Question about 2004 Acura 3.5RL

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LOST KEYS TRIED TO HAVE A NEW ONE MADE BUT CANT GET IT TO START 2004 ACCURA RL 3.5 ANY IDEAS??? DESPERATE!

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  • budulup Mar 12, 2009

    no not true you can flash the icu unit in the car and program a new key i am a locksmith and have done this succsessfuly many times this car has been done once before but it just wont turn over any help is apprecated!!!

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If you didn't have the key made at the dealer, then it will not start because the new key doesn't have a chip in it and is not sending the right codes to your computer. If you had the key made at the dealer then they programmed the wrong code in to your key or they need to re-program the key or they need to re-program the code in the computer to sync up with the code on the key.

Posted on Mar 12, 2009

  • ntruji11 Mar 12, 2009

    I agree but I wasn't thinking of going so far as to flash the whole computer. When you try to start it, does it just click or does it actually move the pistons?

  • ntruji11 Mar 13, 2009

    Alright spike26996 before you go throwing your weight around lets get something straight. You don't know my experience your attempt to flame me makes me question yours.
     I know which keys you are talking about and they are out dated. These keys have micro chips that communicate with the cars PCM via radio frequency.  I have busted used keys open and found little micro chips in them not just a piece of silicon attached to a piece of metal if you want and example that would be easy for you to find is to look at any newer key made by VW, Audi, Mercedes, Nissan, Toyota, Lexus, Acura,  etc. 


    Those keys with simple contact resistors evolved into keys with, yes, chips in them and those lasted for a short while until automakers got smart and realized that they don't even need they "key" part of they key.  I believe the early 2000's Corvettes were the first cars to utilize "chips" in the keys not just resistors. And that is why automakers can justify charging upwards of $300 for a key.

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  • 39 Answers

Your ignition will only recognise the original key because of its resistance. you need to order a new key from the manufacturer.

Posted on Mar 12, 2009

  • spike46996 Mar 12, 2009

    ntruji11 you're wrong. keys dont have 'chips" in them. they dont send any codes to your computer. your computer only registers the resistance of the key you put in the ignition. if your key's resistance is wrong the car will not start. you can do a relearn on the computer and get it to recognise the resistance of your new key but as far as a chip in the key thats gotta be the funniest thing i have ever heard. some keys do have a piece of silicon on the side of them that attach a piece of metal to the key to give it a higher resistance but it is not a chip like in a computer.

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