POWER BACK DOOR SYSTEM Power Back Door Sensor Circuit

DESCRIPTION

When the power back door unit assembly (power back door ECU) receives a jam signal from the power back door sensor while the power back door closer is operating, the power back door unit assembly (power back door ECU) reverses the back door operation and opens the door.

WIRING DIAGRAM

B001Y3BE04
*a Power Back Door Sensor Assembly LH
*b Power Back Door Sensor Assembly RH
*c Power Back Door Unit Assembly (Power back Door ECU)

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (PBD POWER BACK DOOR SENSOR)


    1. Check the Data List for proper functioning of the power back door sensor Click here.

      Back Door
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      PBD power back door sensor (Left) Power back door sensor LH signal / ON, OFF or Open

      ON: Power back door sensor LH pressed

      OFF: Power back door sensor LH not pressed

      Open: Power back door sensor LH circuit open

      		 -
      PBD power back door sensor (Right) Power back door sensor RH signal / ON, OFF or Open

      ON: Power back door sensor RH pressed

      OFF: Power back door sensor RH not pressed

      Open: Power back door sensor RH circuit open

      		 -
      OK
      The display is as specified in the normal condition.

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

  2. INSPECT POWER BACK DOOR SENSOR ASSEMBLY


    1. Remove the power back door sensor assembly Click here.

    2. Inspect the power back door sensor assembly Click here.

      Result
      Result Proceed to
      OK A
      NG (for LH) B
      NG (for RH) C

    B

    REPLACE POWER BACK DOOR SENSOR ASSEMBLY LH Click here

    C

    REPLACE POWER BACK DOOR SENSOR ASSEMBLY RH Click here

    A

  3. CHECK HARNESS AND CONNECTOR (POWER BACK DOOR SENSOR ASSEMBLY - POWER BACK DOOR UNIT ASSEMBLY [POWER BACK DOOR ECU] AND BODY GROUND)


    1. for LH:


      1. Disconnect the S24 power back door sensor assembly LH connector.

      2. Disconnect the L52 power back door unit assembly connector.

      3. Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Tester Connection Condition Specified Condition
        S24-1 (OSL) - L52-15 (OSL) Always Below 1 Ω
        S24-2 (OSLE) - L52-14 (OSE) Always Below 1 Ω
        S24-1 (OSL) - Body ground Always 10 kΩ or higher
        S24-2 (OSLE) - Body ground Always 10 kΩ or higher

    2. for RH:


      1. Disconnect the S23 power back door sensor assembly RH connector.

      2. Disconnect the L52 power back door unit assembly connector.

      3. Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Tester Connection Condition Specified Condition
        S23-1 (OSR) - L52-13 (OSR) Always Below 1 Ω
        S23-2 (OSRE) - L52-14 (OSE) Always Below 1 Ω
        S23-1 (OSR) - Body ground Always 10 kΩ or higher
        S23-2 (OSRE) - Body ground Always 10 kΩ or higher

    OK

    REPLACE POWER BACK DOOR UNIT ASSEMBLY (POWER BACK DOOR ECU) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR