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Ford Explorer Community - Maintenance - Modifications - Performance Upgrades - Problem Solving - Off-Road - Street
Explorer Forum Covers the Explorer ST, Explorer Sport, Explorer Sport Trac, Lincoln Aviator, Mercury Mountaineer, Mazda Navajo, Ford Ranger, Mazda Pickups, and the Ford Aerostar
My light was going on and off for a while and then stayed on. It ended up being caused by a leaky brake line on one of the rear drums and the drums were at about 2% life. After a new set of Drums, pads and brake lines It hasn't come on since.
Start with the rear sensor. It is the most common culprit. This sensor is mounted on top of the differential and is held there by one bolt. Use an ohm meter to check the resistance between the two sensor pins. If its open, you found your problem. Replacement sensor is about $23 for OEM or $12 for an aftermarket sensor (Kragen, Autozone, Pep Boys).
Dont bother scaning the codes just get out a multimeter and check for an open. If you find an open on any of the sensors they are bad... I started with the rear because it was the cheapest sensor. Problem fixed!