Hi,
I attached the power window wiring schematic below for you to see (pics 1 and 2). There really isn't anything I see there that should have caused this to happen. However, when I work backward, I do see the power relay you mentioned. Also, it is responsible for several different things including the windows.
Pic 3 is from the power distribution schematics showing the circuit breaker for the windows and the relay. Pic 4 shows the relay in question. It is located in the relay box under the dash on the driver's side. Check that relay.
Here is a link you may find helpful:
https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit
Let me know what you find.
Joe
See pics below.
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Wednesday, August 2nd, 2023 AT 8:24 PM