brake problem on 1998 Toyota Camry

Coming to a slow stop brake pedal pumps once as if the anti lock brakes are trying to engaging. Any help would be appreciated

Asked by for the 1998 Toyota Camry
have you had any work done lately?
2 more answers
that what it sounds like. have the codes pulled on the abs side and get back to us.

Possibly a wheel speed sensor problem rather it be rust build up betweeen sensor and reluctor ring or bad sensor.