Possible window fuse blown?

There are a few possible reasons why the front and back passenger side windows on your 99 Durango aren't rolling down:

1. Faulty window regulator: The window regulator is the mechanism that moves the window up and down. Over time, the regulator can become worn or damaged, making it difficult or impossible to operate the window.
2. Electrical issue: It's possible that there's an issue with the electrical system that powers the passenger side windows. This could be caused by a blown fuse, a faulty switch, or a problem with the wiring.
3. Window motor failure: The window motor is responsible for moving the window up and down. If the motor is faulty, the window won't move.
4. Window switch problem: The window switch could also be the culprit. If the switch is damaged or not functioning properly, the window won't roll down.

To diagnose the issue, you can start by checking the fuses related to the power windows. If the fuses are intact, you can use a voltmeter to check if the switch is receiving power when it's pressed. If the switch is getting power, the problem could be with the window motor or regulator.
If you're not comfortable performing these diagnostic steps, it's best to take your Durango to a qualified mechanic or automotive electrician for further inspection and repair.

There can be bad connections or broken wires in the system. A defect switch or relays. Just pick up the multi meter and check the voltage from connector to connector to see where you still have and where not. That's how I search the culprit.

possible window track that rolls it up and down, has broken, only way to find out is open the panel on the door and look

If it rolls down and not up then something in your switch has faulted. If it does not roll up or down then either bad switch, bad wiring, or blown fuse/ relay.

Check your manual for fascia fuse box locations
Three fuse boxes are located
In one sunroof fuse number 30/20amp
In box three,elec windows circuit breaker fuses,
number 3/30amp front windows
number 4/30amp rear windows

bad switch common on these dodges.

no most likely the window motor has failed. if it was a fuse the other windows would not work.

they run off of the little metal circuit breakers that you will see in the fuse block, if they are bad they will not work!!

Fuses are relatively inexpensive. My guess is most garages won't charge you anymore than $5-$10 to find blown fuse & replace it for you .

I had the same problem but it turned out to be the safety switch that is in the drivers side gate latch. To get to it you must roll down the window. I did this by disconnecting the motor and attaching a cordless drill battery to the ternminals at the harness. One way rolls up and switch the connection to roll down. Take off the drivers side latch (three screws on gate edge) and there is a switch inside the latch. My local toyota dealer didnt have the swicth so I just took it out of the loop. This solved my problem, but there is about 4 switches/relays in the gate alone that can give you the same problem.