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Home >> Nissan-Datsun >> 2009 >> Murano LE >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> 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 under the following conditions.
      TERMINALS VOLTAGE REFERENCE

      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 ".

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