Long story short.. a while back my indy replaced ma spent rear wheel bearing with good used ones (complete with rear axle support assembly), but from a car that never had ABS system. Ever since then I noticed the ABS Light comes on after hitting the road. Lately I replaced the same complete assembly with one that has ABS , problem the ABS light won't go off.

Please help me!! I am thinking the ABS relay is the problem, but can't even find it So far I have changed the ABS control Unit. Any Ideas