How do I know if my drivers side power window is grounded properl

Hi there,
Try replacing the button that you push up and down. It could be bad under it and not making the connection. Maybe take the panel off and take the switch off, then clean the connecters under the button. Maybe that will do it. Also, you probably already ckeched this, but is the window off track? Well, good luck and let me know. Have a great night.~MWD