Pressure Monitoring Module

The pressure monitoring module controls pump operation, by grounding the pump relay coil, in response to changes in hydraulic accumulator pressure. The pressure monitoring module contains two pressure switches; if these switches do not indicate the same pressure, the sensor block will illuminate the Red BRAKE warning indicator lamp and disable anti-lock function. The pressure monitoring module will also illuminate the BRAKE indicator lamp and disable anti-lock functions (by turning off the valve relay) if low accumulator pressure is detected.