Dakota 4WD V6-239 3.9L Magnum (1996)
Hydraulic Control Assembly - Antilock Brakes: Description and Operation
Rear Antilock Valve Circuit Operation
With Four Wheel Antilock Brakes
CIRCUIT OPERATION
Circuit B120 from the ABS power relay supplies voltage for the isolation and dump solenoids in the Rear wheel Anti-Lock (RWAL) valve. The
Controller, Anti-Lock Brakes (CAB), activates the solenoids by providing separate ground paths for each.
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Circuit B254 connects to cavity 26 of the CAB and provides ground for the right rear dump solenoid.
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Circuit B252 connects to cavity 28 of the CAB and provides ground for the right rear isolation solenoid.
The RWAL valve has one reset switch that provides an input to the CAB. Circuit B19 from the reset switch connects to the CAB at cavity 19.
With Rear Wheel Antilock Brakes
CIRCUIT OPERATION
The rear wheel anti-lock valve (RWAL) contains an isolation solenoid, a dump solenoid and a reset switch. Each is powered by the Controller,
Antilock Brakes (CAB) on separate circuits.
Circuit B108 from the CAB feeds the dump solenoid. The isolation solenoid is powered on circuit B101 from the CAB. Circuit Z9 provides
ground for both solenoids.
Circuit B111 from the CAB connects to the reset switch. The case grounded RWAL valve provides ground for the reset switch.
