I am working on a 2009 Jeep that has had a 6.2 from a 2011 siverado transplanted. I am needing a 4000 ppm VSS signal for a Dakota Digital cruise. It is my understanding that Pin 57 on connector X1 at the PCM can be configured to output a VSS signal but so far it no worky. What do I need to do to make this thing work??