I have a '94 Fleetwood Limousine. The Passkey Fault light remains on. The problem is not in the steering column. I have checked the system using my VATS Interrogator tool. But here's where it gets interesting. The engine will start and run with the Interrogator selector dial in any of the 15 positions which simulates all 15 resistor block possibilities. The engine will also start and run with the VATS electrical connector unplugged at the base of the steering column. However the Passkey Fault light remains on. Once in a while the engine will crank, then run for a few seconds, then stall. When this happens the ignition must be put in the lock position. The Passkey Fault light will remain on for exactly 3 minutes with the ignition in the lock position. When the Passkey Fault light goes off the engine will start and run again. Does anyone have any experience with this type of problem? I'm thinking it's either in the wiring or the CCM in the trunk. Which is the most likely suspect? I should also note that unplugging the CCM in the trunk causes the Passkey Fault light to go out. So I don't think it's the light circuit being shorted to ground. Any help will be greatly appreciated!! Thank you very much!!