Does an ECU need to be programmed for '04 intrepid? How do you program ECU? on 2004 Dodge Intrepid

I purchased a used ECU for a 2004 dodge intrepid. Does the ECU require programming for VIN? What happens if ECU is installed without programming VIN? Where can I get ECU programmed if needed?

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1 answer
car will not start. yes it needs reflashing. dealer or mobile computor guy in your area.google it and see what you find.your vin # needs to be programmed into ecm.