All type of japanese and american foreign used suv's and sedan's vehicles abs control modules and master cylinders with the servo is available on:-
honda
acura
toyota
lexus
nissan
infiniti
hyundai
kia
mitsubishi... E.T.C
functions of abs and master
1. Abs control module is a microprocessor that runs diagnostic checks of a vehicle’s antilock braking system and processes information from wheel-speed sensors and the hydraulic brake system to determine when to release braking pressure at a wheel that’s about to lock up and start skidding.
2ndly. The brake master cylinder is one of the most important components found on modern car braking systems. It serves as the main valve that pushes brake fluid through the brake lines so that the brake calipers can squeeze the pads against the rotors. It functions by pushing a metal rod through a cylinder to force fluid through the braking system to the wheels. One end of this rod is attached to the pedal and is actuated when the pedal is depressed.