So, just shooting it out to the wind for some ideas. I've got a friend with an '02 Neon (automatic) that has an issue. You can drive it when it has cooled down but when it warms up the car decelerates (jerks) down to first gear and will not shift anymore from that point on. I pulled two codes:
P0700 Transaxle control system fault
P0755 2/4 solenoid circuit fault
I checked the connections first as that was easy to get to on this car and everything was connected. Any possible direction on what to do next? I've already told her to get a new car...
Just realized being hungy and having cold hands I jacked the thread title up..