Check Engine Light? O2 Sensor Heater Circuit Malfunction - Code P0141

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What is check engine light code P0141? This Oxygen sensor heater code diagnostic will show you how to check your 02 sensors for defects or failure when getting the DTC code p0141 or similar codes. Andy shows you how to trace back from the oxygen sensors to test wiring, fuses and more to pinpoint the source of your trouble.
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While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.

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27 июл 2024

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Комментарии : 307

@1AAuto 3 года назад

√ *Watch the Video* √ *Buy The Part at 1A Auto* 1aau.to/m/Visit-1AAuto √ *Do it Yourself* √ *Save Money*

@sabrinawilliams3746 11 месяцев назад

I have looked at many many videos on my fault code P0037 and this one by far has given me the most in depth information on what may be the problem. Thank U!!!!!

@BenRay727 3 года назад

The whiteboard paired with clear explanations made for a great video 🤙🏼 Currently working on a different chassis and I still feel confident enough to diagnose. Thank you.

@vernonjackson6387 3 года назад

Excellent Video!! The drawing and your detailed explanation of what could happen in any given situation with the wiring/sensor were superb !

@anval1257 3 года назад

Great way to explain what it could look complicated in a simple way ...Excellent Video !!

@U4Eye 3 года назад

You tested and trouble shooter this issue like a Real Pro as my mechanic even learned so much! Excellent skills

@SteveInQLD007 3 года назад

brilliant explanation for us dummies that know WHAT the code is but not sure HOW to test what's going on! Well done

@BryanG830 4 месяца назад

This code popped up and I was a little confused when it said O2 sensor heater. But this video clearly explains what O2 sensors do, what where they're located and what the cause might be. I love coming to this RU-vid channel.

@anthonymoore8153 13 дней назад

This guy is a good teacher

@andyl5645 2 года назад

It was helpful. Thank you. You were very clear, specific, and stuck right to the issue without going off topic. Great job!

@1AAuto 2 года назад

+Andy L Thanks for checking us out. Shop for high quality auto parts on 1AAuto.com: 1aau.to/m/Shop-1AAuto-c

@rickymeadows5176 Год назад

Most Informative video I have ever seen on RU-vid for pin-out voltage check of 02 sensors, thank you so much for this info !

@martinherrera4907 Год назад

Definitely one of the best videos,, well explained, detailed… It really helps to understand which the possible issues are and how to check them… 👍🏼👍🏼

@nicgliacco6766 2 года назад

Very well done video, excellent explanation and showing of diagnosing procedure. Thank you!

@turamash7808 3 года назад

This was simple and well explained. Thanks very much!

@davidcoleman4865 3 года назад

Awesome video, broken down so it's super easy to follow along and understand. I like the way this guy explains stuff. Thank you sir.

@FleetTech97 3 года назад

Great explanation and diagnosis! More of these diagnosing videos please!

@terriessex2083 2 года назад

That was so informative the greatest instructional video I've seen yet really with vehicles I would love it if all mechanics would explain it so simply and so cut-and-dry thank you so much from one female to an auto mechanic

@lard1892 Год назад

Does your plumber, electrician, doctor,realtor, lawyer, explain everything to you so you can do it yourself???? For some reason a mechanic is supposed to help out everybody for free

@mckoylach1622 3 года назад

Thanks for your testing procedures,great video

@jameszelaznysr5179 Год назад

We need more people in the world like you great presentation short and to-the-point

@annepoynter6600 3 года назад

At last a clear ,precise diagnosis thank you

@NomadicDmitry 3 года назад

Awesome, very interesting! Thank you for an explanation. I have Chevy Express van and it throws the O2 sensor codes.

@viorelpopov5771 2 месяца назад

That’s amazing. Probably is the most proper explanation on RU-vid so far I found. Nice work

@reikhard 3 года назад

best video about this subject i've seen! Thanks!

@aliohtcarlton-hobart860 2 года назад

Thanks for your teachings!, And simple break down of the mechanical operation.

@am6066 2 года назад

Great detailed video, however after going through all of your steps on bank2, I realized that if the O2 heater is good, the O2 sensor would be warm / hot to the touch and include all of your TS steps! BTW, still waiting on that 2000 Chevy Silverado door actuator change w/o opening the effected door! Thanks again!

@wrotedog 3 года назад

The best guy to explain trouble codes.. Bravo zulu..

@saiapupua72 3 года назад

Awesome video no one has explained and showed this as good as you. Great teacher

@trini_boi2414 3 года назад

You're the man I love how you did it on paper good job 👍

@tombarrow2341 3 года назад

Don’t often comment, but this was a great instructional video

@qrs3658 2 года назад

very good video. very concise and to the point. its like, no need to go to automotive school when we got these very informing videos

@alangardner3717 2 года назад

your drawing helped me understand how the oxygen sensor worked found blown fuse cleared code on cheap obd reader magic thanks for your help.

@muhammedazam8938 2 года назад

Excellent job man.... Keep it up... You have been a real help understanding the working of O2 sensor 👍👍👍

@muhammedazam8938 2 года назад

I have heater circuit code for all the 4 sensors for Ford explorer 09 could there any other reason apart from the possible reason you stated in the video just and what could they be would be a great help to check and diagnose them

@leatherdevil21 4 года назад

Thanks for this video! It was a big help!

@1AAuto 4 года назад

Glad to assist Chuck!

@mckoylach1622 3 года назад

Great,elaborate diagnostic procedures. Are all O2sensor with four wires have the same set up ? Thanks

@dawnrobbins5877 2 года назад

Excellent demonstration!

@angelogarcia7941 Год назад

Super helpful thank you! I need help. Instead of replacing the O2 sensor, I preformed the test like you showed in the video. I found that I do have power to the senor but no pulsating light (4:56) when checking the PCM circuit. No light at all. So, I'm assuming something is broken, as explained in the video at around 5:56. How to I find this broken connection?

@Jay-dn1fr 2 года назад

Thank you very much for creating and sharing this video; the 02 sensor theory is simply and clearly explained.

@kurtisgefrom 3 года назад

What if you get all the O2 codes like you said at the end? What would you check first. Fuses were good in both panels.

@tracksidechasers6812 Год назад

Great video, you explain that perfectly. One question though how do you check the blue wires that you have going from the O2 sensor to the PCM to see if they're okay? The power wires I understand how you did that but I was just wondering if the power wires are good how do you check the other two wires going to the PCM? Thank you very much have a good day

@samuelanderson1415 4 года назад

Informative video thanks 👍🏼👍🏼👍🏼

@1AAuto 4 года назад

Anytime Samuel! We are glad you enjoyed it.

@mayken6661 3 года назад

Great visual explanation !

@CR3D1T_UN10N 29 дней назад

absolutely amazing video! great explanation and demonstration on how to properly diagnose it!!! Helped me figure out that my PCM was bad after the i got a o2 sensor heater malfunction

@michael-xe7rz 3 года назад

Best Display YET!!!!

@rdgb810 2 года назад

Really easy to understand thank you

@mikeaho4143 4 года назад

Great job as it was very comprehensive.

@1AAuto 4 года назад

+mike aho Thanks for checking us out! 1AAuto.com

@rogerrivera4012 4 года назад

Well explained boss! Thank you.

@1AAuto 4 года назад

+Roger Rivera Thanks for checking us out! 1AAuto.com

@elilerden117 3 года назад

Thank you very for the wonderful video helping a lot

@claressaadams3499 2 года назад

You are the man thank you that helped like 180%…. Confusion over.💯👍🏾

@themadasshatter1088 3 года назад

Super good/clear explanation. You're awesome, thanks.

@1AAuto 3 года назад

+The Mad Asshatter Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

@DadsGotADeal 2 года назад

Super quality video. Thank you so much

@InlikeMikeQuinn 3 года назад

Awesome explanation! Thank you!

@1AAuto 3 года назад

+Michael Quinn Thanks for checking us out. Shop for high quality auto parts on 1AAuto.com: 1aau.to/m/Shop-1AAuto-c

@bigswami88 3 года назад

Great vid easy to understand, I am having a problem with my 95 Jimny Cat light in dash. Light only turns off after driving and exhaust has heated up. I tried your method but my o2 sensor only has one wire going to it. All fuses are good. Any ideas how to test this?

@newtonfamily2274 2 года назад

Great clear explanation. Thanks for the video.

@1AAuto 2 года назад

+The Newton Family Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

@skeleman1963 8 месяцев назад

Super informative video..need to check my issues now!

@hazaelmurillo6638 8 месяцев назад

Great video, thanks for sharing your knowledge

@outspoken3297 11 месяцев назад

Best video so for I have seen on utube. Excellent explanation

@alancameron2433 2 года назад

Thank you for the great help.

@internetguy5110 2 года назад

Hi! Excellent video. The last bit touched on what I think my issue is and I could use some advice. '04 Acura TL, getting both P0135 and P0155. I don't have a remote starter, it's all stock as far as I know. Mechanic replaced both O2 sensors, engine code remains. Can you expand on other things like the remote starter example that can cause this kind of multiple, persistent codes? I've checked the fuses. Looked fine but swapped for fresh new ones anyway to no avail. The car has started stuttering during gentle acceleration between 25-30 mph. Could an issue like this be related? Many thanks!

@harvestblades Год назад

Extremely helpful video.

@timazevedo Месяц назад

This video was amazing thanks for sharing your knowledge and experience

@trisbreezydc2 2 года назад

Great video, deff pointed me in the right direction

@jorgemora7190 Год назад

Good job. Thanks for your time

@user-sr6om4vy2x Год назад

excellent video, you guys are the best!

@rjmlondon Год назад

Hi great video. The test light pulsing i assume is ecm doing pwm to heat up sensor?

@abdel-hak2658 3 года назад

Hey :) i have opel corsa C and i diagnosed this p0141 O2 Sensor Heater Circuit Bank 1 Sensor 2. should change the bouth Sensor ? and wher i can find exaclty the brocken one ? thanx

@teknique8292 2 года назад

Wow great video! Thank you!

@Marc99GT 10 месяцев назад

Great video! I have a 2011 Impala LS and I can't clear the P0036 and P0141 codes. I replaced the sensor, I have power on the supply side heater and the computer grounds as well. I ohmed out all 4 wires to the ECM and found continuity and no resistance. I believe either the heater is bad in the new sensor(Denso) or the ECM is faulty.

@AlejoKCPro 11 месяцев назад

this is what i was really looking for thank you very much

@tundrabear9663 3 года назад

I have a 2004 jeep liberty, i wondering if you have a video that explains the Speed sensor and what could be the issue not connecting.

@DD-gd3fr 11 месяцев назад

awesome clear explanation thank you

@viktoriadesousa7091 4 года назад

amazing explanation. Thanks

@1AAuto 4 года назад

+Viktoria DeSousa Thanks for checking us out! 1AAuto.com

@chankokhoi4496 6 месяцев назад

This is a good information to know the O2 how to check it think you very much Brother

@djpantera01 3 года назад

Very helpfully thx for that information.

@1AAuto 3 года назад

+Domant 7 Thanks for checking us out. Shop for high quality auto parts on 1AAuto.com: 1aau.to/m/Shop-1AAuto-c

@LionsTigersBears 2 года назад

Great explanation....

@sylvainlessard4174 Год назад

Very nice video, perhaps I would add to measure the average resistance of the sensor itself, just to prove degradation of the element itself, but normally, there would be no continuity. But how does the control unit of the car knows the element of blast ?

@speedfreek700 3 года назад

good explanation. thank you!

@1AAuto 3 года назад

+speedfreek700 Thanks for the feedback!

@robbobcat7286 3 года назад

very excellent and very clear

@maxximum18 3 года назад

having a tough time finding my heater fuse on my lexus gs 2007 does it have one?

@kashiapomo1958 3 года назад

thank u very much- this was wayyy helpful

@1AAuto 3 года назад

+dennis parrish Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

@joshfig96 4 года назад

My p0141 and p0161 both come on at the same time, 6 key cycles.. can it be my ECU? 2003 Jeep Grand Cherokee.. need my emissions asap

@osamasaif 2 года назад

Excellent demisntratino on white board. Keep up the good work

@fookutube501 Год назад

Thank you for sharing .I have 2 question,I tested my 2 white wire from the heater and it read 00 ohms(even when its running),also tested signal and ground and it reads 1 volt,would this be consider as a bad sensor?. I also tested the signal and ground from the ecu and it reads 12.4 volt is this too high?....

@lennysegura1477 2 года назад

Bro Thank You Very Much This Def. Helped Me Understand What Is Going On With My Vehicle Now I Can Def. Stop Getting Ripped Off At The Damn Mechanics !

@1AAuto 2 года назад

+Lenny Segura Thank you! We love empowering our customers and showing how to perform DIY auto repairs with our high-quality auto parts. 1aau.to/m/Shop-1AAuto-c

@buffystclair9042 2 года назад

If you dont have access to wiring diagram or forget the colours you can switch sensors side to side and see if code moves same as you would do moving coils to check misfire .

@ryanside9117 3 года назад

Great video bro.

@jasonhumphry5836 3 года назад

Awesome video you guys rule 😎

@meisterlampe17 Год назад

Hi! What is the expected current flowing through an O2 sensors heater? i measure 0.5A only, which would be some benign 7 Watts of heating power. I measured 4 Ohms on the sensor which should give me more than 3 amps. Or is it pulsed and thus less? Plus side of circuit is fine, the cable to the PMU i still have to test. If the PMU is the problem, what do do?

@paulpalacios7197 2 года назад

Does the heater element only turns on while the engine is cold then shuts off, I have a 08 Jeep Patriot and the temperature of the O2 sensor is high even reaching operational temperatures. Would it be bad ECM? Car runs great.

@Ninurtha1 Год назад

Excellent video .

@gedionsamuel2256 3 года назад

If the Oxygen sensor is fairly new, changed all sensors a few months back, what could possibly be the reason for this downstream sensor failure?

@luciensenor9589 7 месяцев назад

Thank you for the video

@goham7201 2 года назад

Very nicely explained. I had this code and replaced with a new sensor and got the p0420 code now instead of the original code. Any help would be appreciated.

@805BeachRecoveries Год назад

Your cat is bad. Sensor is reading the same before and after the cat

@thomaslapsley7867 Месяц назад

Excellent video

@gedionsamuel2256 3 года назад

Liked n Subscribed very quickly!

@roshenhoward5980 2 месяца назад

Thank you for sharing.

@karlhungus545 11 месяцев назад

Excellent video. I have a '99 GMC Sierra 2500 that has an intermittent engine light, P0141. I already changed the sensor once myself and it just came back on. It's off at the moment, but if/when it comes on again, now I know how to test it. Funny that twice when I had it in to the mechanic(s) for other things, they couldn't seem to figure it out🙄 Useless...