I just replaced my bearing hub and this lockwasher this past weekend on my 2015 Ecoboost. Drove on highway no problem. This action fixed the no ABS, cruise, Hill assist, and traction control.
Three weeks of unsat driving. I had problems with my 2015 Echoboost that I had no ABS, Trac Contrl, cruise, Driver hill assist etc.. All lights on... Tried my scanner..no help. Took to my local mech, he scanned and identified left rear sensor reading bogus 100mph. He offered to give car back to...