Good day,

Power liftgate will jerk when I open via remote or overhead console, but only to about 1/4 open. It will not close when any buttons pressed.

I am getting following error codes:
B1969 - Power Liftgate Open Direction Excessive Position Sensor Counts,
B1970 - Power Liftgate Close Direction - Ratchet Primary Switch Performance, and
B1972 - Power Liftgate Latch Release - Ratchet Primary Switch Performance.

Trying to narrow down my search as they all give the same possible causes:
BINDING LIFTGATE
LOGIC GROUND CIRCUIT FAULTY WIRING
LIFTGATE AJAR SWITCH SENSE CIRCUIT FAULTY WIRING
POWER LIFTGATE LATCH
POWER LIFTGATE MODULE (PLGM)

Thanks!