C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

How do you clear codes?

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Old Sep 3, 2002 | 01:29 PM
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Default How do you clear codes?

Just wondering how you clear old codes.
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Old Sep 3, 2002 | 02:08 PM
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Default Re: How do you clear codes? (champs_97)

disconnect the battery for about a minute and theyll clear
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Old Sep 3, 2002 | 02:40 PM
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Default Re: How do you clear codes? (vader86)

Our pull the ECM fuse. That will do it also.
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Old Sep 3, 2002 | 02:41 PM
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Default Re: How do you clear codes? (vader86)

Or pull the ECM fuse. That will do it also.
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Old Sep 3, 2002 | 07:26 PM
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Default Re: How do you clear codes? (Steel Blue 91)

Is one method better than the other? I know disconnecting your battery will cause the ECM to "unlearn" all of its stored parameters, which will temporarily affect performance. Will pulling the ECM fuse have the same effect? Sounds like yes would be the obvious answer, but I could be wrong.
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Old Sep 3, 2002 | 07:30 PM
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Default Re: How do you clear codes? (vetracer)

Pulling the ECM fuse will have the same effect as disconnecting the battery. ECM will have to relearn.
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Old Sep 3, 2002 | 07:35 PM
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Default Re: How do you clear codes? (vader86)

Both methods work the same. However niether clears the code it just moves it to history unless a problem still exist then it will come back as a hard code turning the light on. Soft codes or history codes must be cleared with a scan tool.
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Old Sep 3, 2002 | 07:58 PM
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Default Re: How do you clear codes? (champs_97)

Same result either way. EXCEPT disconnecting the battery also resets all the presets on your radio. :eek:
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Old Sep 3, 2002 | 08:00 PM
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Default Re: How do you clear codes? (jefft84)

Autozone will clear it for FREE
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Old Sep 3, 2002 | 08:13 PM
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Default Re: How do you clear codes? (robtx)

Just pull the ecm fuse that way you are not clearing radio and everything else.
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