It means that you have a message.
no there is no code
Turbo/Super charger boost solenoid circuitA open
It is the short runner Valve actuator part#57-154. Replace it and the code is fixed
Trouble code P0128 means:Coolant thermostat (coolant temp below thermostat regulating temp)
The computer has detected a malfunction with the electronic throttle system and set a code.
Bank 1 (pass side on this car) catalytic converter efficiency failure.
It means that the engine computer has detected a malfunction and set a trouble code.
The engine computer has detected a malfunction in the electronic throttle system. The computer will have stored a code.
The PCM (engine computer) has detected a fault in the electronic throttle system and set a trouble code.
It says NOx Exceedence - Deactivation of EGR.
The OBDII error code of P0299 is a generic for a low boost condition. This could mean a turbo charger and or air induction system problems.
Taking it to your local dodge or chrysler dealership is you best bet. Radios are not meant be easily decoded, as a anti-theft device. Make sure you have all of the paper work proving you are the owner of the vehicle with you.