What is wrong with my durango?

I'm sorry but what does ISC stand for?

Sounds like a classic battery going bad, have your battery load tested, clean the connectors and check if the alternator is giving out over 14 volt´s like it is supposed to. our truck´s are very demanding on the battery and if it is starting to go bad this is the sign.

This is going to sound odd and may not be related at all. Ok so mine does same thing at some traffic lights. I started jotting down notes when it stalled (where, time, traffic light, highway, turning etc). I began to see patterns....traffic lights,...stalls at same lights frequently....rarely if ever has it stalled if i wasnt first in line at the light. The seemingly random cutting off while moving also seems to occur in or near same place...it also had random occurences with no repeat. So my possibly retarded conclusion it some type of signal interference that temp disrupts the transponder/chip key signal causing vehicle to die. Im guessing traffic lights use some sort of signal thats in the pavement and happens more at newer lights. Theres one 90 degree bend i go around often and the vehicle loves to cut out in the middle of the curve leaving no power steering. However, if i go thru this curve fast and break late in the turn it never stalls. So is there some kind of signal coming from one of the houses right there? As i said i may have taken a series of coincidental data and come to a conclusion that has no merit or couldnt possibly be. Pay attention to where its stalling...and if youre not first at the traffic signal is it still stalling

gltaylor, check your battery.