1998 Dodge Caravan • 6 cylinder AWD Automatic • 180,000 miles

I have a 1998 Dodge Caravan. The auto transmission started not shifting past 2nd gear, only 1st, 2nd, and reverse and now it wont move at all. I was told it was some kind of computer part but cant remember now what that part is called. Do you know what is wrong and since it wont move at all now could the whole transmission be out or could it still just be the computer part? My email address is sl_stanton@live. Com
February 16, 2011.

It could be the trans control module (TCM).