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Home >> Infiniti >> 2012 >> M37 Base >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Security Control System (With Intelligent Key System) >> DTC/Circuit Diagnosis >> DTC B2196: Dongle Unit >> Diagnosis Procedure
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Diagnosis Procedure

  1. PERFORM INITIALIZATION 
    1. Perform initialization of BCM and reregistration of all Intelligent Keys using CONSULT.
    2. Start the engine.

      Dose the engine start? 

      YES: INSPECTION END

      NO: GO TO 2.

  2. CHECK DONGLE UNIT CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect BCM connector and dongle unit connector.
    3. Check continuity between BCM harness connector and dongle unit harness connector.
      BCM Dongle unit Continuity
      Connector Terminal Connector Terminal
      M120 24 M165 7 Existed
    4. Check continuity between BCM harness connector and ground.
      BCM Ground Continuity
      Connector Terminal
      M120 24 Not existed

      Is the inspection result normal? 

      YES: GO TO 3.

      NO: Repair or replace harness.

  3. CHECK DONGLE UNIT GROUND CIRCUIT 

    Check continuity between dongle unit harness connector and ground.

    Dongle unit Ground Continuity
    Connector Terminal
    M165 1 Existed

    Is the inspection result normal? 

    YES: Replace dongle unit.

    NO: Repair or replace harness.