P1787; 2-1 Downshift Error

So I live in Indianapolis, and it has been pretty cold here, averaging -2 to 10 degrees. I bought my car in Arizona a year ago this month when I was living out there. Now that it is so cold, my car sometimes doesnt want to go into gear. Once it gets fully warmed up and after driving it for a few minutes, the problem goes away. Its real sluggish about shifting up and down. Now my check engine light comes on and the codes I got were P0700 and P1787. The weird thing is, my speedo works fine. Nothing else seems wrong with the car. I just checked the tranny fluid a few days ago and it was a bit low and topped it off. No help at all. Anyone have an idea of what could be wrong here? I just replaces the PCM under the emissions warranty on the car by the dealership. I dont think that would have anything to do with it though. Any and all suggestions greatly appreciated.

Thanks,
CJ

ok so im assuming a, either noone knows anything about a Stratus, or b, these forums are dead... otherwise i would definately appreciate an idea or a possible cause and solution to my situation...

Thanks

possible a bad solenoid pack, the dealer would need to connect it to the trans simulator with the drb and checked. possible tcm, solenoid pack, wire, internal trans

Given all the dust in AZ, you may have a clogged filter. Just have them perform a routine service and they'll look at all that.