When turning right, I engage the turn signal. Normally, when I complete the turn, the signal shuts off automatically. For the last month or so, it will not shut off by itself. I have to shut it off manually. It blinks (on the dashboard)and the exterior lights flash normally. But I have to turn it off manually after completing the turn. The left turn signal mechanism works normally. When the problem initially appeared 3 weeks ago, the horn would sound when turning the steering wheel. Engaging the turn signal lever silenced the horn. Horn is not now the problem, just the right turn signal which does not shut off automatically when completing a right hand turn.