ABS related problem

[Eggert]

Hello guys,

I've done a bit of research and didn't find much. Hence this thread:

My 2001 4.4i has an error, it says rear left abs sensor is faulty. However, when reading status in INPA, I get a slower and more irregular pulse from the wheel, causing the ABS error to appear and disappear every few minutes of driving. The "BRAKE" light goes from red to yellow and back all the time, so I'm having hard time believing it to be the wheel speed sensor itself.

This started happning soon after I had both rear wheel bearings replaced. I noticed this after 100-200 miles of highway driving the following day.


So, I was wondering, is there any way to tell if the bearing itself is faulty? It is supposed to be from a reputable manufacturer, can't remember the name though.

What is the next step in diagnosing this fault? Any input appreciated.