My wiper blade on the passenger side is not working the diver side blade is working

Hi the problem maybe that the teeth have run in the connection to the motor where the wiper arm connects to it, you have a couple of options, one, replace the motor and the connection is part of it and you cannot just change that part, or two, check the wiper arm to see if it is just the arm or the connection has run its teeth, if its the wiper arm you will be ok, just replace that and they are relatively cheap from main dealer, or if you want a quick temp fix, at the bottom of the wiper arm there is a cap you lift up to get to the nut under it, undo the nut and pull the wiper arm upwards, it should then just pull off the connection, you can inspect both parts when this is off, if it is the connection and not the arm you can do this as a quick fix, locate a drinks can dose not matter which, cut out a piece roughly the size in width to the connection , cut it down so it will rap around the connection and not overlap, then return the wiper arm and tap it back on till you have enough thread showing to put the nut back on and tighten as normal, be careful cutting the can as it will be very sharp and a normal par of scissors will do the trick, hope this helps