Wipers wont stop at bottom
If the wipers park then you need to replace the multifunction (turn signal) lever. That's pretty easy to do and should only take about 15 minutes.
The only other thing that will cause the wipers to work but not park is the wiper motor cover (other than some weird short that causes voltage to go where it shouldn't... I've never seen one of those). The wiper motor cover is a circuit board attached to the wiper motor with three screws. Unfortunately, you have to remove the motor itself to replace the cover. Removing the motor requires some special tools so you might want to leave that to someone who has the tools and has done it before.





