When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Check fuses, check the two connections on the rear brake switch making sure they are on right (you can even test them with a 12volt meter to see if you have power) always check the obvious first. The switch is located on the right side of the bike against the frame near the exhaust. Hope this helps.