I recently replaced the trans in my 00 Cherokee with a used one from another 00 Cherokee. It runs and drives fine now however I have a P1899 code. My scan tool lists it as manufacturer control; transmission. I did a search and found one other person who had this code and they said it was for vehicle detected in park while in motion. Any insite on what this code means and what I can do to remedy it? Could it be a possible nss adjustment? The Jeep starts fine in both park and neutral