ABS debris?

When I first put in the ABS sensors, I didn't realize that they needed to be a certain distance between the sensors and the toner rings. When I took one out the end of it was chewed up on the bottom of the sensor because it was too close to the toner ring.
I didn't think about the debris or cleaning them out, but now I am seeing the ABS and Brake lights going on and off and there aren't any ABS codes. Could the debris from the end of the chewed up end of the sensor be causing the lights? I imagine that there are some magnificent debris.