Abs systems are very complex because they work in
unison with the vehicles braking system. All abs systems are computer
controlled with various sensors actuators pumps controllers and valves that all
make the system complete. If ever the abs light comes on while driving it’s
because the system has sensed malfunction. These systems require strict testing
of each component to ensure proper diagnoses some systems even incorporate the
brake master cylinder with the abs pump. These systems should only be diagnosed
and repaired by a competent trained professional only while most of today’s
systems require the use of an on board scanner for diagnosing and repairing.