LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2012 >> 5 L4-2.5L >> Repair and Diagnosis >> Heating and Air Conditioning >> Refrigerant Pressure Sensor / Switch >> Testing and Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Refrigerant Pressure Sensor / Switch: Testing and Inspection





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. Follow the climate control unit inspection when measure the other terminal voltage. Testing and Inspection

- Terminal 1V: 1.0 V or less
- Terminal 2L: Approx. 5 V (Ignition switch on)
- Terminal 2I: Verify that below graph as measure the terminal voltage

- 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.