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Home >> Infiniti >> 2024 >> QX55 Essential >> Repair and Diagnosis >> Body & Frame >> Exterior/Interior Trim >> Door And Lock (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> B259E-00 RL Touch Sensor >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK ONE TOUCH UNLOCK SENSOR INPUT SIGNAL 
      1. Ignition switch OFF.
      2. Disconnect rear outside handle assembly LH connector.
      3. Check voltage between rear outside handle assembly LH harness connector and ground.
        (+) (-) Voltage(Approx.)
        Rear outside handle assembly LH
        Connector Terminal
        D215 5 Ground Battery Voltage

    Is the inspection result normal?

    YES>>

    GO TO 3.

    NO>>

    GO TO 2.

  2. CHECK ONE TOUCH UNLOCK SENSOR CIRCUIT 
      1. Disconnect BCM connector.
      2. Check continuity between BCM harness connector and rear outside handle assembly LH harness connector.
        BCM Rear outside handle assembly LH Continuity
        Connector Terminal Connector Terminal
        M19 44 D215 5 Yes
      3. Check continuity between BCM harness connector and ground.
        BCM Ground Continuity
        Connector Terminal
        M19 44 No

    Is the inspection result normal?

    YES>>

    Replace BCM. Refer to Removal and Installation .

    NO>>

    Repair or replace harness.

  3. CHECK ONE TOUCH UNLOCK SENSOR GROUND CIRCUIT 
    1. Check continuity between rear outside handle assembly LH harness connector and ground.
      Rear outside handle assembly LH Ground Continuity
      Connector Terminal
      D215 6 Yes

    Is the inspection result normal?

    YES>>

    GO TO 4.

    NO>>

    Repair or replace harness.

  4. CHECK ONE TOUCH UNLOCK SENSOR 
      1. Connect rear outside handle assembly LH connector.
      2. Check signal between BCM harness connector and ground with oscilloscope.
        (+) (-) Condition Signal(Reference value)
        BCM
        Connector Terminal
        M19 44 Ground Rear outside handle assembly LH Touch
        GNSDB139217Courtesy of NISSAN NORTH AMERICA, INC.
        Other than the above Battery voltage

    Is the inspection result normal?

    YES>>

    GO TO 5.

    NO>>

    Replace rear outside handle assembly LH. Refer to Removal and Installation .

  5. CHECK INTERMITTENT INCIDENT 
    1. Refer to Intermittent Incident .

    >>

    Inspection End.