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How To Reset Check Engine Light: Follow These 4 Easy Ways!

How To Reset Check Engine Light: Follow These 4 Easy Ways!
4.5 (89.33%) 15 votes

The check engine light comes on when your car’s computer detects an issue within the powertrain. It can indicate a major or minor complication, but ignoring it definitely makes the problem worse, leading to costly damage and repair. You can avoid all the hassles if you know the reasons of the light coming on. Nevertheless, it sometimes does not turn off despite solving the glitch. In that case, you will need to know how to reset it.

4 Ways To Reset The Check Engine Light

It could be annoying if the red light of the check engine indicator does not go away. If it happens, you won’t be able to find out any trouble in the future. Your vehicle’s computer is at fault here, and it needs a little fix to resolve the issue.

Check this video to find out how to do these steps properly!

Use A Scan Tool

check engine scan reader
A scan reader can identify and erase the error codes.

Plug an OBD Code Reader to the OBD port in the fuse box. Turn it on by pressing the power switch and then holding down the ‘read’ button on the scanner. Give it some time to scan your engine for any error codes. The screen will display the error code(s) and you can erase them with the help of the ‘erase’ button. Don’t forget to turn on the ignition before deleting the codes.

Apply The Battery Disconnecting Technique

Identify the battery under the hood and disconnect its positive power cable with the help of a wrench. Wait for at least 15 to 20 minutes before turning on the ignition and do it for three times. It will delete the emissions and readiness flag data from the computer’s memory. Now, reconnect the positive cable and switch on the ignition again with the key. The check engine light is supposed not to turn red this time.

Turn The Ignition On And Off

It’s a repeat of the previous technique without disconnecting the battery. You just have to put the key into the ignition and turn it on and off for three times in a row with the gap of a second in each step. After you are done, drive the car to see if the light is reset.

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Let The Check Engine Light Go Off By Itself

check engine light
Wait for the light to go off by itself.

It’s the easiest process because you need to do practically nothing except for driving the vehicle as usual. The computer system in most cars keeps rechecking the problems that activate the light in the first place. If it’s a minor issue such as a glitch with the mass airflow or O2 sensor, it may fix automatically, and the light will go dark. However, if it still stares at you after three days, you have to apply the methods mentioned above to reset it.

What If The Check Engine Light Returns?

It can come back within a few days or weeks, which may signal a major complication. If it keeps happening despite following the resetting procedures, you should take the car to a service center and have it diagnoses by a professional mechanic. Such a repair shop uses more sophisticated tools to find out the exact problems.

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22 thoughts on “How To Reset Check Engine Light: Follow These 4 Easy Ways!

  • August 25, 2017 at 3:45 am
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    Ilove car from japan, you give lesson on how maintanance can be done, whichever needed you provide the information at atime.lwo’d like to tell my friend and other people to keep on buying used car from japan

    Reply
  • September 22, 2017 at 2:21 am
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    I have been asking many mechanics what check engine light on my dashboard means with no satisfying answer.

    Reply
  • September 22, 2017 at 1:41 pm
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    My car doesn’t charge but the battery light doesn’t appear on the dashboard why?

    Reply
    • September 26, 2017 at 2:40 am
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      Thank you for contacting Car From Japan. However, we cannot answer your problem because there are many things we need to see at your car. I suggest you bring the car to a local mechanical shop to solve your problem.

      Reply
      • September 26, 2017 at 6:24 am
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        Mine has an engine check for almost a year now when i took to the dioganisys machine it just gave numbers which was the cause of the problem but couldn’t know what was the meaning of those numbers

        Reply
  • September 22, 2017 at 2:36 pm
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    Like these lessons, I learn a lot from this platform.

    Reply
    • September 26, 2017 at 2:40 am
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      Thank you. We will provide more useful information like this. Stay tuned

      Reply
  • September 22, 2017 at 4:10 pm
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    Morning
    Actually it is a very educative information shared there. I really appreciate

    Reply
  • September 22, 2017 at 8:40 pm
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    Well taught have learnt something here,thanx for your tips

    Reply
  • September 22, 2017 at 8:44 pm
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    Well taught have learnt something here,thanx for your tips

    Reply
    • September 26, 2017 at 2:39 am
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      We are glad that you like the article. Don’t forget to share with your friends!

      Reply
  • September 23, 2017 at 4:59 pm
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    How do you resolve a throttle sensor issue?

    Reply
    • September 26, 2017 at 2:39 am
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      Thank u for asking us. We will search more information and update later

      Reply
  • September 24, 2017 at 12:24 pm
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    Wonderful site..my car is a Nissan sunny saloon B15 model..I would like to get updates on it power steering ,fuel consumption and power performance

    Reply
    • September 26, 2017 at 2:37 am
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      We are happy to receive your comments. Please share with your friends so they can enjoy this article, too.

      Reply
  • September 24, 2017 at 12:27 pm
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    Very informative site and a great assistance

    Reply
    • September 26, 2017 at 2:37 am
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      We are happy to receive your comments. Please share with your friends so they can enjoy this article, too.

      Reply
  • October 22, 2017 at 9:36 pm
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    It’s interesting to note the second point that says disconnect the positive terminal.. this is obviously to isolate any power to the computer box. Surely it would make sense to disconnect the negative terminal​ and then the positive thereafter being that 99.999% of vehicles nowadays are if a negative chassis/earth? Safety first?

    Reply
  • November 9, 2017 at 8:42 pm
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    Next, tell us about the ABS lights. And how to reset it. Thank you once again.

    Reply
  • November 11, 2017 at 2:28 am
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    Informative, clear and concise. Thanks

    Reply
  • November 13, 2017 at 12:24 am
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    Thanks a lot, i just learnt something very important

    Reply
  • November 13, 2017 at 10:20 pm
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    Mine has an engine check for almost a year now when i took to the diagnosis machine it just gave numbers which was the cause of the problem.

    Reply

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