It's possible that the switch is bad. It should be easy to disconnect the wires from the switch and check it for a short with an ohm meter.
If the lights are in the extended part of the awning, I think it would more likely be a short in the wiring. A wire could have gotten pinched in the arm of the awning. You can also easily check for a short in the wiring with an ohm meter after disconnecting the wires.
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2013 Silverado 2500HD LTZ CC 6.6L Duramax Diesel 62 gal fuel tank
2023 Rockwood 2445WS
2024: 6 trips, 43 nights in 12 states, 7591 miles
2023: 9 trips, 48 nights in 12 states, 2 provinces, 8120 miles
2019: 7 trips, 43 nights in 6 states, 3904 miles
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