When you say roller do you mean motor? If so let's see if the switch is getting power, here is a guide to help and the window wiring diagrams so you can see how the system works and a guide to help check it.
https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester
With the key on test the yellow wire at the switch for power. Check out the images (below). Please let us know what happens.
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Thursday, September 26th, 2024 AT 1:01 PM