Guest aricrickard Posted May 19, 2012 Share Posted May 19, 2012 Is there any way to find out which resistor code my Reatta ignition key needs? I lost my key but I have a dumb key. So if I could find out what resistor code I need, it would be easy to make a replacement key. I was oping that there is somewhere in the car that I could measure the resistance needed.ThanksRick Link to comment Share on other sites More sharing options...
Ronnie Posted May 19, 2012 Share Posted May 19, 2012 Hi Rick,Welcome to the forum! The only way I know of to find the key you need is to use the instructions on my website for bypassing the VAT system. You would need to try each of the 15 possible resistors until you find the one that would allow your car to start. Once you found the correct resistance for your car you could either bypass the VAT system as described in the instructions, or put everything back together and have a new key made with the correct resistance.How To Bypass The VATS/Passkey System*-*ReattaOwner.com Link to comment Share on other sites More sharing options...
handmedownreatta Posted May 20, 2012 Share Posted May 20, 2012 its worth a shot to call the buick dealer to see if they can look it up using your vin.also a varable resister may be an alternative to seperate resisters for testing. Link to comment Share on other sites More sharing options...
padgett Posted May 20, 2012 Share Posted May 20, 2012 Moral: if you have a passkey, record the value of the resistor in a safe place. Link to comment Share on other sites More sharing options...
handmedownreatta Posted May 20, 2012 Share Posted May 20, 2012 Moral: if you have a passkey, record the value of the resistor in a safe place.[/quotei had a hardware store make me another key and copied the code at the time. Link to comment Share on other sites More sharing options...
exwisehe Posted May 14, 2013 Share Posted May 14, 2013 Another way, obviously,would be to go to a locksmith. If you elect to do it on your own you would probably need to know the 15 resistor values first. A variable resistor might not prove accurate. Another thing to consider, as i recall, is that after using an incorrect value, you would have a four minute delay until a correct value would work. (this is from my locksmithing days back in the 1980s.) Link to comment Share on other sites More sharing options...
Jim Posted May 14, 2013 Share Posted May 14, 2013 Here are the resistor values1 4022 5233 6814 8875 11306 14707 18708 23709 301010 374011 475012 604013 750014 953015 11800I have a new uncut # 9 3010 I would give to anyone who needs/wants it.If you do try each resistor there is a five minute wait time between failed tries. Link to comment Share on other sites More sharing options...
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