I believe all turn signals in America have been permanently disconnected.
I think I saw one the other day but it was probably just a reflection from the Sun.
The rules here are:
1. Not using turn signals is preferred. It just confuses people half the time.
2. If you feel that you must use them, use them no more than five feet before _or after_ you start turning, and definitely _after_ you start braking for the turn.
I use my turn signals for every turn and every lane change, when I was learning to drive my Father taught me to use both turn signals and hand signals.
Most folks today are just to lazy, stupid, or self absorbed to let other folks in traffic know what idiotic thing they are about to try next.