I have a 2017 Jetta Se whose blind spot monitoring function stoppped working. It was involed in a minor accident in parking lot on the right rear corner. I do own a Vag-com but have limited experince with it. My understanding is the blind spot sensors in rear bumper. What scan would I do to diagnose. Could I replace right rear sensor I see them on ebay for 175, it would be worth a shot instead of taking to the dealer. Also if new sensor swapped is it just replace or do I need to code sensor to car.