The intermittent wiper function does not work?

It sounds like the central junction box has gone out, but we should check the fuses and grounds for the system, here is a guide that can help:

https://www.2carpros.com/articles/how-to-check-wiring

Here are the wiper wiring diagrams so you can see how the system works and which fuses to check with the ground locations. Also, you may be able to do a CAN scan to see if any codes come up for the central junction box. You can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

Here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

and

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Here is how to change the CJB out in case you need it. Check out the images (below). Please let us know what happens.

You are welcome, please let us know what happens.

Glad you could get it fixed, thanks for letting us know. Please use 2CarPros anytime we are here to help.