The correct way is to use code reader to read and reset the code. However disconnecting the negative battery terminal should also do it.
You have to plug in a code scanner, that will have have the option to reset the light. Unplugging the computer can also be effective, not recommended though. depending on where your at, done autoparts stores can scan and reset it for you.
Try Autozone see if they will re-set it if not, You have to take it back to the dealer to clear the code, If you did NOT fix the code that turned on the light it will just come back on.
Check
engine light comes on and off, these are indication that there is some
error code stored in your vehicles ECM. The engine module computer
needs to be scanned. These will give the code and as per the error code the
further problem can be detected and confirmed. The engine light
indicator blinks or remains steady on dash when engine computer
noticed any problem with any engine electrically operated components.
For
more help, I suggest you to refer the help links provided below. These will let
you know more about which areas to look, check, when there is engine light
coming up on dash panel.
---------
Click
the link below: -------
http://whoisbyme.blogspot.in/2012/06/malfunction-indicator-light-on.html
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http://howtobyme.blogspot.in/2012/02/check-power-train-message-with-orange.html
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http://whatisbyme.blogspot.in/2012/05/2007-toyota-highlander-hybrid-yellow.html
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http://whatisbyme.blogspot.in/2012/05/car-runs-fine-but-check-engine-light-is.html
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http://howtobyme.blogspot.in/2012/01/check-engine-light-with-codes-p2195-and.html
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http://schematicsdiagram.blogspot.com/2011/12/how-to-read-codes-from-check-engine.html
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http://schematicsdiagram.blogspot.com/2011/12/vehicle-smog-test-failed-due-to-no.html
http://schematicsdiagram.blogspot.in/2012/02/obd-code-is-cleared-but-check-engine.html
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http://schematicsdiagram.blogspot.com/2011/12/car-jerks-while-going-uphill-and-check.html
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http://schematicsdiagram.blogspot.in/2012/02/toyota-camry-check-engine-light-flashes.html
-------
These
details will help.
Thanks.
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