It’s likely the fuse. There is also a relay, but those are pretty robust. My fuse was wrapped up tightly with tape. It took me forever to find it.
If they are both out it’s a fair bet you have lost power to them. Remove the bulb and check for voltage. How are they turned on. Check both sides of the switch with it on if you have one. Then check the relay, again if you have one and you really should if you haven’t. Is there a fuse check that. Hope that helps.
If you have power at the bulbs check the earth. Check continuity of the bulbs. That should be enough to go on. Let us know how you get on
Both of you are correct! It was the fuse. However, I can not find a reason for it to blow, everything seems to be correct. If it blows again I will take it to an electrical guru.
Thank you for your replies.
Ride safe