Don’t forget the Fiesta senses power steering fluid pressure on the line near the rack, so the
ecu seeing pressure (or change in pressure state) may be the simple thing that is needed to make the
ecu run the pump correctly. Otherwise I could see an engineer logic of
“run pump”
“Is there pressure”
“If yes then idle pump until steering movement/pressure change”
“If no and we haven’t seen pressure in KOEO cycle then assume epic system fail, shutdown pump”