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Home >> Infiniti >> 2011 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Component Testing >> Low Pressure Fuel Pump >> Component Inspection (FPCM)
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Component Inspection (FPCM)

  1. CHECK FUEL PUMP CONTROL MODULE (FPCM)
    1. Check the voltage between FPCM terminals under the following conditions.
      VOLTAGE SPECIFICATION

      FPCM Condition Voltage
      + -
      Terminal Terminal
      7 6 For 1 second after turning ignition switch ON Approx. 8.5 V
      More than 1 second after turning ignition switch ON Approx. 0 V
      Idle speed Approx. 8.5 V

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Replace FPCM. Refer to "REMOVAL AND INSTALLATION ".