Question about 1999 Cadillac DeVille
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Posted on Jan 02, 2017
I have had the same problem and I have come to the conclusion it is the security system. After 3 minutes the car will start so there is nothing wrong with the battery or starter. I have had it to the dealer a few times and they cannot solve it. It may be the locks on the doors and they may not be resetting properly. I have learned to live with it.
Posted on Oct 14, 2009
I've got a 97 deville d'elegance that has issues similar to these. Last year the red anti-theft light came on and the car wouldn't start-took it to the dealership and they replaced the PCM? (the main brain for the system) for $900...the guy told us the wiring was so corroded he didn't want to mess with it much. Today the message started flashing on the dash that says "anti-theft problem/ car may not restart" but it still turned over in the driveway a couple times so I am hoping I can reset it. The wiring system is jacked and will probably need to replace the wiring harness completely. Doubt its worth it. Not a secure feeling with 2 babies in the back seat in the middle of winter....
Posted on Feb 18, 2010
Had the same problem, a service guy at the dealer soldered a fuse between the ignition wires. Never had a problem again. The problem is the keys, they have a resistor on the key, if the ignition doesnt detect the right resistance it will not unlock the security system. The fuse allows the system to always read resistance in the ignition system. Seriously I could not make something that silly up, but the fuse worked. 5 years not a problem
Posted on Apr 10, 2010
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