Pinch Sensor: Operation
WARNING: This page is about a different car, the 2004 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.
During a power liftgate close cycle, if either of the two pinch sensors detect a obstruction or "Pinched" condition a hardwired signal is sent to the power liftgate control module. The power liftgate control module will stop the direction of the liftgate immediately and return it to the full open position. The conductive rubber strips incorporated into the sensors provide the mechanical means for this sensor function.