Mazda CX-5 Service & Repair Manual: Refrigerant Pressure Sensor [Manual Air Conditioner]
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]
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:
Oil Control Valve (OCV)
Purpose, Function
The OCV switches the oil passage to the hydraulic variable valve timing actuator
to control the opening/closing period of the exhaust valve.
Construction
The OCV is installed to the exhaust camshaft cap (No.1).
The OCV consists of a spool valve wh ...
Turbine/Input Shaft Speed Sensor, Output Shaft Speed Sensor [Fw6 A EL, Fw6 Ax
EL]
Purpose/Function
The turbine/input shaft speed sensor detects the rotation speed of the input
shaft (low clutch drum).
The output shaft speed sensor detects the rotation speed of the output shaft
(primary gear).
The turbine/input shaft speed sensor and output shaft speed ...
Transaxle Fluid Temperature (Tft) Sensor [Fw6 A EL, Fw6 Ax EL]
Purpose/Function
The transaxle fluid temperature (TFT) sensor detects the ATF temperature
in the oil pan.
The transaxle fluid temperature (TFT) sensor signal is used for automatic
shift control, TCC control, line pressure control, direct electric shift control,
learning contr ...
