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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 618 (Engine Control System (DTC/Circuit Diagnosis) (10 Of 17)) >> DTC/Circuit Diagnosis >> DTC P0603: ECM >> DTC Confirmation Procedure

DTC Confirmation Procedure

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
  1. PRECONDITIONING 

    TESTING CONDITION:

    Before performing the following procedure, confirm that battery voltage is 11 V or more with ignition switch ON.

    GO TO 2.

  2. PERFORM DTC CONFIRMATION PROCEDURE 
    1. Turn ignition switch ON and wait at least 1 second.
    2. Turn ignition switch OFF and wait at least 10 seconds.
    3. Repeat step 1 and 2 for 10 times.
    4. Turn ignition switch ON.
    5. Check 1st trip DTC.

    Is DTC P0603 detected?

    YES

    Proceed to Diagnosis Procedure .

    NO

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

    NO

    Confirmation after repair: INSPECTION END

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