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Home >> Mazda >> 2012 >> 3 L4-2.5L >> Repair and Diagnosis >> Heating and Air Conditioning >> Refrigerant Pressure Sensor / Switch >> Testing and Inspection >> Full-Auto Air Conditioner
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Full-Auto Air Conditioner





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 of the climate control unit.

- 1C, 1E 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. Full-Auto Air Conditioner

- Terminal 1E: 1.0 V or less
- Terminal 1C: 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.