If your turn signals are not turning off(cancelling) your cancelling cam in the turn signals is bad. Not hard to replace will require pulling the steering wheel off. Most of the vendors have replacements. If you want to go direct to the factory here is a link that will get you to the catalog;
http://www.shee-mar.com/PDF/2011%20catalog.pdfAfter the catalog downloads (not long) go to page 32 for turn signals, page 29 has cams, good illustrations. They seem to have forgot to put the years on them, new catalog. ?? 8-[
Larry