How To Clear A Check Engine Light With No Scan Tool

In this video, I'm going to go over how to clear a check engine light without a scan tool. Also a number of reasons why you would not want to clear a check engine light with or without a scan tool.
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There are many instances that you're not going to want to clear your check engine light due to two reasons that you may need that information for your repair. In some cases, it's not a bad idea to clear your check engine light prior to diagnosing just to verify the problem is still there and it was not a fluke like a loose gas cap or something along those lines.
If the check engine light does come back it is then definitely time to make sure you have it repaired. But there are ways to clear the check engine light without a scan tool.
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Disclaimer:
Due to factors beyond the control of The Flat Rate Mechanic, it cannot guarantee against unauthorized modifications of this information or improper use of this information. The Flat Rate Mechanic assumes no liability for property damage or injury incurred as a result of any of the information contained in this automotive repair video. The Flat Rate Mechanic recommends safe practices when working on cars or trucks with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this repair video. Due to factors beyond the control of The Flat Rate Mechanic, no information contained in this automotive repair video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained.

[@FlatRateMechanic]

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[@johnnygreene4297]

¹

[@brucegoody8405]

Just cleared the engine check light on my 2012 VOLVO S80. I just removed the neutral cable for about a minute and finished it. Thank you very much.

[@jjoyceman]

Worked like a charm on my 2006 Ford Taurus. Thanks for the video !

[@FJB-522]

5:08 2000 Park Avenue, bad MAF sensor. Replace engine soon light on intermittently, code came up with no light on. Do I still need to clear the code with no light on and new MAF sensor replaced?

[@ahmadyazidzainalabidin9300]

Cleared the engine check for my Hyundai Accent 2005. Thanks.

[@dionnasgrignoli1329]

But can it pass emissions because according to what he just said, it won’t. So it defeats the purpose

[@edzaunick1728]

Worked for me! 2010 Mazdaspeed 3

[@trendtrader88]

My car is a Nissan Sylphy 1.6 Auto manufactured in 2024. I used your unplug battery terminals method and it worked !!! If I go to Nissan Service Centre, they may tell me some bull & cock story and I will be completely at their mercy. I do have a query though. What if there is a fault in the engine somewhere and unplugging the battery terminals simply reset the computer in the car but does not address the real engine issue. Then what ? Then its a matter of time the computer will pick up that same fault again and Darth Vader in the form of that dreaded engine warning light will reappear ? Anyway, Darth Vader aside, thank you for uploading your video to share your "How To Fix" tips.

[@mdaaban3038]

Needed help I bought Hyundai sonata 2017 2 days ego. Everything was perfect but i face engine night on and the car little bit breveting. This is my first car and I don’t have enough idea about it. Could you help me to find what’s wrong with it and how much it’s gonna be cost to fix?😒

[@RedSeaConsulting]

Awesome - learned a lot - MANY thanks!

[@TyG2k9]

I got my intake/exhaust solenoids and map sensor replaced on my 06 HHR. Is it ok to clear the check engine light then? I have to get emissions test before the month is up.

[@MIKEJAMMER]

No all you have to do is disconnect the negative cable from the post allow it to sit for 10 to 15 minutes then reconnect start the car The engine light will go off now you have to reset the computer and you have to drive it to set it

[@user-hy3ps6uo1x]

How long do you drive it to reset

[@wskripka1]

How do you reset the 😂computer ?🎉

[@martinfromseacity2010]

Thanks, good info

[@Jeremiah-pu5vp]

I pulled and shorted cables together then pulled all fuses mentioning anything with pcu and reinstalled fuses reinstalled cables.. Worked on a 17' caravan.

[@GloriaRosevelt]

My car tried to start my battery is new it just wouldn't kick over and start I hired a mobile mechanic he hooked up the scanner and said he re did the codes now my car is worse than ever it doesn't have any power. Please help

[@chelseafairfax8978]

How long after completing this step should you get emissions test?

[@alexbras]

I have the same problem. I reset it and my car didn't pass inspection. I have to drive it more than 100 miles. the problem he comes back lol.

[@gregboots3512]

Worked like a charm

[@hectorsanchez1960]

My engine light was on Took it to have checked code P0446 fuel pressure sensor I replace fuel pressure sensor my engine light was still on does it goes off when you fix the problem or you have to unplug the battery to clear the engine light

[@DOLfirst]

Get a new gas cap

[@BaneTheAssassin]

@@DOLfirstnew gas cap doesn’t change fuel pressure that has to do with tank pressure and you would get an evap leak not a fuel pressure code

[@forgottenknowledge8917]

I did this on a 2007 Sonata. It's been 2 years and the 420 code didn't come back

[@michaelguilas4057]

What we want to know is how to erase the check engine light permanently.

[@chubbzy24153]

Fix whatever problem is triggering the code....duh

[@drinkyourpgtips.]

On an older car jump the bulb to the battery charging light🤣 you could probably do this on every car but a modern clocks will be difficult

[@myname-isvincent5683]

@DRINKYOURPGTIPS I mean if you already have access to it, then at that point just smash the bulb lol

[@periii86]

This didn’t work on my wv beetle and mechanic suggested deleting the code with a scanner tool. Let’s see if it will work that way

[@shawnbauer2986]

Y'all know the check engine light comes on for a reason right!? They don't just pop on to annoy you. Yes it could be something very simple (loose gas cap) also could be the start of something very serious.

[@kingbolen_official]

Nice content,thanks for sharing!

[@FlatRateMechanic]

You are very welcome

[@Samson-EC]

Does not seem to work on a mercedes benz 2006 slk350. Tried for 5 minutes with disconnected neg cable..

[@Ray-Koto-McLellan]

Comment at the very end exactly what I'm hoping to try and do. Clear the codes Drive the vehicle see if what I did worked. And if not have to go come back so I can take it and have the mechanic do the job. Or better diagnose the problem that way I do not do the stupid thing and parts Canon the vehicle

[@johnfurseth9791]

Use a resistor don’t short!

[@BettyHussein]

What need to be changed

[@chastityhartman9044]

My car has a plms yuppie 😮 trying figure it out.

[@SLiveForTheMoment]

I have issue with p0448

[@musicfashionstyle4251]

Just work couple days and come back again.

[@BettyHussein]

Ineed help

[@wernerostwald287]

When you used the wrench to drain and residual voltage you almost shorted out the battery which has known to explode when shorted Be careful guys!

[@lifestylestv1178]

or blow a main fuse

[@wilmorris4225]

Define older or newer models. Seems pretty subjective.

[@bartholomew1096]

Probably 2010 and older

[@bobcormier5098]

That dosint drain if you put a wrench to both terminal s. ....it will fry a computer

[@billwilson6096]

Bob……take another look, he is not touching the battery terminals, that would be dumb, he is connecting the cables.

[@The_magic_mountain33]

@@billwilson6096 hey ! I had a po420 code.. The mechanic cleared the code ... I'm running it 150 miles and taking it back to hopefully pass emission and inspection... As long as that check engine light doesn't come back on I'd be ok on that right? ? Please give your input please.... Ty

[@billwilson6096]

@@The_magic_mountain33 …. You should be fine at passing the emission test, basically as far as I know this test is simply a look to see if the CEL is showing in your dash cluster.

[@The_magic_mountain33]

@@billwilson6096 I picked up some stuff to. Dump in my gas tank to hopefully help not trigger another engine light .. I dump some cata clear .. He said he didn't see any holes in the converter so I'm hoping your right cause I just spent 5,000 on a tractor mower and don't have 1,000 bucks for a catalyct converter ... My guess is an oxygen sensor ..hope the cleaner helps and your right bout the check engine light staying off... Thanks

[@martyhart135]

Didn’t work 🤷‍♂️🤷‍♂️🤷‍♂️

[@N-one123]

It will come back in few minutes hours or a day don’t make people fool 😡

[@myyoutubechannel3161]

What if it does not come back on ? What does that mean

[@CeeJayThe13th]

It's not to fool people. Sometimes you've fixed the issue but it doesn't make the light go off.

[@frazzleface753]

@@myyoutubechannel3161 If it doesn't come back on then the car's computer has not found a fault. Sometimes the computer will allow a certain number of faults within a set period of time. Once it goes over that number, it throws a Check Engine Light. If it stays below that number, no light.

[@myyoutubechannel3161]

@@frazzleface753 thanks for the information

[@myyoutubechannel3161]

@@frazzleface753 got you. Because i cleared my check engine light like the guy says Here. But it has been a month and has not came back on.. But i was just curios

[@brettlawton9513]

How to clear a check engine light without scanner but we're going to use the scanner, seriously SMH 🤦🏻🤷🏻

[@RQCNDY]

Talking about being irritated! Grrrrrr.... you used a scanner!

[@butterisawesome6969]

He only used it to show the codes, you don't need it to actually clear the codes

[@manny3914]

GET TO THE POINT!!!!!!

[@rodneyharrison9108]

He cleared it before he turned the car off smh.

[@streetprofits8563]

He didnt

[@fopal-gang7108]

Car needs a fuel Valve I believe. Super easy to change 30-50$ for the part😊

[@FloridaReaper75]

Just pull the ACU fuse and put it back in…