Dakota 4WD V8-318 5.2L (1991)
Hydraulic Control Assembly - Antilock Brakes: Description and Operation
RWAL Hydraulic Valve
The hydraulic valve modulates hydraulic pressure and is controlled by the electronic module. The valve controls fluid pressure to the rear brake units
during anti-lock mode braking.
The valve contains an accumulator, an isolation valve and a dump valve. The accumulator is operated by fluid and spring pressure. The two valves are
operated by electrical solenoids. The solenoids are activated by the anti-lock control module.
During normal braking, the valve components are inactive and allows free flow of brake fluid to the rear brake units. In anti-lock mode, the valve will
decrease, hold or increase fluid apply pressure as needed.
The valve is mounted on the driver side frame rail at the rear of the vehicle.
