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Old 01-02-2010, 10:42 PM   #1
pawcio
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Question help needed. my first CEL.

so i've looked at some posts on the forum as well as did some research on google and got some conflicting information. i will now dip into the cumulative knowledge of maxbimmer for some advice.

i got a cel. let's not go into the reason for it (might be a thread topic for another day). i think the problem has been solved, but i'm now assuming that the cel stays on whether or not the problem remains until it is reset. am i correct?

is resetting a cel in an e46 only possible by using an obdII scanner? if so, what is a reasonable price to pay for it being done. if not (*fingers crossed*)is there a manual way to do it?

thanks for any informative help in advance.
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Old 01-02-2010, 11:05 PM   #2
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If you unplug the battery, it should clear it, assuming the problem was fixed...and its not airbag light, those have to be reset from what i remember!

Any OBDII scanner should be able to do it, if you are ever in the area, stop by i can do it for you...takes 5 sec!
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Old 01-03-2010, 01:39 PM   #3
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^ thanks for the info. luckily tho, this afternoon i had to go out and i realized that the cel was gone when i started my car. so i have a new theory. is it possible that the ecu resets the cel after it cycles through its regular checks and the original problem is fixed or gone?
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Old 01-03-2010, 01:53 PM   #4
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Depending what kind of code it is. For instance a sporadic misfire may go out when the car is not misfiring. However if there was to be an open circuit aka cut wire going to a coil, the light would remain on due to it being a hard fault.
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Old 01-16-2010, 08:56 AM   #5
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I had both an OBDII scan reader and Carsoft. I can diagnose and reset virtually any CEL code. If ya wanna hook-up and have it checked let me know....
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Old 01-17-2010, 02:32 PM   #6
pawcio
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Quote:
Originally Posted by nachos23 View Post
I had both an OBDII scan reader and Carsoft. I can diagnose and reset virtually any CEL code. If ya wanna hook-up and have it checked let me know....
thanks for the offer, but all is good, and the cel was caused by something minuscule anyway. there wasn't actually anything wrong.
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Old 01-17-2010, 11:57 PM   #7
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CEL may go off, But the code will probably still be stored. You can get it read and cleared for free at Partsource. Or better yet get a Peake Tool.

It's well worth the cost believe me.
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Old 01-29-2010, 12:54 AM   #8
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CEL may go off, But the code will probably still be stored. You can get it read and cleared for free at Partsource. Or better yet get a Peake Tool.

It's well worth the cost believe me.
so its common for the CEL to go off after it has been on? Does the ecu store all codes even if the CEL goes off or only certain ones. I had the light come on and off and every time I decided to get it pulled the light was gone. I waited till it finally stayed on till I got to the mechanics to get it pulled, stupid me.
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