Front passenger door will not open 1998 Tercel

If the passenger door has not been opened for some weeks or months, or in icy weather, it is possible that the rubber seals around the door frame will cause the door to appear 'stuck' fast - in this case, a bit of extra force from inside the car whilst pulling on the interior door handle should cause the door to open. Failing that, if the car has electrically operated central locking, when the key fob is pressed to deactivate the central locking does the door lock on the passenger side work as expected? Try unlocking the passenger door with a key, and or pull the door lock button upwards to ensure that the lock has been deactivated. Check for blown fuses.