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Home >> Infiniti >> 2012 >> FX50 >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (VK50VE) - FX50 - Component & System Checks, Ecu & Symptom Diagnosis, Precautions & Preparation, Periodic Maintenance, Service Data And Specifications (SDS) >> Ignition Signal >> Component Function Check

Component Function Check

  1. INSPECTION START

    Turn ignition switch OFF, and restart engine.

    Does the engine start? 

    YES-1: With CONSULT: GO TO 2.

    YES-2: Without CONSULT: GO TO  3.

    NO: Go to "DIAGNOSIS PROCEDURE ".

  2. CHECK IGNITION SIGNAL FUNCTION

    With CONSULT 

    1. Perform "POWER BALANCE" in "ACTIVE TEST" mode with CONSULT.
    2. Check that each circuit produces a momentary engine speed drop.

    Is the inspection result normal? 

    YES: INSPECTION END

    NO: Go to "DIAGNOSIS PROCEDURE ".

  3. CHECK IGNITION SIGNAL FUNCTION

    Without CONSULT 

    1. Let engine idle.
    2. Read the voltage signal between ECM harness connector terminals under the following conditions with an oscilloscope:
    ECM Voltage signal
    Cylinder + -
    Connector Terminal Connector Terminal
    1 F110 10 M160 128
    G04900809Courtesy of NISSAN NORTH AMERICA, INC.
    2 9
    3 13
    4 14
    5 18
    6 22
    7 26
    8 30
    NOTE: The pulse cycle changes depending on RPM at idle.

    Is the inspection result normal? 

    YES: INSPECTION END

    NO: Go to "DIAGNOSIS PROCEDURE ".

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