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Home >> Mazda >> 2013 >> 5 Grand Touring >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Control System [HVAC - Full Auto Air Conditioner) >> Refrigerant Pressure Sensor Inspection [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. Follow the climate control unit inspection when measure the other terminal voltage. (See CLIMATE CONTROL UNIT INSPECTION [FULL-AUTO AIR CONDITIONER] .)
    • 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.
Fig 1: Refrigerant Pressure Sensor Circuit
G08150994