Have you replaced any bulbs recently? If so did you use the correct type.
If not the bulbs then I'd suspect that the indicator relay is faulty. Buy a new relay and plug it in place of the old one. See:
http://www.fiatforum.com/bravo-brava/78055-brava-flasher-relay.html
http://www.fiatforum.com/bravo-brava/189515-indicator-relay-location-urgent.html
ChicksFan, March 2014