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Old 07-02-2009, 10:48 PM
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Location: Detroit, MI (USA)
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Default 05 Civic + P1456

I have an "05" Civic with a P1456 code. I have researched and know what the code is.

(1) Even though this thread is old would this list still be accurate for an "05"?

(2) Would this procedure work for an 05 if you don't have a scanner? What color wires would the 05 have?

(3) How do I reset the CEL in a 05 without pulling the negative cable if I don't have a scanner?
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Old 07-03-2009, 08:41 AM
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1997 Honda Civic
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Location: Houston, Texas
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The jumper wire method of retrieving CEL codes does not work for 01-05 Civics. You can clear CEL codes by removing the 15A ECU/ECM fuse #6 under the hood for a few minutes.

Regarding P1456, have you checked whether the gas cap is loose or the gas cap seal is broken?
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Old 07-03-2009, 02:42 PM
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Yep I checked the gas cap, it looks good. I also took it out today and listened for pressure in the tank. When I opened up the cap I could hear pressure coming from the tank.
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Old 07-03-2009, 02:42 PM

01, 0105, 05, 2000, 2001, 2005, cel, civic, codes, ecu, fuse, honda, jumper, p1456, underhood

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