Mazda CX-9 Drivers Side Front Power Window Motor. Is your Mazda CX-9 drivers side window not working. Check to make sure the window regulator also. You might need both the regulator and motor at the same time. You cannot buy as a complete unit. You will need to purchase both the window regulator and power window motor. We have found that both are now going bad to the years of going up and down. These are Mazda genuine parts.