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Refrigerant Pressure Sensor
 
 
COMPONENT FUNCTION WITHIN SYSTEM
  • The refrigerant pressure sensor converts high-pressure side refrigerant pressure into voltage and outputs it to ECM.
  • This value is transmitted from the ECM to the A/C amp. via CAN communication and is used in A/C compressor control and cooling fan operation request control.
 
 
INDIVIDUAL COMPONENT FUNCTION
The refrigerant pressure sensor converts refrigerant pressure into voltage.
 
 
COMPONENT OPERATION
  • The refrigerant pressure sensor is a capacitance type sensor. It consists of a pressure detection area and a signal processing area.
  • The pressure detection area, which is a variable capacity condenser, changes internal static capacitance according to pressure force.
  • The signal processing area detects the static capacitance of the pressure detection area, converts the static capacitance into a voltage value, and transmits the voltage value to ECM.
  • The output voltage increases as the refrigerant pressure rises.
 
 
COMPONENT PARTS LOCATION
The refrigerant pressure sensor is installed to the high pressure pipe.
Refer to Component Parts Location.