Old thread but thanks, I fix it today... Just hope it will stay ok!!
I cleaned up the circuit with a pencil rubber and remove the dust with WD40 and paper like paper-roll (in the kitchen), until you have no black on it.
after that, I tried the car it was running better and smoother, before it use to pass up to get the OD quicker as possible.
Sometimes, she was stay in neutral. (my wife told me, never did with me)
But still the flash message "overheat transmission".
Took the WD again and put a splash in the bezel connector, and the message disapear.
Thanks to all!!