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just to cover the overall issues sounds like your on board computer got a massive hit from pothole and the diagnostics computer might be reading false truths, wires might of got disconnected in the process. I had something similar once and it was time for me to get new connections on the wires cause every bump wire lost connection i got check engine and service engine lights.
well typically that leads to your brake pads are down to the metal plate or near it, and/or it needs a check something could of put it out of alignment. it depends were are you hearing it from front or back? left or right?