Honda Accord Blower Motor Troubleshooting and Replacement 2012 (2008-2012 Similar)
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- Опубликовано: 7 авг 2016
- In this video, I show you how I diagnose a Honda blower motor circuit, including the blower motor and the blower motor transistor. I also show how to replace the blower motor and the blower motor transistor (resistor).
The exact vehicle in this video is a 2012 Honda Accord Special Edition.
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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
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?
@@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.
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
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?
@@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.
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.
Thank you, I really appreciate the comment!
I agree , u thought someone was fixing to go down a pointless rabbit hole.
I like being suprised every now and again.
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.
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.
I appreciate the comment, thank you!
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!
Robert Alvarado Thanks!
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.
I watch so many car repair videos on RUclips, 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!)
Thank you.
You've also made it absolutely clear to me that I need to get a PowerProbe! :)
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
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.
Thank you, I appreciate the comment!
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
Just bought this panel off Amazon for my ‘08 Accord and it does help with the noise.
THANK YOU SIR! Best video out there. Thanks for all the pointers.
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.
I appreciate the comment, thanks!
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!
👍
Your explanation is excellent. Great detail, full examples with the theory behind the tests! Thanks for your help
Exceptional video. It helped me solve my problem for way cheaper than I was quoted for by a mechanic. I appreciate this video tremendously.
Glad it helped, thanks for the comment!
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!
lol, Thanks! Nice job going through the diagnosis steps!
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.
Very good instructional video on how to test /troublshoot resistor / motor problems!!! Thank you
Amazing video! So professional! thank you thank you so much. I was able to fix my odyssey 2007 blower.
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!!
Glad to hear you got it fixed!
Perhaps try a new mechanic, not the one who changed your last cabin filter.
Thank you so much. This was one of the most helpful videos I have found on RUclips. Great details!
Thank you!
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.
I was told to change both motor and resistor, but thank you for showing us the full and proper way to troubleshoot this issue.
I generally like to replace both as a general rule.
Super Informative! Thank you.
By far, one of the best videos I have watched! You tha man.
I appreciate the comment, thanks!
This was a great video. Saved me tons of headaches. Thank you kind sir
I appreciate the comment, thanks!
Very GOOD video man! Very well documented and easily explained
I appreciate the comment, thanks!
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!
Thanks for the comment!
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.
Great video! Very thorough. Thanks for taking the time to create this!
Thanks 👍!
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.
Glad it helped, thank you for the comment!
OUTSTANDING VIDEO!!!
Great video! Thanks for all the details.
Thanks!
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 RUclips 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!
Thank you.
I imagine Honda Dealerships hate BigDog! Haha
Great work, thanks for taking the time to go through in detail.
You bet , thanks for watching 👍!
This video was so helpful. Thanks!!
Hery Vallellanes Thanks, glad it helped!
One of the best trouble shooting video, good work and thank you!
Thanks!
good job mate, your video just saved me the money on new Blower Motor.The diagram you have put on is very useful.
Glad it helped!
Great video. Thank you,
Thank you for sharing such valuable information.
Gr8 video.
Thank you for the comment!
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..
👍
Holy crap the explanation was perfect. Diagnosis, confirm, repair. EXACTLY how it should be done. 😎😎
I appreciate the comment, thank you!
Great video, very detailed, I learned a lot! Thanks!
Thanks!
thanks for your time on the video brother helped very well
Glad it helped, thanks for the comment!
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!
Pianoman Thanks!
Awesome video!! Helped me alot. Thank you!!!
Joshua Grant Thanks for the comment!
Thank you for this wonderful tutorial. It gives lot of information about my car
No problem 👍!
Great info. I admire your professionalism
Thanks 👍!
Great video. Thanks for sharing.
Thank you!
Thanks for the info
Thanks Bro you explain it so perfectly regular guy like my self got it done 👍 😅 thanks
👍
Another great video. Thanks
Thank you!
Great video! Thanks a million.
I appreciate the comment, thank you!
thanks for the video , well explained
Thank you for the comment, I appreciate it!
Awesome video. Thank you!
Thanks, I appreciate the comment!
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!
Ron Hadge Thank you.
Thanks, I was able to fix my heater and AC by following this video. The explanation was very clear.
Glad it helped, thanks for the comment!
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 👌👍🏻
Thanks for the comment!
Excellent Video. Thank you.
Thanks!
Excellent presentation very knowledgeable and professional
Thanks 👍!
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.
Thanks for the comment!
brilliant video. Thanks
Thanks 👍!
Great Video! Thanks for all the details. Saved me lots of troubleshooting time. Subscribing to your channel now.
Thanks for the comment and welcome!
Super!!!.........Very professional,,,,,,This by all means..."The Best Tutorial Video....I ever See.....Thanks.
Manuel Torres Thanks!
Great video, thanks!!
Thank you for the comment!
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.
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.
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.
I will see what I can do, thanks for the comment and the suggestion!
Great video.
Thanks!
Great video, thanks
Thanks, I appreciate the comment!
Great Job . Thank you
Thanks!
Good complete info !!
Thanks!
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??
Timothy Bernstetter Thank you! I would try the local junk yard first.
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
Glad it helped, thanks for the comment!
Big Dog50001 Automotive so it turns out the fuse keeps blowing for the climate control... know what could be the problem?
@@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.
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.
Especially when it costs 5$ for the 1 fuse since it comes in a pack and only has 1 I need
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!
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Great video
I appreciate the comment, thanks!
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.
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!
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.
Thank you, I appreciate the comment!
muy importante video claro y bien explicado gracias desde honduras
rodriguez automotriz hn De nada!
thanks man this helped me so much that noise was driving my girl crazy!
👍
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
This is great!
Thanks!
You must have 1 million subscribers
Not quite lol.
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.
Thank you thank you thank you thank you
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.
Not a bad guess but actually Honda Power Transistors are controlled by current (micro amps) from the HVAC Control Unit. Thanks for the comment!
EXCELLENT
Thanks 👍!
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!!
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.
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?
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
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??
My honda accord 2005 show N code which is “a problem in the blower motor circuit” what should i do and check ?? Need help
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?
hi, very nice video, excellent presentation. by any chance do u have plan to shoot power window master switch troubleshooting.. that will be awesome.
This is what I have right now. I plan on doing another one in the future. ruclips.net/video/goLmhMHxR58/видео.html
Hey men, your demo is so perfect. Can do something for the AC too?
👍
does the same process apply to 2015 accord model?
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.
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.
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
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
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!
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