2014 Prius Back Door Won't Open from inside or outside.

I would imagine the door panels going to have to come off and you're going to have to take a look at the cable or the rod or whatever mechanism is in place luckily I haven't had to have the door panels on my Gen 3 off yet I'm sure it's coming I've had them off on the two.

 

Sounds like a cable or plastic holder or slide is off or broken . I usually pull the door panel off first it's quicker for me to look in there and see if the cable or the rod is actually activating the door locks opening mechanism It's pretty easy to see when the door panels off and you're pulling on the lever.

 

You wouldn't just buy the actuator just to be buying it take the door panel off It's the rear door so you can leave it sitting on the other side of the seat while you're messing with this You undo this then with the door open you use the handle inside the car and you can take like a 6 mm bolt and use that as the locking pin that's built in your door frame You push the bolt into the door locking mechanism and see that it clicks onto the bolt that you're shoving in. And then pull it out push it back in pull the outside handle see if it releases You see where the cables end or the rods are connected to the door lock mechanism or the actuator which to me the actuator is the electric door lock on or off the solenoid part but I guess it's all built into one on these cars but you need to see it to see if something is just broken off of a piece of plastic or disconnected or go to LKQ and look at a junkyard car so you can see behind your door panel without taking yours off per se.

 

Before doing all that, have you opened the door (from the outside ) and double-checked the position of the child-safety selector that is hidden on the trailing edge of the open door?