What you seem to be experiencing is Chrysler's Vehicle Theft Security System (VTSS). It activates to disable the fuel injectors whenever an alarm condition is triggered. If everything is working properly, it is very easy to disable the VTSS. All you need to do is unlock your car with the key fob [if you have Remote Keyless Entry (RKE)], or unlock the driver's side door with your key, from the outside. (Placing the key in the ignition switch and/or attemtping to start the car will not reset VTSS.) If these procedures do not reset the built-in alarm, then you have more serious wiring or component problems.