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Home >> Toyota >> 2003 >> Highlander Limited, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 855 (Security Control System (With Intelligent Key System)) >> DTC/Circuit Diagnosis >> DTC B2191: Difference Of Key >> Diagnosis Procedure
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Diagnosis Procedure

WARNING: This page is about a different car, the 2013 Nissan Armada. 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: BCM is malfunctioning.