Mazda CX-5 Service & Repair Manual: Refrigerant Pressure Check
NOTE:
-
Measure the refrigerant pressure after approx.10 min
have elapsed from engine start.
1. Install the manifold gauge..
2. Start the engine and warm it up.
3. Set the fan speed MAX HI.
4. Turn the A/C switch on.
5. Set to RECIRCULATE mode.
6. Set the temperature control to MAX COLD.
7. Set to VENT mode.
8. Close all the doors and all the windows.
9. Maintain the engine speed at 1,500 rpm
.
10. Measure the ambient temperature and high- and low- pressure side reading of the manifold gauge.
11. Verify that the intersection of the pressure reading of the manifold gauge and ambient temperature is in the shaded zone.
-
If there is any malfunction, inspect the refrigerant system according to the troubleshooting chart.
Refrigerant Line Removal/Installation
1. Disconnect the negative battery cable..
2. Discharge the refrigerant..
3. Disconnect the engine ground.
4. Disconnect the refrigerant pressure sensor connector.
5. Remove in the order i ...
Refrigerant Pressure Sensor Inspection [Full Auto Air Conditioner]
1. Install the manifold gauge.
2. Verify the high-pressure side reading of the manifold gauge.
3. Measure the terminal voltage at PCM terminal 2BB, 2AX and 2AJ
4. Using the graph below, measure ...
Other materials:
Knock Sensor (Ks)
Purpose/Function
Detects abnormal combustion in the cylinder as basic information for mainly
determining the ignition timing.
Detects abnormal combustion in the combustion chamber and inputs it to the
PCM as a knocking signal.
Construction
Installed on the cylinder ...
Fuel Pump Relay
Purpose, Function
Controls the fuel pump on/off according to control signals from the PCM.
The fuel pump is operated only at engine start or when the engine is running
to improve safety.
Construction
The fuel pump relay is installed in the relay and fuse block.
...
Warm Up Three Way Catalytic Converter (Wu Twc) Inspection
CAUTION:
Perform the following procedures, DTC P0421:00 is indicated only.
1. Connect the M-MDS to the DLC-2.
2. Start the engine and warm it up to normal operating temperature.
3. Turn off the engine.
4. Verify that the engine compression is within the specification..
If ...
