I had a power lock issue where it would make this sound watch video but not unlock the rear driver side passenger door.
2000 dodge durango door lock problems.
Took me a bit to fiddle with the lock before the lock finally worked as it.
The problem could be anywhere between the junction block and each latch.
The only door that unlocks everytime is the drivers door.
The 2000 dodge durango has 1770 problems defects reported by durango owners.
The worst complaints are engine accessories interior and ac heater problems.
If you do find power and ground at each one then the problem is in the latch and it will need to be replaced.
It appears to be weather related in that in good weather all the doors will unlock but int he cold and or damp weather only the one door unlocks.
The 2000 dodge durango has 22 problems reported for power door locks failed.
2000 dodge durango door locks are not working properly.
The other possibility would be a wiring issue.
Average repair cost is 400 at 88 600 miles.
I have read about numerous complaints about the door locks and it concerns me.
2000 dodge durango having problems with the door locks.