2007 Ford Focus • 120,000 miles

Changed rear brake drum and bearing and removed ABS ring from old drum and placed on new drum. Now ABS light is on continually. I was told that the light should go off after turning the ignition switch on 50 to 75 times. It may have been 50 by now and the light still stays on. I touched no other parts related to ABS. What could be the cause?

Thank you.
August 26, 2013.

Since the light is on, have the computer scanned for trouble codes. That way you will know where the problem is coming from. You can also try disconnecting the battery for about 20 minutes to see if that shuts if off. However, I would start by scanning the computer to see where the cause is coming from, then I would check to see if something is disconnected, damaged, dirty.