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While working on my car today, I found what seems to be an aftermarket switch near my OBD input by the drivers footwell. I switched it on while the car was turned on but nothing happened. Is there a way to figure out what it does/or was meant for? It's on a 2008 Base.
Back in the older days I had a switch like that that turned off the brake lights. Just keep looking or pull the plastic panel down and trace the wires.