Air Conditioning (A/C) Refrigerant Pressure Sensor Description. Chevrolet Monte Carlo 2000

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2000 🢒 Monte Carlo 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Air Conditioning (A/C) Refrigerant Pressure Sensor Description

A/C Refrigerant Pressure Sensor

The electronic A/C refrigerant pressure sensor is mounted to the line between the condenser and the evaporator. The output to the PCM is variable and depends on the pressure inside the line. A higher pressure will result in a higher voltage out.

The PCM constantly monitors the A/C system pressure in order to achieve the following effects:

•	Disengage the A/C clutch if the pressure is above 2700 kPa (440 psi).

•	Disengage the A/C clutch if pressure is below 285 kPa (38 psi).

•	Boost the idle air control in order to compensate for the A/C load at idle.

•	Control the cooling fan operation.

Replace the pressure sensor if it fails. It is not repairable.