RAM 3500 Truck 4WD V8-5.7L VIN D (2003)
Pressure Hold
Both solenoid valves are closed in the pressure hold cycle but only the inlet valve is energized. Fluid apply pressure in the control channel is
maintained at a constant rate. The CAB maintains the hold cycle until sensor inputs indicate a pressure change is necessary.
Pressure Increase
The inlet valve is open and the outlet valve is closed during the pressure increase cycle. The pressure increase cycle is used to reapply the brakes. This
cycle controls re-application of fluid apply pressure.