The driver side window has slowly gone out. I replaced the switch. Passenger side window operates fine using the new switch. Drivers side seems to try to engage and moves 1/8th of an inch. For a while it would go up and down sometimes. Now it is not working except it appears it is getting a power signal. My thought would be a failed window front motor but thought I would ask before replacing using this guide: https://www.youtube.com/watch?v=Q6vyEs4H...

But as autos are not my forte I thought I would ask first.

Or do I need the relay?