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Component Function Check

WARNING: This page is about a different car, the 2010 Infiniti M35. 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.
      CONNECTOR TERMINAL VOLTAGE CHART

      ECM Voltage (V)
      Connector + -
      Terminal Terminal
      M9 105 (Refrigerant pressure sensor signal) 116 1.0 - 4.0
      Fig 1: Checking Voltage Between ECM Harness Connector Terminals
      G06306842Courtesy of NISSAN MOTOR CO., U.S.A.

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Go to "DIAGNOSIS PROCEDURE ".

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