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.
2000 dodge durango door lock 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.
The door lock solenoids are an integral part of the latches.
I had a power lock issue where it would make this sound watch video but not unlock the rear driver side passenger door.
The only door that unlocks everytime is the drivers door.
Car complaints car problems and defect.
2000 dodge durango having problems with the door locks.
The problem could be anywhere between the junction block and each latch.
The rear passenger door lock will not respond to the commands.
The worst complaints are engine accessories interior and ac heater problems.
The 2000 dodge durango has 22 problems reported for power door locks failed.
I have read about numerous complaints about the door locks and it concerns me.
Average repair cost is 400 at 88 600 miles.
The 2000 dodge durango has 1770 problems defects reported by durango owners.