87 Jeep Cherokee. Before any changes front passenger blinker did not work. Replaced bulb. Now dash shows the right turn signal light constant (even when not turned on) but both front and back right side flashers do not work. Bulb doesn't even light. Driver side turn signal was working. Removed bulb that worked and put same bulb back in. Now bulb does not work. Rear driver side flasher works but front bulb doesn't do anything. Left turn signal indicator light on dash does flash correctly though. Any ideas?