My wipers were off and of course one day it decided to rain. So in my haste I only installed the driver side wiper. I turn on the wipers only to see the driver side begin to move then stop. Regardless of switch setting the wiper won't budge. While reading through the forums I came across a posting stating that the wipers have sensors of some sort? Could it be that since only one wiper was installed that it has thrown the system out of sync? What is the fix?