Jeff, you now have a PATS issue that is not allowing the PCM to start the motor..
Flash code 14 is the following.
Partial key code received, try again, or use your spare key. Allow about 2 to 3 minutes between trys for the PATS to reset.
If it does not work, it's dealer time.
You can also trigger the dash diagnostics and see a different code that will 'interpet' from a code chart, to be equal to the flash code.
A scanner used on the PCM would read a code that is different yet but tells the same thing. Only difference in all these is how and where they are read from. They all refer to the same fault.
The dash codes are called a HEC codes.
Stick with it.
Maybe the truck thinks your trying to kidnap it, hi hi.
Good luck.