Hi:

Engine won't start. Took car to dealer. Dealer couldn't diagnose. They consulted with Chrysler and was told to replace engine control unit and "screen" unit. Supposedly, the "screen" unit works with the theft deterrent system and is connected to the engine control unit. Somehow, something failed and the car won't start because the car thinks I am not using the correct key.

Anyone else heard of this issue? The service guy told me this is the recommendation they got from Chrysler because Chrysler has seen this problem in some Crossfires.