The power to the license plate lights is provided via the body control module and not directly from a fuse.
I attached the schematic showing the lights. With the headlamps or parking lamps on, check the green wire with a yellow tracer for power.
If it does have power, then check the black wire for continuity to ground.
Here is a link you may find helpful:
Let me know what you find.
See pic below.
Saturday, February 18th, 2023 AT 9:24 PM