Which fuse on the fuse diagram is used for the turn signal?

There are 3 main fuses that run the blinker system, (IBU 1 fuse inside the ICU junction block, B+3 and B+2 in the fuse panel under the hood). Here is a guide to help you with the testing. If the blinkers are not working and the fuses are good, chances are the IPS module (BCM) has gone bad. I have included the turn signal wiring diagrams in the images below so you can see how the system works.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

The system does have other fuses that you should check as well, the wiring diagrams will show. Check out the images (below). Please let us know how it goes.