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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 490 (Engine Control System (VK56VD) DTC/Circuit Diagnosis (5 Of 6)) >> DTC/Circuit Diagnosis >> DTC P1220: Fuel Pump Control Module (FPCM) >> DTC Confirmation Procedure

DTC Confirmation Procedure

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD and 2019 Nissan NV2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. PRECONDITIONING 
    1. Turn ignition switch OFF and wait at least 10 seconds.
    2. Turn ignition switch ON.
    3. Turn ignition switch OFF and wait at least 10 seconds.

    TESTING CONDITION:

    • Before performing the following procedure, confirm that battery voltage is between 12 - 15 V at idle.
    • Before performing the following procedure, check that the engine coolant temperature is -10 deg.C (14 deg.F) or more.

    GO TO 2.

  2. PERFORM DTC CONFIRMATION PROCEDURE 
    1. Start engine and let it idle for at least 5 seconds.

      If engine does not start, crank engine for at least 5 seconds.

    2. Check DTC.

    Is DTC detected?

    YES

    Go to Diagnosis Procedure .

    NO

    To check malfunction symptom before repair: Refer to Intermittent Incident .

    NO

    Confirmation after repair: INSPECTION END

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