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Home >> Infiniti >> 2021 >> QX50 Essential, 4WD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (5 Of 5) >> DTC/Circuit Diagnosis >> Low Pressure Fuel Pump >> Component Inspection (Fuel Pump Control Module)
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Component Inspection (Fuel Pump Control Module)

  1. CHECK FUEL PUMP CONTROL MODULE 

    Check the voltage between fuel pump control module terminals under the following conditions.

    Fuel pump control module

    Condition

    Voltage

    (Approx.)

    Connector

    +

    -

    Terminal

    M194

    6

    5

    For 1 second after turning ignition switch ON

    9.9 V

    More than 1 second after turning ignition switch ON

    0 V

    Idle speed

    9.9 V

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace fuel pump control module. Refer to Removal and Installation .

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