Some vehicles may exhibit that the power liftgate cannot be opened while stuck in an partially latched or fully opened/closed position, or it may reverse and open just before fully closing. with the following DTCs possibly stored in memory.
B1451:02 BCM - Motor return switch circuit malfunction
B1456:62 BCM - Latch condition malfunction
U2646:16 BCM - Power liftgate (PLG) control module low power supply voltage input
This may be caused by improper control software of the power liftgate control module. To eliminate this concern, the control software of the power liftgate control module has been modified.