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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 77 (Power Control System (IPDM E/R) (DTC/Circuit Diagnosis)) >> DTC/Circuit Diagnosis >> DTC B20A1: ECM Relay On CIRC >> DTC Confirmation Procedure

DTC Confirmation Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. PERFORM DTC CONFIRMATION 
    1. Turn ignition switch ON.
    2. Turn ignition switch OFF and wait 1 second or more.
    3. Turn ignition switch ON.
    4. Perform "Self Diagnostic Result" of "IPDM E/R" using CONSULT.

    Is DTC B20A1 displayed?

    YES

    Refer to Diagnosis Procedure .

    NO

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

    NO

    Confirmation after repair: Inspection End.

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