Mazda 3 Service Manual: Refrigerant Pressure Sensor Inspection [Manual Air Conditioner]

Mazda 3 Service Manual / Engine / Emissions / Refrigerant Pressure Sensor Inspection [Manual Air Conditioner]

MZR 2.0, MZR 2.5

1. Install the manifold gauge.

2. Verify the high-pressure side reading of the manifold gauge.

3. Measure the terminal voltage of the climate control unit.

1G,1H and 2J

4. Verify that below graph as measure the terminal voltage 2J.

5. Follow the climate control unit inspection when measure the other terminal voltage..

Terminal 1G: 1.0 V or less
Terminal 1H: Approx. 5 V (Ignition switch on)

If the each voltage is not normal, inspect the related wiring harness.

If there is any malfunction, replace the related wiring harness.
If wiring harness is normal, replace the refrigerant pressure sensor.

SKYACTIV-G 2.0

1. Install the manifold gauge.

2. Verify the high-pressure side reading of the manifold gauge.

3. Measure the terminal voltage of the PCM.

2BB, 2AX and 2AJ

4. Verify that below graph as measure the terminal voltage 2AX.

5. Follow the PCM inspection when measure the other terminal voltage..

Terminal 2BB: 1.0 V or less
Terminal 2AJ: Approx. 5 V (Ignition switch on)

If the each voltage is not normal, inspect the related wiring harness.

If there is any malfunction, replace the related wiring harness.
If wiring harness is normal, replace the refrigerant pressure sensor.

Refrigerant Pressure Sensor Inspection [Full Auto Air Conditioner]

MZR 2.3 DISI Turbo, MZR 2.5 1. Install the manifold gauge. 2. Verify the high-pressure side reading of the manifold gauge. 3. Measure the terminal voltage of the climate control unit. 1C, ...

Refrigerant Pressure Sensor Removal/Installation [Full Auto Air Conditioner]

1. Disconnect the negative battery cable.. 2. Discharge the refrigerant.. 3. Disconnect the refrigerant pressure sensor connector. CAUTION: If moisture or foreign material enters the ref ...

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