Atx PZEV FTW!
I may be wrong, but I think Federal law requires all Impact Sensors and wiring related to sensors be yellow so its easy to find. Its probably best not to mess with it, specially if its one of the yaw sensors. If you connect the wire or wrong wire it might ground the circuit and blow the bags. Probably best to take to a dealership honestly... Perhaps someone else with more knowledge can chime in...