|Disclaimer: Keybits Lock & Key
or carlocksandkeys.com or anyone associated with the above companies are not
responsible for educating the reader of this page on proper use of an
ohm meter. This information is for educational purposes only, and Keybits
Lock & Key or carlocksandkeys.com are not responsible for how this
information is used. If you send us the wrong vats code, than your new key will not
work in your car, and that is entirely your fault. With that said, I hope
you find this information helpful.
How to decode a VATS key.
VATS stands for Vehicle Anti-theft System and is also known as PASS-Key (Personal Automotive Security System). Each VATS key has a resistor embedded within the key-blade, and each resistor has 1 of 15 possible values. Sometimes the resistors are refered to as a Vats Pellet or Vats Chip. Decoding a VATS key is very simple, but it requires that you know how to use an ohm meter. Any multimeter will have an ohm meter and any Radio Shack, Electronic or Hardware Store can sell you one.
All VATS keys have a resistor embedded in the key blade with metal prongs protruding out of each side of the key blade. In order to read the resistance of the resistor in the key blade, place one lead of the ohm meter on one metal prong, and the other lead on the other metal prong, opposite, on the other side of the key blade. With the leads in there proper position a resistance value can be read from the ohm meter.
Once you get your reading, match the resistance value given by your ohm meter to the resistance value, in the right column, in the chart below. The value from your ohm meter will probably not match, exactly, the resistance value in the chart below, but choose the value closest to the value on your ohm meter. The corresponding code number is the identification number of your VATS key.
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