Question about Ford Cars & Trucks
There could be many issues with this light on, only a professional scan tool or the FORD dealer has an OBD scanner that can talk to the ABS module. From a look at some common problems, people have changed the front wheel speed sensors to fix this problem.
Posted on Jan 16, 2013
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Posted on Jan 02, 2017
I just had the same exact problem. The ABS light was on constanly, and the 4x4 high light flashes about 8 times, turns off for about 2-5 minutes, then flashes again for another 8 times and keeps repeating. In addition, I was also hearing and feeling a grinding and clunking noise going in reverse, and the steering wheel was difficult to turn. I changed a bad hub assembly on the front driver side and everything went away...fixed! I wouldn't let anybody tell me that the ABS system and the 4x4 system are not linked together. In fact, my local Ford service department assured me that I had two separate issues. Well, I only had one issue and it was a bad ABS sensor. I hope my exprience helps you.
Posted on Oct 27, 2010
the rear one is a single sensor and is located in the top of the rear differential , unplug it and take the retaining bolt out and it pops straight up out of the differential. the front has 1 for each wheel,and is located on the backside of the wheel hub. take the tire off and look on back side of hub it should be the only sensor thare and is anchored with one bolt then just fallow the wire to its disconnect point. this vehicle is known to have problems with the rear sensor so i would replace it first and see if this fixes the problem
Posted on Feb 02, 2009
The bearings on the wheels has to be installed one way only, the rotor ring is built into the bearing and if installed the wrong way round the sensor cant pick up the wheel speed causing the ligt to be switched on in the cluster. The diagnostic equipment should pick this up as a fault once the car has been driven, it will see the sensor when you do the diagnostic if the car is standing still but once the car is moving and no signal is send from that wheel it would register a fault into the memory of the PCM that you would be able to retrieve later.
There is a way for you to test the sensor yourself by using a multimeter set on volts, you jack the vehicle up at that wheel, install a vehicle stand to support the vehicle to be safe, disconect the wheel speed sensor and probe the two wires into the sensor, spin the wheel by hand and a small amount of current will be produced meaning the the sensor is working and the wheel bearing is installed the correct way, you can also do a continuaty test on the sensor by switching the multimeter onto ohms, but be very carefull, if this sensor has three wires you cant do the continuaty test because of the integrated circuit in the sensor, the three wire sensors opperate on a voltage from 5Volt and it would be destroyed by the multimeter opperating on 9Volt.
If the continuaty test passes and the bearing is installed the correct way, the most comon fault would be a break in the wiring leading to the PCM
Hope this will be helpfull.
Posted on May 04, 2009
The ABS light is for the Anti-lock Braking System. The MIL will illuminate if there is a difference in wheel speed sensors signals to the PCM. So you might have a wheel speed sensor that is going out on you. Does the light come on at low speeds, or just higway speeds? You could take the vehicle to a local parts store and have them pull the codes for you and that will tell you which speed sensor is out of whack. Also road grime, dirt and gunk buildup can cause speed sensors to give false readings. Hope tihs helps you out.......
Posted on Oct 22, 2009
when the ABS light stays on it means there is a fault present in the ABS system and the ABS has been disabled, as long as the light is on u just have regular brakes with no ABS, there are many thinbgs that can turn the light on, most common is one of the wheel speed sensors is defective, since these sensors are about $75-100 each and there are 4 of them guessing is a poor idea, so what u need to do is have the ABS systwem tested, there will be a fault code present to help narrow down the defective part or wiring.
Posted on Dec 28, 2009
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