I have a 2010 Prius where the front right side and rear right side turning signals are not working. The turning signal light inside the dashboard also does not show the arrow, however the left side turning signals are working. I have replaced the bulbs on the right side and have checked the fuses as there are no blown fuses. I also tested the bulb socket and there is no electricity. Does any one know what could be the problem? Anything would be much appreciated.