POWER BACK DOOR SYSTEM Touch Sensor Circuit

DESCRIPTION

When the power back door ECU receives a jam signal from the touch sensor while the power back door is operating, the ECU reverses the back door operation and opens the door.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING INTELLIGENT TESTER (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)

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      PBD Touch Sensor (Left)	Power back door touch sensor LH signal / ON, OFF or Open	ON: Power back door touch sensor LH is pressed OFF: Power back door touch sensor LH is not pressed Open: Power back door touch sensor LH open	-
      PBD Touch Sensor (Right)	Power back door touch sensor RH signal / ON, OFF or Open	ON: Power back door touch sensor RH is pressed OFF: Power back door touch sensor RH is not pressed Open: Power back door touch sensor RH open	-

      Result
      Result Proceed to ON and OFF function is normal A ON and OFF function is not normal, or Open is displayed for LH touch sensor B ON and OFF function is not normal, or Open is displayed for RH touch sensor C

   
   

   B

   CHECK POWER BACK DOOR TOUCH SENSOR LH (POWER BACK DOOR TOUCH SENSOR LH - BODY GROUND) Click here

   C

   CHECK POWER BACK DOOR TOUCH SENSOR RH (POWER BACK DOOR TOUCH SENSOR RH - BODY GROUND) Click here

   A

   END

2. CHECK POWER BACK DOOR TOUCH SENSOR LH (POWER BACK DOOR TOUCH SENSOR LH - BODY GROUND)

   
   

   1. 

      Disconnect the U16 sensor connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition 1 (OSL) - Body ground Always 10 kΩ or higher 2 (OSLE) - Body ground Always 10 kΩ or higher

      Tech Tips

      Perform this inspection with the touch sensor installed on the vehicle.

   
   

   NG

   REPLACE POWER BACK DOOR TOUCH SENSOR LH Click here

   OK

3. INSPECT POWER BACK DOOR TOUCH SENSOR LH

   
   

   1. 

      Remove the power back door touch sensor LH Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition 1 (OSL) - 2 (OSLE) Not pressed 950 to 1050 Ω 1 (OSL) - 2 (OSLE) Pressed Below 100 Ω

   
   

   NG

   REPLACE POWER BACK DOOR TOUCH SENSOR LH Click here

   OK

4. CHECK HARNESS AND CONNECTOR (TOUCH SENSOR LH - POWER BACK DOOR ECU AND BODY GROUND)

   
   

   1. 

      Disconnect the N18 ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition U16-1 (OSL) - N18-15 (OSL) Always Below 1 Ω U16-2 (OSLE) - N18-14 (OSE) Always Below 1 Ω U16-1 (OSL) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

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

5. CHECK POWER BACK DOOR TOUCH SENSOR RH (POWER BACK DOOR TOUCH SENSOR RH - BODY GROUND)

   
   

   1. 

      Disconnect the U16 sensor connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition 1 (OSR) - Body ground Always 10 kΩ or higher 2 (OSRE) - Body ground Always 10 kΩ or higher

      Tech Tips

      Perform this inspection with the touch sensor installed on the vehicle.

   
   

   NG

   REPLACE POWER BACK DOOR TOUCH SENSOR RH Click here

   OK

6. INSPECT POWER BACK DOOR TOUCH SENSOR RH

   
   

   1. 

      Remove the power back door touch sensor RH Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition 1 (OSR) - 2 (OSRE) Not pressed 950 to 1050 Ω 1 (OSR) - 2 (OSRE) Pressed Below 100 Ω

   
   

   NG

   REPLACE POWER BACK DOOR TOUCH SENSOR RH Click here

   OK

7. CHECK HARNESS AND CONNECTOR (TOUCH SENSOR RH - POWER BACK DOOR ECU AND BODY GROUND)

   
   

   1. 

      Disconnect the N18 ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition U3-1 (OSR) - N18-13 (OSR) Always Below 1 Ω U3-2 (OSRE) - N18-14 (OSE) Always Below 1 Ω U3-1 (OSR) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

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