Most likely the very fragile wires that read the "chip" in your key have broken. These wires are located just inside the key opening in your ignition tumbler and under go constant twisting. You can bypass the theft system and save alot of money. There are instructions on the internet. Google bypassing VATS on GM cars.
how to install a maf sensor on a cadillac deville concours?
How can I change the wiring and spark plugs on my 1996 Cadillac Sedan Deville Concours?
how do i reset theft problem for 96 caddilac deville concours
how do you change powersteering rack on 1994 cadillac deville concours
diagram for 94 Cadillac Seville starter
Yes, if they are both Concours (8th number in the VIN is "9"), otherwise no.
To replace the air ride compressor on a 1999 Cadillac DeVille Concours remove the air shocks located under each wheel and replace it.
Where is the tcc button on a 99 Cadillac concour
275 HP, CONCOURS HAS 300 HP
try from inside the trunk
no. the only diff between a concours and a devile is engine trans and mouldings the interiors are basically identical
What is the P39 code for a 1994 Cadillac with a northstar motor