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Hello my name is***** am an ASE Master Technician and I am glad to help you out with your question.
The next step is to check voltage at the motor while pressing the switch.
A common problem is for wires to break in the rubber boot in the door jam, pull back the boot and check for broken wires carefully. I have seen this before and I am able to repair the wires and get the window working again.
You are going to need a volt meter to diagnose this if you cannot find any broken wires in the jam.
There is a passengers multiplex control unit.
I can send you the wiring diagram if you would like.