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Ignition Key resistance

Old 02-01-2019, 02:59 PM
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Ignition Key resistance

I have a 1989 Formula 350. It came with only one key. How do I find out what the resistance is of the chip in the key so I can have a spare made? Any information is greatly appreciated. I am new to this VATS thing.

Last edited by Fbodyman7389; 02-01-2019 at 03:10 PM.
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Old 02-01-2019, 06:41 PM
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Re: Ignition Key resistance

Measure the resistance with a volt ohm meter.
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Old 02-02-2019, 11:31 AM
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Re: Ignition Key resistance

Or you can go to a GM dealer and they have a machine which reads the key and shows which number of key it it.
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Old 02-03-2019, 12:15 AM
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Re: Ignition Key resistance

Thanks for the information. It was very helpful.
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