Power Liftgate Pinch Sensor

Power Liftgate Pinch Sensor


Use extreme caution when testing pinch sensor operation.

To verify power liftgate system and pinch sensor operation.

- Cycle the power liftgate through two complete open and close cycles, during each of the final close cycles, with the liftgate in mid-travel , depress each of the pinch sensors to verify the power liftgate control module detects an obstruction and returns to the open position. If OK, pinch sensors and module are OK at this time. If not OK, continue this diagnostic procedure.

- Remove the liftgate trim panel to access the inoperable pinch sensor's electrical connector. Using an ohmmeter, check for continuity on the two wires leading from the pinch sensor. While depressing the pinch sensor, continuity should be 300 ohms maximum While not depressing the pinch sensor, continuity should be 10K ohms min. If OK, pinch sensor is OK at this time. If not OK, replace the pinch sensor.

Thermistor

The thermistor portion of the right pinch sensor provides the temperature signal to the power liftgate control module (temperature is provided when the pinch sensor is in an unpinched condition; when pinched, temperature is unavailable because the thermistor is shorted). Refer to the table below to test the thermistor resistance.

Right Pinch Sensor/Thermistor Diagnostic Table