Check the handlebar switch and look for the fuse for the winkers and horn also get the winker solinoid tested. but seems likely the handlebar switch is faulty as the horn and winker switch is on the same side

Look under the front panel and make shure all the wires are plug in. check www.scootdawg.com for a complete list to trouble shot it.
Best Reguards

Larry

Headlight andtail light wont come on every thing else works fine