I have a 2014 Ford Escape that is giving tailgate door open warning on dashboard display even though the door is latched close. I also noticed that the tailgate door does not lock shut. There is no key on tailgate and using the door lock button on side doors doesn’t have any effect. Are these issues related ( tailgate door alarm/ tailgate don’t lock) and how to fix. The latch itself has been replaced.
With the key on, open the liftgate and push the latch in with a screwdriver to engage it. If the warning is still on, remove the latch, unplug the harness and check continuity in the connector on the latch when it’s open and closed. If the resistance doesn’t change, chances are it’s a bad latch.