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the used pcm needs to be flashed or programmed to your vehicle. right now, it is programmed to the vehicle it came from. once that is done, then the key will have to be programmed to allow the seurity system to allow it to start.
why did you replace the pcm???
ok, you will need to find a shop that has the equipment to flash his and program your keys. hopefully, it will be successful and you will have no other check engine light.
I am not charging you for anything. we get a portion of your deposit when you accept our answer. it is the only way we get paid for our efforts.
there is no easy way to perform this procedure unless you have the equipment.
if you have the equipment then you can do this procedure yourself.
do you have a scan tool capable of flashing??? if you do then you will need a subscription to the ford web sight to access the info needed.
you need a tech 2. you will need to buy a subscription to ford web site. you will also need a translator for the info. that is a connector between the obd 2 connector and the scan tool. then you can download the program to your pcm. the instructions are easy to follow. just hope that it takes to the used pcm.