If the wiper stops working each time it rains then more than likely you have an issue with the wiring or the ground.
However, do the wipers work when it does not rain?
If they do then we need to check for power when it is wet and check the ground for high resistance. I included the wiring diagram but if the wiring checks out then more than likely you have an issue with the motor getting moisture inside of it
https://www.2carpros.com/articles/how-to-check-wiring
I would replace it at that point. I attached a guide that will help replacing this.
https://www.2carpros.com/articles/how-to-replace-a-windshield-washer-pump
Please see the info below and let us know if you have other questions. Thanks
Images (Click to make bigger)
SPONSORED LINKS
Saturday, July 17th, 2021 AT 4:29 PM