Turn Signal Issues?

Check the front lights to see if they get power if they don't, work your way back to the firewall connector, still no, go on the inside of the firewall connector, still no, then the turn switch is probably dead on that circuit. The front is isolated from the back because of the brake lights is why the front can die but the back still has power. The reason the back won't flash is the stock flashers will tell you if a bulb it out by not flashing, it was Mopars way of warning you of a problem.

Make sure you check all of the connectors in the path it is usually bad contact in a connector.

Chuck