It's unreal how much underneath rust and corrosion you see on late model Fords in particular. On that same Fusion it pulled an ABS failure code on the RR. What happened was that so much scale built up under the pickup where it mounts that it cocked the pickup at an angle and it wasn't tracking on the reluctor thingy. I chipped the crap off and got it to sit flat and it was fine after that. This car wasn't ten years old.