Component Tests and General Diagnostics

DOOR / HATCH: POWER BACK DOOR SYSTEM: Touch Sensor Circuit
- Touch Sensor Circuit

DESCRIPTION

When the power back door ECU (power back door motor unit) 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 TECHSTREAM (PBD TOUCH SENSOR)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Back Door / Data List.

(e) Check the Data List for proper functioning of the power back door touch sensor.

Back Door (Power Back Door ECU)





Result





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

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

A -- END

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

(a) Disconnect the W4 power back door touch sensor LH connector.





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

Standard Resistance:





Text in Illustration





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

NG -- REPLACE POWER BACK DOOR TOUCH SENSOR LH Removal
OK -- Continue to next step.

3. INSPECT POWER BACK DOOR TOUCH SENSOR LH

(a) Remove the power back door touch sensor LH Removal.





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

Standard Resistance:





Text in Illustration





NG -- REPLACE POWER BACK DOOR TOUCH SENSOR LH Removal
OK -- Continue to next step.

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

(a) Disconnect the W4 power back door touch sensor LH connector and K14 power back door ECU connector.

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE POWER BACK DOOR ECU (POWER BACK DOOR MOTOR UNIT) Removal

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

(a) Disconnect the W1 power back door touch sensor RH connector.





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

Standard Resistance:





Text in Illustration





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

NG -- REPLACE POWER BACK DOOR TOUCH SENSOR RH Removal
OK -- Continue to next step.

6. INSPECT POWER BACK DOOR TOUCH SENSOR RH

(a) Remove the power back door touch sensor RH Removal.





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

Standard Resistance:





Text in Illustration





NG -- REPLACE POWER BACK DOOR TOUCH SENSOR RH Removal
OK -- Continue to next step.

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

(a) Disconnect the W1 power back door touch sensor RH connector and K14 power back door ECU connector.

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE POWER BACK DOOR ECU (POWER BACK DOOR MOTOR UNIT) Removal