SO THIS IS THE PROBLEM: CORROSION OF THOSE CONTACTS IN THAT HIDDEN CONNECTOR!!! CORROSION MEANS: NO ELECTRIC CONTACT = THE INFORMATION FROM THE SPEED SENSOR DOES NOT GET PASSED ON = ABS SYSTEM FAULT! How silly is it to have a connector there at all instead of having a cable going all the way thru. This is a design fault and a designed-in failure waiting to happen! After cleaning the corroded contact with contact cleaner, and a few minutes later forcing the surface contamination out with compress