11-09-17, 11:34 PM
The head lights, front and back break light and the horn all get their power from the same wire it's a brown/blue and it goes from the ignition to one side of the signaling fuse. Then the other side of the signalling fuse is brown and it goes from the signaling fuse into the right handlebar switch. Then they all take power from that brown wire but it looks like the head light and brake light share a connection that the horn doesn't so that connection could be your problem since your horn is working. It looks like the connection is inside the right handlebar switch. You'd be looking for corrosion or a burnt or damaged connection. If it'd help I could fill in the power and grounds on the circuit you're looking and try and scan it and put it up.