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Home >> Nissan-Datsun >> 2018 >> Sentra SL >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Security Control System (Without Intelligent Key System) >> Without Intelligent Key System >> DTC/Circuit Diagnosis >> B2196 Dongle Unit >> Diagnosis Procedure
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Diagnosis Procedure

  1. PERFORM INITIALIZATION 
    1. Perform initialization of BCM and registration of all mechanical keys using CONSULT.

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

    2. Start the engine.

    Does 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

      M21

      24

      M39

      1

      Yes

    4. Check continuity between BCM harness connector and ground.

      BCM

      Ground

      Continuity

      Connector

      Terminal

      M21

      24

      No

    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

    M39

    4

    Yes

    Is the inspection result normal?

    YES

    Replace dongle unit.

    NO

    Repair or replace harness.