Concorde V6-2.7L VIN V (2001)
Teves Mark 20 ICU
DESCRIPTION
The Hydraulic Control Unit (HCU) is mounted to the CAB as part of the ICU. The ICU is located in front of the driver's side front tire, behind the
inner fender splash shield. The HCU controls the flow of brake fluid to the brakes using a series of valves and accumulators. A pump/motor is
mounted on the HCU to supply build pressure to the brakes during an ABS stop.
The HCU on a vehicle equipped with traction control has a valve block that is approximately one inch longer than a HCU on a vehicle that is equipped
with ABS only in order to incorporate the additional valves.
For more information, see INTEGRATED CONTROL UNIT.
BRAKE FLUID ACCUMULATORS
Teves Mark 20 ICU
There are two fluid accumulators in the HCU-one for the primary hydraulic circuit and one for the secondary hydraulic circuit. Each hydraulic circuit
uses a 5 cc accumulator.
The fluid accumulators temporarily store brake fluid that is removed from the wheel brakes during an ABS cycle. This stored fluid is used by the
pump/ motor to provide build pressure for the brake hydraulic system. When the antilock stop is complete, the accumulators are drained by the
pump/motor.