Security Light on 1993 Buick LeSabre

My car will not start when the security light stays on. I have to wait for atleast 5 minutes, then the light goes out and then the car will start.

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2 answers
The fault with your security system is most likely due to a wiring problem in the steering column. There are two small wires the go to the ignition lock cylinder that allow the theft module to "read" the resistor in your ignition key. Right now the wire is probably partially broken and will make connection sometimes and sometimes not. The system should be properly diagnosed to confirm this problem. If indeed the problem is with the lock cylinder wiring the ignition lock cylinder will need to replace and a new ignition key made.
mt car will not start seccurity lite is on