I was getting off the highway and made a left turn. As I was accelerating the motor gentle cut off.. (You wouldnt even notice if you wasnt driving) Full Traffic was behind me, so luckily I was able to get out of the way and pull to shoulder. It was the day before Christmas and car hasn’t ran since. Upon investigation I found the CEM was effected. When the car died I was in left hand lane and I had to make my way to right, the shoulder. Yes the problem was diagnosed by myself. However I did investigation and researched using all data at library. It has not been inspected by anyone else. There where no warning lamps or messages prior to the failure. It happened all of a sudden in the middle of traffic when I was getting off the highway.