try the turn signal switch, the connector on it, the connections to the signal lights, the wiring, etc.
On some vehicles, the turn signal switch controls front and back blinkers separately
Check bulbs Check flasher Check fuses
Make sure the bulbs are good.
Change front light bulbs
Start with the fuses, then check the bulbs, then start tracing wires.
check fuses under dash panel and for short if wired for trailer
has anyone checked the fuses and bulbs?
You have to diagnose the system to determine the cause. Check the fuses, the bulbs, the flasher relay then the switch.
it will either be the bulbs them selves or sheck the fuses
First, check all fuses. Then see if you are getting power to the bulbs. Then the next possibility would be the turn signal switch.
If you already checked your bulbs then check your fuses, usually this is the case when all the lights stop working at the same time.
check your bulbs and fuses check your bulbs and fuses
the blinker relay is probably bad