Jam Protection Function Activates During Power Back Door Operation
Jam Protection Function Activates During Power Back Door OperationDESCRIPTION
- It may be caused by ill-fitting back door, faulty touch sensor or faulty pulse sensor.
- The power back door ECU activates the back motor to open / close the power back door, thus controlling the power back door operation. For jam and foreign object detection, the power back door system uses the pulse sensor built into the power back door drive unit and the 2 touch sensors installed in both sides of the back door respectively.
- When either of the touch sensors comes in contact with an object while the back door is closing, the resistance of the touch sensor changes, which is monitored by the power back door ECU. If a change in resistance is detected, the ECU will judge it to be a jam and foreign object detection in the direction that the power back door is moving and reverse back motor rotation. The touch sensors operate only while the back door is closing. They do not operate while the back door is opening.
- The pulse sensor detects changes in the operating speed of the back door while the back door is operating. When the sensor detects a change in the operating speed, the pulse from the sensor also changes, which is monitored by the power back door ECU. If there is a pulse change detected, the ECU will judge it to be a jam and foreign object detection in the direction that the power back door is moving and reverse back motor rotation.
- If a jam and foreign object detection by the touch sensors and the pulse sensor has occurred 2 or more consecutive times and if the 2nd or most recent detection has occurred during closing, then the power back door ECU will cancel automated back door operation and switch the back door to manual operation mode (not electrically controlled). In order to restore the power back door system to normal operation mode, perform either of the following: manually close the back door fully or press the satellite switch for the power back door or the power back door control switch again (reset operation).
WIRING DIAGRAM
Wiring Diagram:
INSPECTION PROCEDURE
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Step 5 (Continued) - Step 7:
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Step 11 (Continued) - Step 12:
