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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 506 (Heater & Air Conditioning System) >> Basic Inspection >> Performance Test >> Inspection >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.
  1. Connect recovery/recycling/recharging equipment (for HFC-134a) or manifold gauge.
  2. Start the engine, and set to the following condition.
    Test condition

    Surrounding condition

    Indoors or in the shade (in a well-ventilated place)

    Vehicle condition

    Door

    Closed

    Door glass

    Full open

    Hood

    Open

    Engine speed

    Idle speed

    A/C condition (front)

    Temperature control switch or dial

    Full cold

    A/C switch

    ON

    Air outlet

    VENT (ventilation)

    Intake door position

    Recirculation

    Fan speed

    Maximum speed set

  3. Maintain test condition until A/C system becomes stable. (Approximately 10 minutes)
  4. Check that test results of "recirculating-to-discharge air temperature" and "ambient air temperature-to-operating pressure" are within the specified value.
  5. When test results are within the specified value, inspection is complete.

    If any of test result is out of the specified value, perform diagnosis by gauge pressure. Refer to Inspection .