Problems with anti-theft systems using the raised-chip key can prevent the car from starting. The wires in the steering column to the ignition lock cylinder tend to break. The key and ignition lock cylinder should be replaced to correct this condition.Google+
Car Problem Reports
Cadillac Fleetwood Car Won't Start Because of Anti-Theft System That Uses Raised-Chip Key
Cadillac Fleetwood Problem
Average Mileage: 176,333 mi (85,000 mi - 285,000 mi)
Visitor, 1993 Cadillac Fleetwood, 85,000 mi
Same issue. Car wont start. Friend that looked at it says its same issue described here...
my light stays on but the car will start and run.
Visitor, 1994 Cadillac Fleetwood
Pass key fault light on . Car will not start . Tried disconnect battery and bye pass steering colum wit ignition switch.
Pass Key fault. Can't find any anti theft device to replace for my 93 fleetwood. Engine in excellent condition so is inside. Outside minor things.