Wheel speed sensors, or your ABS Sensor on rear axle housing if so equipped
Bring to a shop that has an ABS scanner to determine the problem
how do you check the abs sensor on a 1998 contour
A 2004 Ford Expedition would have four wheel ABS brakes
Could be a fuse , a sensor , or some other problem
Bring it to a shop that has an ABS scanner. They may tell you that the computer in the car is shot. That's what happened in my 1997 expedition and it will cost about 1600 to fix it. Note: until you get it fixed, it won't pass inspection.
Follow lines from master cylinder through ABS control to each individual wheel cylinder
light sensor
If your ABS light is staying on , a malfunction has been detected with the ABS system It could be a fuse , or a sensor , or something else . Now that the ABS light is on , the Expedition can be scanned for any trouble codes to help diagnose the problem
On a 2000 Ford Expedition the ABS Relay problem is a problem with the braking system. Either the ABS Relay needs to be replaced or the brake pads are worn down. The ABS Relay is located in the fuse box that is on top of the battery in the engine compartment.
speed regulator sensor needs replacement
Might be part of the wheel bearing.