Turn signal fuse

Hello everyone,
As you guys here are help-full and helped me throughout my last problems on this forum. I came here to seek help for my TURN SIGNAL FUSES. I have checked all three fuse panels in my truck btw i have peterbilt 389 2020. But i am not able to locate the fuse for turn signals. Maybe i don't know what are they called. The right turn signal on truck is not working but for trailer it is working. I noticed something is sending extra power to all the yellow lights on the right hand side(have some custom lights installed too). Please let me know where that fuse is located and what are they called. Thank you☺️