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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 493 (Engine Control System (VK56VD) DTC/Circuit Diagnosis (4 Of 6)) >> DTC/Circuit Diagnosis >> DTC P0531: Refrigerant Pressure Sensor >> DTC Logic >> 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 

    If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

    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 11 V or more under ignition switch OFF condition.

    GO TO 2.

  2. PERFORM DTC CONFIRMATION PROCEDURE 
    1. Start engine and run it for at least 10 seconds at idle speed.
    2. Check 1st trip DTC.

    Is 1st trip DTC detected?

    YES

    Refer to Diagnosis Procedure .

    NO

    INSPECTION END

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