Touch Sensor Circuit: Procedure

1. Check the Data List for proper functioning of the power back door touch sensor.
   BACK DOOR (POWER BACK DOOR ECU)
   
   

   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 OFF: Power back door touch sensor RH is not pressed	-

   OK

   The display is as specified in the normal condition.

NG → See step   2 

OK → See step   5 

1. Remove the power back door touch sensor, refer to REMOVAL
   Fig 1: Identifying Power Back Door Touch Sensor Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

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

NG → See step   4 

OK: Go to next step 

1. LH Side
   Fig 2: Identifying Power Back Door Touch Sensor LH And Power Door ECU Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Disconnect the T7 sensor connectors.
   2. Disconnect the O15 ECU connector.
   3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection	Condition	Specified Condition
      T7-1 - O15-15 (OSL)	Always	Below 1 Ω
      T7-2 - O15-14 (OSE)	Always	Below 1 Ω
      T7-1 - Body ground	Always	10 kΩ or higher
      T7-2 - Body ground	Always	10 kΩ or higher

2. RH Side
   Fig 3: Identifying Power Back Door Touch Sensor RH And Power Back Door ECU Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Disconnect the T8 sensor connectors.
   2. Disconnect the O15 ECU connector.
   3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

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

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   5