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Home >> Infiniti >> 2011 >> FX35 RWD >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Door & Lock - With Automatic Back Door -- FX35/FX50 >> DTC/Circuit Diagnosis >> DTC B2417: Touch Sensor LH >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK INSTALLATION OF TOUCH SENSOR LH

    Check that touch sensor LH is installed normally.

    Refer to "TOUCH SENSOR : REMOVAL AND INSTALLATION ".

    Is the inspection result normal? 

    YES: GO TO 2.

    NO: Refer to "TOUCH SENSOR : REMOVAL AND INSTALLATION ".

  2. CHECK TOUCH SENSOR MONITOR ITEM
    1. Select "AUTOMATIC BACK DOOR CONTROL UNIT" using CONSULT-III.
    2. Select "TOUCH SEN LH" in "DATA MONITOR" mode.
    3. Check that the function operates normally according to the following conditions.
      MONITOR ITEMS CONDITION CHART

      Monitor item Condition Status
      TOUCH SEN LH Touch sensor LH Other than below OFF
      Detect obstruction ON

      Is the inspection result normal? 

      YES: GO TO  8.

      NO: GO TO 3.

  3. CHECK TOUCH SENSOR INPUT SIGNAL
    1. Turn ignition switch OFF.
    2. Check voltage between touch sensor LH harness connector and automatic back door control unit harness connector.
      VOLTAGE REFERENCE CHART

      (+) (-) Condition Voltage (Approx.)
      Touch sensor LH Automatic back door control unit
      Connector Terminal Connector Terminal
      D125 1 B207 13 Touch sensor LH Detect obstruction 1.8 - 5 V
      Other than above 2.72 - 7.27 V

      Is the inspection result normal? 

      YES: GO TO  5.

      NO: GO TO 4.

  4. CHECK TOUCH SENSOR LH CIRCUIT
    1. Disconnect automatic back door control unit and touch sensor LH connector.
    2. Check continuity between automatic back door control unit harness connector and touch sensor LH harness connector.
      CONTINUITY REFERENCE CHART

      Automatic back door control unit Touch sensor LH Continuity
      Connector Terminal Connector Terminal
      B207 2 D125 1 Existed
    3. Check continuity between automatic back door control unit harness connector and ground.
      CONTINUITY REFERENCE CHART

      Automatic back door control unit Ground Continuity
      Connector Terminal
      B207 2 Not existed

      Is the inspection result normal? 

      YES: Replace automatic back door control unit. Refer to "REMOVAL AND INSTALLATION ".

      NO: Repair or replace harness.

  5. CHECK TOUCH SENSOR LH GROUND CIRCUIT
    1. Disconnect automatic back door control unit and touch sensor LH connector.
    2. Check continuity between automatic back door control unit harness connector and touch sensor LH harness connector.
      CONTINUITY REFERENCE CHART

      Automatic back door control unit Touch sensor LH Continuity
      Connector Terminal Connector Terminal
      B207 13 D125 2 Existed
    3. Check continuity between automatic back door control unit harness connector and ground.
      CONTINUITY REFERENCE CHART

      Automatic back door control unit Ground Continuity
      Connector Terminal
      B207 13 Not existed

      Is the inspection result normal? 

      YES: GO TO 6.

      NO: Repair or replace harness.

  6. CHECK TOUCH SENSOR LH GROUND CIRCUIT 2
    1. Connect automatic back door control unit and touch sensor LH connector.
    2. Check voltage between automatic back door control unit harness connector and ground.
      VOLTAGE REFERENCE CHART

      (+) (-) Voltage (Approx.)
      Automatic back door control unit
      Connector Terminal
      B207 13 Ground 0.01 - 0 V

      Is the inspection result normal? 

      YES: GO TO 7.

      NO: Replace automatic back door control unit. Refer to "REMOVAL AND INSTALLATION ".

  7. CHECK TOUCH SENSOR LH

    Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES: GO TO 8.

    NO: Replace touch sensor LH.

  8. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    INSPECTION END

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