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Home >> Infiniti >> 2013 >> FX50 >> Repair and Diagnosis >> External Pages >> Different car >> Section 14 (Engine Control System - Component Testing) >> Refrigerant Pressure Sensor >> Component Function Check

Component Function Check

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WARNING: This page is about a different car, the 2013 Infiniti FX37. However, it is still accessible from the selected car via links, so may be relevant.
  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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