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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 679 (Security Control System (DTC/Circuit Diagnosis)) >> DTC/Circuit Diagnosis >> DTC B2191: Difference Of Key >> Diagnosis Procedure

Diagnosis 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. PERFORM INITIALIZATION 

    Perform initialization with CONSULT. Re-register all Intelligent Keys.

    For initialization and registration of Intelligent 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 Intelligent Key?

    YES

    Intelligent Key was unregistered.

    NO

    Intelligent Key fob is malfunctioning.

    • Replace Intelligent Key fob.
    • Perform initialization again.