Thanks cr08 for the info, I knew someone out knew more than I did about the voltage #s. My suggestion of a bad 12v battery is based on my experience with one. First SSN message stopped at light, second, driving at 55mph, third. driving at 30mph. Ford dealer service center was never able to get the problem to reoccur & had no codes to tell them what to check. They spent 10 weeks total "looking" for the cause. The last week was waiting for their transmission tech, thinking that was the cause. He or somebody finally checked the 12v battery & found it was bad. I believe they did not think it was the problem because it was "only" a year old from when they sold & installed it. I believe the battery had been sitting in their stock for years prior to install but I'm not a "Ford certified tech". Hope this helps & thanks for the read.