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Home › Mazda › 2017 › CX-9 Signature › Repair and Diagnosis › Heating, Ventilation & A/C (HVAC) › HVAC Control Systems › Control System - Auto A/C › Refrigerant Pressure Sensor Removal/Installation › Notes

Refrigerant Pressure Sensor Removal/Installation: Notes

  1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  2. Discharge the refrigerant. (See REFRIGERANT RECOVERY .) (See REFRIGERANT CHARGING .)
  3. Disconnect the connectors.
    Fig 1: PCM Connector And Bolts With Torque Specifications
    G11433697Courtesy of MAZDA MOTORS CORP.
  4. Remove the bolts.
  5. Set the PCM component out of the way.
  6. Disconnect the connector.
    Fig 2: PCM Connector Location
    G11433698Courtesy of MAZDA MOTORS CORP.
  7. Loosen the refrigerant pressure sensor using two spanners.
    Fig 3: Loosening Refrigerant Pressure Sensor Using Two Spanners
    G11433699Courtesy of MAZDA MOTORS CORP.
  8. Remove the refrigerant pressure sensor.
    Fig 4: Removing Refrigerant Pressure Sensor
    G11433700Courtesy of MAZDA MOTORS CORP.
    CAUTION:
    • If moisture or foreign matter enters the refrigeration cycle, cooling ability will be lowered and abnormal noise will occur. Always immediately plug all open fittings after removing any refrigeration cycle parts to keep moisture or foreign matter out of the cycle.
  9. Install in the reverse order of removal. (See REFRIGERANT PRESSURE SENSOR INSTALLATION NOTE .)
  10. Perform the refrigerant system performance test. (See REFRIGERANT SYSTEM PERFORMANCE TEST .)
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