Mazda CX-5 Service & Repair Manual: Refrigerant Pressure Sensor [Manual Air Conditioner]
Purpose
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The refrigerant pressure sensor detects the refrigerant pressure in the refrigerant cycle.
Function
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The refrigerant pressure sensor converts the detected refrigerant pressure to an electric signal and sends it to the PCM.
Construction
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The refrigerant pressure sensor is installed on the cooler pipe.
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A capacitance type refrigerant pressure sensor, which converts refrigerant pressure into a linear electric signal, has been adopted.
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Consists of a pressure detecting part and signal processing part.
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The pressure detecting part is a variable capacity condenser, which changes capacitance according to the pressure.
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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
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There is a clearance between the movable ceramic diaphragm and the ceramic base, and each side has an electrode.
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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
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Function not equipped.
Refrigerant Pressure Sensor [Full Auto Air Conditioner]
Purpose
The refrigerant pressure sensor detects the refrigerant pressure in the refrigerant
cycle.
Function
The refrigerant pressure sensor converts the detected refrigerant pre ...
Refrigerant System Service Cautions
Handling Insufficient Refrigerant Level
If an insufficient refrigerant level is detected at troubleshooting, do
not charge (add) the refrigerant. Because an accurate amount of refrigerant
...
Other materials:
Evaporative Emission (Evap) Control System
Purpose, Outline
Prevents release of evaporative gas into the atmosphere.
The intake manifold vacuum introduces evaporative gas to the intake manifold
via the charcoal canister and the purge solenoid valve.
System Diagram
U.S.A. and CANADA
Except U.S.A. and CANADA
...
Coupling Component Calibration Data Writing
1. Connect the M-MDS to the DLC-2.
2. After the vehicle is identified, select the following items from the toolbox
of the M-MDS.
Select “Chassis”.
3. Then, select items from the screen menu in the following order.
Select “4WD/AWD”.
Select “Coupling Calibra ...
Fuel Tank Removal/Installation
WARNING:
Fuel is very flammable liquid. If fuel spills or leaks from the pressurized
fuel system, it will cause serious injury or death and facility breakage. Fuel
can also irritate skin and eyes. To prevent this, always complete the “Fuel
Line Safety Procedure”, while referring ...
