OK I got the know how to reset the motor. If your window wind down when you auto wind it up, or wind down when you close the door. Here is what my Uncle told me to do. He is a mechanic in Nissan Service Centre in Ipswich Motorway. After you take the motor with the gearbox out from the door frame. Plug the electrical back and turn ignition on. Start winding up or down the window using the switch, looking at the rotating shaft, count 8 numbers of turns. That will reset the motor and the limit switch.