Purpose
The refrigerant pressure sensor detects the refrigerant pressure in the refrigerant cycle.
Function
The refrigerant pressure sensor converts the detected refrigerant pressure to an electric signal and sends it to the PCM.

Construction
The refrigerant pressure sensor is installed on the cooler pipe.

A capacitance type refrigerant pressure sensor, which converts refrigerant pressure into a linear electric signal, has been adopted.
Consists of a pressure detecting part and signal processing part.
The pressure detecting part is a variable capacity condenser, which changes capacitance according to the pressure.
The signal processing part detects the capacitance of pressure detecting part, converts it to voltage, then outputs it to the climate control unit.

Operation
Capacitance type
There is a clearance between the movable ceramic diaphragm and the ceramic base, and each side has an electrode.
When pressure is applied from the ceramic diaphragm side, the ceramic diaphragm deforms, and the clearance between the electrodes changes. As a result, capacitance is changed and pressure is detected.

Fail-safe
Function not equipped.
Refrigerant Pressure Sensor [Full Auto Air Conditioner]
Refrigerant System Service CautionsBefore Service Precaution
WARNING:
Fuel vapor is hazardous. It can very easily ignite, causing serious injury
and damage. Always keep sparks and flames away from fuel.
Fuel line spills and leakage from the pressurized fuel system are dangerous.
Fuel can ignite and cause serious injury or death and damag ...
Cylinder Head Gasket
Purpose, Function
The cylinder head gasket is installed between the cylinder head and cylinder
block to prevent leakage of air-fuel mixture, combustion gas, engine oil, and
engine coolant.
Construction
A four-layer type metal gasket has been adopted for the cylinder head ga ...
Differential Oil Temperature Sensor Inspection
WARNING:
Hot differential oil may cause severe burns. Do not perform maintenance while
differential oil is hot.
1. Disconnect the negative battery cable.
2. Disconnect the differential oil temperature sensor connector and remove the
differential oil temperature sensor.
3. Wrap ...