Windshield wiper, passenger side, stopped working

You need to pop the hood to see if there is one or two wiper motors. My guess is one motor. Then......... my guess would be that the linkage connecting the two together has come loose. Happened in my Dodge years ago. The motor drove the driver's side and the passenger side linkage was held to the driver's linkage with a plastic peg. The plastic snapped and it stopped working. I had to take off the grill work around the wiper blades and reattach it with a small nut and bolt.