Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: Automatic Back Door Serial Communication

Nissan Rogue (T33) 2021-Present Service Manual / Body Exterior, Doors, Roof & Vehicle Security :: Door & Lock / Dtc/circuit Diagnosis :: Automatic Back Door Serial Communication

Diagnosis Procedure

CHECK AUTOMATIC BACK DOOR SERIAL COMMUNICATION SIGNAL

  1. Ignition switch ON.

  2. Check signal between BCM harness connector and ground using oscilloscope.

    (+) (–)

    Signal

    (Reference value)

    (Approx.)
    BCM
    Connector Terminal
    B26 (with type B meter) 83 Ground

    B123 (with type A meter) 82

Is the inspection result normal?

YES>>

Inspection End.

NO>>

GO TO 2.

CHECK AUTOMATIC BACK DOOR SERIAL COMMUNICATION CIRCUIT

  1. Ignition switch OFF.

  2. Disconnect hands free sensor control unit connector and BCM connector.

  3. Check continuity between hands free sensor control unit harness connector and BCM harness connector.

    Hands free sensor control unit BCM Continuity
    Connector Terminal Connector Terminal
    B452 1 B26 (with type B meter) 83 Yes
    B123 (with type A meter) 82

  4. Check continuity between hands free sensor control unit harness connector and ground.

    Hands free sensor control unit — Continuity
    Connector Terminal
    B452 1 Ground No

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

Repair or replace harness.

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