I just picked up a 2000 F-150 4X4 with 90k miles as my winter car. I have a 02 supercharged stang convert for my toy. Anyways the ABS light was on when I got the truck. After lurking around here for a bit I found the rear abs sensor to be an open circuit. I picked up a new sensor and replaced. Well the light turned off, but turned back on as soon as I put the truck into gear. I checked the two front sensors, just slightly over 400 ohms - good. Started looking at some wiring, even though they looked okay to the eye, I pulled at and found the wires from the abs module to the motor were all corroded at the motor end near the ceramic coated connectors. I cut the wires back, soldered the wires to the motor, covered with heat shrink, and then taped up the wires. Put the motor plug back in and turned the key. No more ABS light all is good. Just wanted to post in case this may help someone else out, as this was not something that was easy to find. I'm sure if I had the codes pulled, it would have shown a bad motor, with a costly replacement.

 

Anyone else had this problem.

 

Hey, I might have the same problem. My light came on after I hosed out the engine compartment. But, I don't understand where you patched the wiring. What do you mean by motor? If you could post a picture it would be helpful. Thanks

 

If you follow the brake lines they go to the ABS system. Under the electronics is a motor. The electronics is mounted on top of the motor. The wires from the electronics to the motor were bad on mine. I will try to post pics later.

 

Thanks, 02. I found the wires you are talking about, but they look like they are in good shape. I am curious how you got at them? Mine are surrounded on all sides I can only see them through a small slot. Did you take apart the ABS controller and if so did you have to bleed the system? Thanks again.

 

I'm having a similar problem, my ABS light just came on at the start of a 3000 mile trip and didn’t go out. I have tested the rear sensor and I also get an open circuit. Should this sensor be open at a certain point or do I have a bad sensor???

 

i have the same random problem. sometimes i turn on my truck and the ABS light doesnt turn off. so i turn the key forward again to reset it and the light turns off..most of the time. and im not really sure why it is doing this maybe im having the same problem