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Home >> Toyota >> 2009 >> Highlander Limited, FWD >> Repair and Diagnosis >> Body & Frame >> Exterior Body Panels >> (Door / Hatch) (Except Hybrid) >> Power Back Door System >> Touch Sensor Circuit >> Inspection Procedure

Inspection Procedure

  1. READ VALUE USING TECHSTREAM (POWER BACK DOOR TOUCH SENSOR) 
    1. Check the Data List for proper functioning of the power back door touch sensor.

    Back door (Power back door ECU) 

    DATA LIST REFERENCE

    Tester Display Measurement Item/Range Normal Condition Diagnostic Note
    PBD Touch Sen L Power back door touch sensor LH signal/ON or OFF ON: Power back door touch sensor LH is pressed
    OFF: Power back door touch sensor LH is not pressed    		 -
    PBD Touch Sen R Power back door touch sensor RH signal/ON or OFF ON: Power back door touch sensor RH is pressed< BR >
    OFF: Power back door touch sensor RH is not pressed    		 -

    OK: 

    The display is as specified in the normal condition. 

    NG: Go to step 2 

    OK: REPLACE POWER BACK DOOR DRIVE UNIT (POWER BACK DOOR ECU)  (See INITIALIZATION )

  2. INSPECT POWER BACK DOOR TOUCH SENSOR 
    1. Remove the power back door touch sensor. (See REMOVAL )
    2. Measure the resistance according to the value (s) in the table below.

    Standard resistance 

    RESISTANCE SPECIFICATION

    Tester Connection Condition Specified Condition
    1-2 Not pressed Approx. 1 kΩ
    1-2 Pressed Below 100 Ω

    NG: REPLACE POWER BACK DOOR TOUCH SENSOR  (See REMOVAL )

    Fig 1: Identifying Power Back Door Touch Sensor Connector Terminals
    G05422048Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to next step 

  3. CHECK HARNESS AND CONNECTOR (POWER BACK DOOR TOUCH SENSOR - POWER BACK DOOR DRIVE UNIT AND BODY GROUND) 
    1. LH Side
      1. Disconnect the T7 sensor connectors.
      2. Disconnect the 015 ECU connector.
      3. Measure the resistance according to the value (s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      T7-1 (OSL) - O15-15 (OSL) Always Below 1 Ω
      T7-2 (OSLE) - O15-14 (OSE) Always Below 1 Ω
      T7-1 (OSL) - Body ground Always 10 kΩ or higher
      T7-2 (OSLE) - Body ground Always Below 1 Ω
      Fig 2: Identifying T7 Sensor And 015 ECU Connector Terminals
      G05422049Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. RH Side
      1. Disconnect the T8 sensor connectors.
      2. Disconnect the 015 ECU connector.
      3. Measure the resistance according to the value (s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      T8-1 (OSR) - O15-13 (OSR) Always Below 1 Ω
      T8-2 (OSRE) - O15-14 (OSE) Always Below 1 Ω
      T8-1 (OSR) - Body ground Always 10 kΩ or higher
      T8-2 (OSRE) - Body ground Always Below 1 Ω

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      Fig 3: Identifying T8 Sensor And 015 ECU Connector Terminals
      G05422050Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: REPLACE POWER BACK DOOR DRIVE UNIT (POWER BACK DOOR ECU)  (See INITIALIZATION )

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