[Bobreey]

Any ideas? After a trip to the detailer, the rear wiper is constantly on despite the position of the switch/stalk. Pulling the fuse obviously works to remedy.

 

[Cornishman]

I had a similar thing after presure washing my car once. After taking off the plastic cover up inside the top tailgate, I discovered that I had managed to completely soak the motor and connections.
After drying out, it was okay.

 

[Bobreey]

Great news. Thanks for reply C-man!