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Home >> Infiniti >> 2011 >> M37 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 90 (Security Control System) >> DTC/Circuit Diagnosis >> DTC B2196: Dongle Unit >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2012 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
  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
      M68 24 M142 7 Existed
    4. Check continuity between BCM harness connector and ground.
      BCM Ground Continuity
      Connector Terminal
      M68 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
    M142 1 Existed

    Is the inspection result normal? 

    YES: Replace dongle unit.

    NO: Repair or replace harness.

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