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Home >> Infiniti >> 2013 >> QX56 AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 359 (Engine Control System - Component Testing (Except CROSSCABRIOLET)) >> Refrigerant Pressure Sensor >> Component Function Check
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Component Function Check

WARNING: This page is about a different car, the 2013 Nissan Murano. 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 under the following conditions.
      ECM Voltage (V)
      Connector + -
      Terminal Terminal
      F8 39 (Refrigerant pressure sensor signal) 40 (Sensor ground) 1.0 - 4.0

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Go to "DIAGNOSIS PROCEDURE ".