Wiper Motor Pulse Board
What you need to do is unplug the harness, remove the 3 screws on the back of the wiper motor assembly. Remove the "pulse board" ( this is what the harness plugs into) there are two small contact points that stick out and have grease around them . clean the dirty grease, bend the two contact tabs out a little and reinstall it and it will work just fine. Extremely common !!!! The other option is to order a new one from the dealer( do not buy re man/rebuilt from aftermarket place) . Removal of the wiper motor is not necessary.
