Welcome to 2CarPros.
As far as the window motor, the direction is turns is based on polarity (which wire gets power on the motor). If it works in one direction, usually it will work going the other way. Not always, but more often than not, it is a bad connection at the motor or the switch has failed.
If it has already been fixed, let me know. If it hasn't, there are two wires on the window motor. One gets power when up is selected, and the other gets power when down is selected. Confirm if you have power to both.
Here are a few links you may find helpful:
https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester
https://www.2carpros.com/articles/how-to-use-a-voltmeter
https://www.2carpros.com/articles/how-to-check-wiring
Let me know what you find.
Take care,
Joe
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Monday, September 16th, 2019 AT 7:39 PM