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Old 14 Feb 2013, 10:32 am
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Default 2005 Honda civic automatic w/ everything stock. speedometer reads 45 when stopped and 90 when...

...going 45. HELP!? I have an automatic 2005 Honda civic. the speedometer one day decides that 0 mph is 45 and when I am actually going 45 mph it reads 90mph. everything on this car is stock. what could be the issue and how much does it generally cost to fix it?
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Old 14 Feb 2013, 10:46 am
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Something is wrong with the connection between the speedometer and the transmission, the point to which speedometers are usually connected.































While I cannot answer how repair would cost, I'd take it to either a trusted mechanic or a Honda dealer to have it diagnosed and repaired. Be forewarned, though, that given the age of the car, it's no longer under warranty.
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Old 14 Feb 2013, 11:02 am
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You need a new VSS(Vehicle speed sensor)
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Old 14 Feb 2013, 11:16 am
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I would start with the easy way first..The cable that connects to your transmission may be the culprit.















But in other cases that are close to your problem was the on board computer.































At times this computer gets out of sync monitoring many functions . Try this, place your key in the ignition and turn forward until your indicator dash lights are seen then stop . Do not bump the starter or you will alter the re-set function.































You now should have the hood in the open position and a wrench to loosen the positive side of the cable on the battery. Remove the cable upward making sure you do not re touch the cable to any surface. When you remove the cable you may see a spark or two this is a normal and will not cause you harm or your computer. If you are doing this alone wrap the connector with a cloth being sure it does not make contact with any metal object , then return the key to the off position and remove.































Now go back and replace the positive cable and tighten it snug. Check your problem to see if the speedometer needle has dropped down to its correct position as it should have . If not, you have reset your OBC and no harm done...you may have to start the engine or drive it a block or so. I hope this information has corrected your problem.
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