As this is a very common problem, have you crossed off the following:
1) ABS Module: symptom vary, but more common are abs light to go on, trans-fail safety mode, speedometer, cruise-control, not working ect, (google is your friend on this topic)
3) How did you diagnose the front speed sensor? symptom? there was a forum member/article that was able to diagnose the corrupt one via a digital multimeter.
Would love if you could keep us posted,
I've had my abs module rebuilt, since I was experiencing the trans-fail safety code and all abs lights., The problem was fixed, but I still have the abs lights on. I also had a blown fuse, tried to replace it but continues to blow., not sure what the problem is., hopefully its just one of the sensors, but right now driving without abs isn't an issue for me.,