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How to troubleshoot the PCM on 2003 Honda Accord

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  • Cars & Trucks Master
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Not much you can do about that. Only a well equipped shop with a lot of expensive equipment can really do extensive troubleshooting of the pcm, and often the final test is trying a new unit to see if problem is resolved.
What you as the owner can do is check that pcm is powered with key on-does the check engine light come on? And you can disconnect the negative battery cable, then pull off the connectors to the pcm, for checking that all connector pins are straight (not bent), and no corrosion is evident. And finally, you can have a scan test done for free at a national parts store. Scan test will verify communication links are good and working, and will show if any trouble codes are present.

Posted on Jul 30, 2013

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Posted on Jan 02, 2017

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jeffk14
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SOURCE: 2000 Honda Accord PCM location

If you pull down the carpet on the passenger front floor area, it's in the center "hump" area behind the radin console mounted to the floor.

Posted on Nov 22, 2008

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SOURCE: 2003 honda accord steering collum

No, I don't think they started lighting them in the Accord until around 2005. I had a 2004 and always had to feel around for them in the dark. If I remember correctly, they had some ridges or bumps on them to help identify them by feel.

Posted on Jan 27, 2009

  • 1 Answer

SOURCE: need radio code 2003 honda accord serial no. 12133932

Call your parts department at your local Hoda dealer and give them the serial number. It's usually a four digit number.

Posted on May 11, 2009

mecanica03
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SOURCE: my 2003 honda accord will not excedd 3000 rpms

1st check air filter and fuel filter for dirty, this cause loose power

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SOURCE: Front stabilizer mountings for Honda Accord 2003-2004

go to www.hondaautomotiveparts.com they have pics, parts and great prices

Posted on Aug 21, 2009

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