Can I ask if you here a "click before it opens or if the car has been in an accident? The truck latch is controlled by the BCM (body control module). here is the truck system wiring for both power and non-power lift units so you can see how the system works. If you hear i click lets run a CAN scan to confirm the BCM failure.
https://youtu.be/InIlnsjOVFA
Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.
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Friday, January 8th, 2021 AT 6:20 PM