2011 Jeep Patriot cruise control problems

I was excallerating from a stop at a red light that had just turned green when half way through the intersection my jeep stauled. The two vehicles behind me rear ended each other. I slowly rolled to my right . The etc (lighting bolt symbol) and engine light came on. I repeated the process of trying to start and drive a few feet at a time and remove battery terminals and clean them. The RPM would drop very fast and engine would cut out while in motion . This was on very busy rural streets.

While driving down our driveway to the main road the electronic stability indicator and the electronic throttle control lights came on. I turned the ignition off and back on then went to the bottom of the road to get on the freeway when the lights came back on and the car went to a limp mode. I had no throttle to get on the freeway and limped back home. Our mechanic could not get the scanner to duplicate the lights..