I got a 2011 5.0 mustang, in a accident the computer was damaged and i needed a new one, i had technician to program the new computer and when he try to program the keys the code p1602 came up, if anybody have any idea on how to fix it or where should i start looking for the problem, i will appreciate, thanks!!

 

Ford: Immobilizer module-(PCM) communication fault

thats what the code means. any other codes?

 

do you know where is located?? or how to check if its damaged

 

im guessing somehow the new PCM just needs to be mated to the car. maybe there's a special procedure you have to do? Im not really sure. So as of right now the car wont start due to not recognizing the key right?

 

yes, they mated the computer to the car but when the try to start the car it did'nt start, when they scaned the car it came on the p1602 code.

 

had the same error in my car. My car is acting funny too and it is brand new