Speedometer, ABS, and Traction light help!!!

[Reecard]

I just had the ABS unit rebuilt, because I was told that was the problem with my vehicle. Like the title says speedometer doesn't work, ABS light is on and the traction control light is on. I have a 2001 E53 4.4i.

I was all excited, received my rebuilt unit on Thursday and installed it. Followed the directions on the install. Well, that did nothing, still everything misfunctioning. I called the place that rebuilt the unit and they told me that not all X5's are plug and play with this unit. I may have to have the vehicle hooked up to a computer to have it relearn the unit is functioning, OK I said.

Friday afternoon I drove the SAV and I looked down and the speedo was working and all the lights were off!! I was elated!!! Thought to myself maybe it learned on its own. Let the thing sit in the driveway for 5 minutes then left to go to dinner. Nothing again, what gives??? Does this sound like a sensor that is going bad, maybe a wheel speed sensor? I am confused and need some advise.

Sorry for the long story, but can anybody give me anymore ideas on what could be wrong??? Please help me.

Thanks,
Todder