Passanger side windo replacement

Replace the regulator. It comes with the motor. You have to remove the door panel to access it.

Sounds like the motor is bad.remove passenger panel check for voltage at motor ,if no voltage wiring is broken .if there is voltage replace motor

Check the wires on the driver's door between the door and the post. A break in a wire will affect the passenger side.

POWER GOES TO THE DRIVERS DOOR TO OPERATE BOTH ;RUNS MOTER ON PASSINGER DOOR; PASSINGER DOOR RUNS IT`S OWN POWER; CHECK CONNUITY IN THE SWITCHES AS YOU PUT THEM IN THE OFF ON POSITIONS !?

Doubt it is a relay,all but one window works! Are you just going to buy a new one,without knowing if it is the problem?
Check the pass window switch.
Switch,okey,remove door panel and check out motor

The master switch or passenger side switch could be bad.

Pain but fixable. Sounds like the linkage is not connected. Even a mechanic will have to remove the door panel and fight with it. If you can remove the rear seat from the drivers side side door then you might have room to remove the passenger side door panel to fix it. Usually clips are the first thing to break on door handle/latch linkages

The door panel will have to be removed.Look for all screws and remove them.Then pull panel off gentle.The little plastic keepers will pull out,some will stay in the panel,you will have to pry the ones in the door out and place them back in the door panel before reinstalling the door panel.Look for a broken gear,or I think in this case,a broken gear tape.also the window guides(may be not all of them)will have to be replaced.Then fold around the window,and fit in the track.I really can not tell you much more,this is the best I can instruct on this item,If I can still be of help,please ask.

Requires removing inside panel to gain access to latching mechanism. Most likely a part has broken. Make sure window is raised. Examine all four sides of inner door panel. Look for screws and or screw caps. Remove all screws including door handle, power window and remote mirror controls. Gently pry bottom edge of panel away from door while feeling for resistance (be certain all screws are removed). When inner panel is released, raise panel up and remove. Inspect outer door and inner door latch to determine malfunction (working both controls one at a time). Replace defective parts from dealer or junk yard. Reinstall is reverse.

what do you need to know? the small passanger window or door window?
if you are replacing the door window then you need to remove the doos cover on the inside of the car. Then remove the old window base from the tracks. Slowly slide the new window in ( removing the weather stripping on one side) once the window is in roll the windoe all the way down and replace the weather stripping