Power Liftgate Calibration

WARNING: This page is about a different car, the 2022 Chrysler Voyager and 2022 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.

Any time a power liftgate component is removed, replaced or a liftgate adjustment is performed, a liftgate calibration must be performed. This calibration enables the Power Liftgate Module (PLGM) to learn or relearn information (travel limits, resistance to door travel, etc.) which allows it to perform properly and safely. To perform the liftgate calibration::

Connect the scan tool to the vehicle and check for any power liftgate system stored Diagnostic Trouble Codes (DTCs). Correct and erase any stored DTCs.
Using the diagnostic scan tool, select the PLGM from the "ECU List".
Select the "Misc Functions" menu.
Select and perform the "Calibrate Liftgate" procedure. Follow the on-screen prompts to complete the calibration.

In order to obtain conclusive testing of the power liftgate system, the Controller Area Network (CAN) bus, and all of the Electronic Control Units (ECUs) that provide inputs to, or receive outputs from the power liftgate system components must be checked. Any diagnosis of the power liftgate system should begin with, the use of a scan tool and the appropriate diagnostic service information.