checked the fuses and jumped the relay and still no power

[@br00talhonesty]

Did u figure it out bro

[@ih94568]

@@br00talhonesty yea the main power ended up being melted.. I did smell burning plastic a couple days before it stopped working.

[@br00talhonesty]

@@ih94568 by main power u mean? I believe I have this problem. I smelled plastic burning too. Thanks for replying

[@bryang2724]

Help me figure mine out. 02 CRV. After putting new resistor in things got worse. Now most of the time the fan won't come on at all on any speed. Used volt meter to test things and they pass. Can I test current draw with just a regular volt meter? Is there a way to test the controls themselves? I can't find anything on it. Update: I went ahead and used my volt meter to check the power when the fan is running. I had to first tap the motor to get it to spin then checked the meter and the volts were jumping all over the place. I replaced motor and resistor now its smooth and quiet. I have to say your video helped me out more than any other due to more in depth testing that others didn't do.

[@BigDog50001]

Good to see your testing lead you in the right direction, glad the video helped out!

[@stryder2000]

Thanks for the video. It was great. Daughter has a 2003 Accord (V6). The issue was/is the fan blowing full blast no matter where the control is set. We replaced the transistor several times before finding this video. Sometimes it worked for a few days and then started going full blast again. Followed most of the steps on the video, but couldn’t figure it out. Finally broke down and replaced the transistor and the blower motor at the same time. And wa-la, it worked great...for one month! Then back to blowing full boar. She is ready to take it to the dealer. Any suggestions would be greatly appreciated.

[@BigDog50001]

Honda or aftermarket parts? Aftermarket transistors are known to do what you are describing. If it was in my shop, I would probably start by looking at the voltage on the control wire coming from climate control over to transistor (voltage should change when the blower speed is changed on dial), that voltage is what is telling transistor what speed the blower should be.

[@stryder2000]

Big Dog50001 Automotive Any suggestions on where to get OE parts? I think we will just replace both the blower and resistor with OE parts. Should we just get them from the Honda dealer?

[@Lstwhknight]

Excellent presentation very knowledgeable and professional

[@BigDog50001]

Thanks 👍!

[@humblemaniac2683]

I have the same car ac working but no air coming out behind center console for backseat passengers. Do you know what could be the problem?

[@billyyoder8171]

Thank you Sir. Good job. Appreciate your videos. Was hoping you would show the control voltage at various speed settings to see if the control voltage stays the same or varied when the speed was increased or if the frequency or duty cycle changes. Would like to know what the control voltage reads at the transistor connector while unplugged and see if the control voltage changes and compare the control voltage by back probe the control wire with connector plugged into the transistor. Also would like to see what the feedback voltage did as the motor got more ground from low to high speed. As more ground was provided by transistor the ground voltage level will go down. Slower the speed, less the ground, higher the feedback voltage. Faster the speed, more the ground, lower the feedback voltage. Thank you very much. I really appreciate and enjoy your videos. God Bless you and your family.

[@BigDog50001]

The video was already long and I wanted to keep it a bit more simplified. Thanks for the comment!

[@jerryfrias2645]

thanks for your time on the video brother helped very well

[@BigDog50001]

Glad it helped, thanks for the comment!

[@TheArczer1234]

thank you for this video , have question my blower is noisy only in low setings on higher works ok that look like transitor gone ?

[@BigDog50001]

Sounds like it is probably more likely just a bad blower motor.

[@TheArczer1234]

@@BigDog50001 i took blower out, and power up, and not a noise come from, when fitted is still noisy, i clean everything inside, put new filter and all, still noise, I order blower all ready and resistor, thank you for replying

[@ROBERTZAJKOWSKI-u3b]

I replaced my blower motor with one from Amazon that fits my 2014 honda. it worked for 1 day then it stopped blowing after that. I checked the fuse box which was good and I checked the power coming from the cord in the glove box it was still giving 12 volts but my fan still was not working??

[@MIKEYSREVIEWS]

I wonder if it will also display a B1241 Blower motor Lock Error on the scanner.

[@BigDog50001]

Typically no, older Honda HVAC control units do not communicate very well with the ECM or scan tools.

[@Tubecraft1]

Very very good vid thanks so much great to see the power probe actually in use not just someone talking about it. One question though - how do I test the signals from the climate control to the transistor? Is it pwm

[@BigDog50001]

The control wire (purple) just uses voltage to control the transistor, you can see the voltages with a simple DVOM. Key on, turn on climate control/blower control and you should be able to see voltage changes. Thanks for the comment!

[@Tubecraft1]

Big Dog50001 Automotive that’s great thanks. I got some waveforms off it today with my pico. If they’re any interest to you I’ll send them. I fixed the resistor because I can’t get a new one in Ireland for a sensible price. I put DVOM with amps probes across what looks like a black bodied fuse under the little PCB and powered it up and got 1.9 mA speed 1. 2.0 mA sp2. 2.1mA sp3 and 2.2&2.3 for speeds4&5 respectively with it all running. The suspect item was open circuit though so I drilled two holes in the covers do brought out 2 leads to attach an external 2 A fuse and it’s all going fine. But it’s all credit to you for the great video you’ve done. By the way what make is the little amps clamp you have - it’s really neat. My motor was pulling 12Amps through my meter if my meter is true

[@yezkaholic]

Does the blower motor run when a/c is off? I have some noise coming from the same location where my motor is on 2014 accord. The noise intensifies when im driving at higher speeds. Note a/c and heater are off and still get noise

[@mohammedsalim3714]

You must have 1 million subscribers

[@BigDog50001]

Not quite lol.

[@OneLegged-honda-mechanic]

That's a great video. It's funny, I just made a video on a pilot with the same issue. Mine wasn't as long and thorough as yours. You make nice videos.

[@BigDog50001]

Thank you, I appreciate the comment!

[@alwayslearning6355]

Is it possible for the blower motor to work at high speed if you have a bad power transistor? Thank you.

[@BigDog50001]

Yes it is possible.

[@gregorytoussaint509]

Question do the clutch on the compressor comes on even if the blower motor and transistor stop working?

[@BigDog50001]

No. I just did a video on this subject: kzbin.info/www/bejne/Y5LcZ3tnhpJ4b5Y

[@frogzilla87]

Front Blow is weak after switching to windshield defrost then back to front blow. Happened two weeks ago with switching from defrost then a weak front blow, went from weak to strong after a few minutes. Now it’s stuck blowing weak out the front, any clue?

[@alifaqwa2723]

My honda accord 2005 show N code which is “a problem in the blower motor circuit” what should i do and check ?? Need help

[@rbtguthrie]

Ron, I tried the Diagnostics (several times) on my 2009 Accord LX-P but nothing happened. Any thoughts?

[@BigDog50001]

rbtguthrie Try cycling the key from Lock (0) to On (II) positions and then turn fan control off, temp control to cold and select vent mode. Then cycle key from Lock to On again and then try holding recirculation and rear defogger like I showed in video.

[@roconnor7778]

Great Video! Thanks for all the details. Saved me lots of troubleshooting time. Subscribing to your channel now.

[@BigDog50001]

Thanks for the comment and welcome!

[@pilgrimhere652]

I bought two transistors for my 1993 Mazda 2600 i pickup,Keep blowing out ,, now when watching your video I figure the same problem happen to the pickup , Im gonna replace the blower motor and the transistor.

[@200932me]

Is there a site that defines what the diagnostic blinks mean? Haven't been able to find one. I got 10 blinks. Weak flow on a 2009 accord ex.

[@mainakthegr8]

my 2010 accord doesnt seem to have the diagnostic mode? am i doing something wrong? I turned on to position 2, pressed the circulate button and hit the rear key 5 times, but it didnt run the self-diagnostics

[@martindriver6026]

To check the blower could I wire it direct to a battery to see if it will run? After I have taken it out? Don't have any meters to work with.

[@BigDog50001]

Yes, it is possible to do that. If necessary, I use fused jumper wires and test while still in vehicle. It will come on at high speed if it is in working condition and if you take it out of the vehicle it could cause an injury if the blower cage hits anything (like you or your buddy).

[@jaybronze94]

Help please! My fan was on medium low speed & suddenly noticed no air out of the vents at any fan speed. Put in a Duralast resistor and fan worked again at all speeds for two weeks, then the fan was stuck on medium high speed. What do you think? 2007 Accord

[@BigDog50001]

A bad blower motor can damage the blower power transistor. Due to this, I like to replace both due at the same time whenever I can.

[@kevinpollard7523]

Super Informative! Thank you.

[@stejac51]

Ok ... this is apparently a common issue with Honda 'Fit' (or 'Jazz' in some countries) and many other vehicles as well ... it occurs because the lower bearing which is one of 2 self aligning 'oillite' bronze type bushes 'picks up' and seizes on the lower part of the armature spindle. The spindle shaft is quite soft and any dirt or corrosion reduces the bearing clearance and causes it to seize. The motor itself is a "hard push" fit into the plastic housing but can be removed by judicious application of a deadblow hammer to said housing whilst holding motor body in a vice or similar .... lower bearing can then be lubricated and possibly freed up ... but you will most likely not return the unit to 'as new' friction less running ... for the US$50 odd its best to buy a new unit from Amazon or similar and refit that. Standard motor/Fan unit will draw >14.5A @ 13V and rotate at 2150 RPMs ... when the motor 'stalls' due to excessive friction from the seizing bearings the current (massive increase!!) overheats the fan resistor pack (early and cheap models) and its safety circuit solder melts opening the circuit so no wiring damage occurs. If you have less than the 14/15 A current draw then as in this video the chances are the motor brushes have been compromised.

[@GuynelSaintVal]

does the same process apply to 2015 accord model?

[@pilos6]

Super!!!.........Very professional,,,,,,This by all means..."The Best Tutorial Video....I ever See.....Thanks.

[@BigDog50001]

Manuel Torres Thanks!

[@zzawoignatius3226]

Hey men, your demo is so perfect. Can do something for the AC too?

[@BigDog50001]

👍

[@doncorleone7940]

I have a question, if my a/c works fine yesterday then suddenly its not working anymore then it worked after one day then it didnt work again after 2 days, what could be the issue? Blower or transistor? Thanks.

[@BigDog50001]

You mentioned AC and then mentioned blower/transistor, you are not clear on the issue. Is AC not working (blowing warm air) or is the blower motor not blowing air at all or is it doing something else?

[@StayUnderTheRadar]

BigDogg: I have an 2014 Acura MDX and it has front and rear blower motors. The rear motor works, but the front blower works intermttently. Sometimes, after I drive for a few miles, the front motor comes on and the air blows warm for a few minutes, then gets cold. Can you please provide some insight on how I can repair that and what parts I'll need? Thanks!!!

[@BigDog50001]

Intermittent problems suck, anything that is touched can cause it to start working again. Probably the first test I would do is use a test light right at the motor when it is not working and see if it lights a test light (have to wait until it stops working). If the test light lights up, then the motor or connector is probably the issue. Another option when it stops working is to tap on the bottom of the motor (with key on and blower control on), if it starts working immediately after tapping then the motor is most likely the issue. You can also try the same tap test on the blower motor relay (that vehicle should have one but I did not look up a wiring diagram for it). After that, if tap tests didn't make a difference and the test light didn't light up, then I would troubleshoot similar to how I went through everything in this video.

[@StayUnderTheRadar]

@@BigDog50001 Thanks... I'll try to do it this evening and let you know how it goes. Thanks again! Your videos are the best for those like me who know absolutely nothing about cars and how they work. LOL

[@derrsonn]

Who gave this video a thumbs down? This should make a "Best of KZbin". What else could you want for free content?

[@BigDog50001]

I appreciate the comment, thank you!

[@eciura1]

OUTSTANDING VIDEO!!!

[@douglasfielder87]

Great vid my friend! Thank you!

[@rodriguezautomotrizhn991]

muy importante video claro y bien explicado gracias desde honduras

[@BigDog50001]

rodriguez automotriz hn De nada!

[@ryanstephens4659]

BigDog50001, thank you so much for this video. When I saw it was 43 mins long I almost didn't watch it, but I am glad I did. However, it didn't address the issue I am having. My 2012 Odyssey stopped blowing any air out of the center vents. Everything else works fine, A/C, defrost, heat to all other vents, just not center on the front of the dash. Any ideas?

[@BigDog50001]

Thank you. From what you describe, I would start by trouble shooting the climate control blend door/air mix motors.

[@metallideth503]

Dang bro your a badass. Best Honda blower motor diagnostic video on youtube