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Home >> Infiniti >> 2018 >> QX80 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (2 Of 2) >> Component/Circuit Diagnosis >> Fuel Pump Control Module >> Component Inspection

Component Inspection

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

      FPCM

      Condition

      Voltage

      Connector

      +

      -

      Terminal

      Terminal

      B1

      1

      2

      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.