There are a few possibilities for failure; The wiper motor is bad.
The wiper switch has failed.
To replace the wiper motor is not to bad. It all depends on the windshield cowl and how hard it is to remove and replace.
First, test the wiper motor. I am giving you all the shcematics, connector Identification and diagrams you will need to do this.
Use the wiring schematic and connector identification to find the +12V and GROUND terminals on the wiper motor. Hook up some test leads from your battery and see if wiper motor works.
Also, follow symptom diagnostic sheet to make sure everything else is okay so you can rule out the motor and go on to replacing the switch.