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Home >> Infiniti >> 2013 >> FX37 Limited Edition >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Component Testing >> Refrigerant Pressure Sensor >> Component Function Check
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Component Function Check

  1. CHECK REFRIGERANT PRESSURE SENSOR FUNCTION 
    1. Start engine and warm it up to normal operating temperature.
    2. Turn A/C switch and blower fan switch ON.
    3. Check the voltage between ECM harness connector terminals as per the following.
      ECM Voltage (V)
      Connector + -
      Terminal Terminal
      M164 105 (Refrigerant pressure sensor signal) 112 1.0 - 4.0

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Go to "DIAGNOSIS PROCEDURE ".

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