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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 524 (Security Control System (DTC/Circuit Diagnosis)) >> DTC/Circuit Diagnosis >> DTC B2191: Difference Of Key >> DTC Diagnosis Procedure

DTC Diagnosis 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. PERFORM INITIALIZATION 

    Perform initialization with CONSULT. Re-register all mechanical keys.

    For initialization and registration of mechanical key, refer to CONSULT Immobilizer mode and follow the on-screen instructions.

    Can the system be initialized and can the engine be started with re-registered mechanical key?

    YES

    Mechanical key was unregistered.

    NO

    GO TO 2.

  2. REPLACE MECHANICAL KEY 
    1. Replace mechanical key.
    2. Perform initialization with CONSULT. Re-register all mechanical keys.

      For initialization and registration of mechanical key, refer to CONSULT Immobilizer mode and follow the on-screen instructions.

    Can the system be initialized and can the engine be started with re-registered mechanical key?

    YES

    Inspection End.

    NO

    BCM is malfunctioning.

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