If that is switched say on and you can open from inside now and not outside then it could be a cable.
Nissan frontier door lock stuck.
One part of your nissan frontier is the door lock actuator.
You must have simple understand of your frontier door lock actuator that you can find some problem correct in time.
To unlock a door turn the key toward the rear of the vehicle one time.
So if you know the problem of your car just come to nissan parts deal to find the oem nissan frontier door lock actuator you need.
This is a repair video on how to replace a window motor and or regulator on you nissan frontier with easy to follow instructions.
I looked all over the internet and could not find.
If you like the video plea.
Video showing you an easy way to repair a stuck seat belt that won t retract rewind back into the automobile.
The tools you will need are a screwdriver ratc.
Check to make sure you dont have the child saftey door lock thingy on which prevents someone like in cop cars from opening the door from teh inside.
This trick will work for either side.
Its usually a little switch on the door by the latch.
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That door will now unlock.
To unlock all doors turn the key.
Check the switch on the door jamb probably not making proper contact when depressed so bcm thinks door is still open.