Windstar V6-232 3.8L (1995)
Hydraulic Control Assembly - Antilock Brakes: Description and Operation
OPERATION
During normal braking, fluid from the brake master cylinder enters the hydraulic control unit through two inlet ports located on the bottom of the
hydraulic control unit. The fluid then passes through four normally open isolation valves, one to each of the four wheels. If the antilock brake
control module senses that a wheel is about to lock, the antilock brake control module pulses the appropriate isolation valve which closes that
valve. This prevents any more fluid from entering the affected brake. The antilock brake control module then looks at that wheel again. If it is still
decelerating, the antilock brake control module pulses the normally closed dump valve which decreases the pressure trapped in the line.
CONSTRUCTION
The hydraulic control unit consists of a valve body assembly, pump and a motor assembly.
NOTE: The valve body, the pump and the motor are not serviceable separately. The hydraulic control unit and electronic control unit are
serviceable separately.