2002 Dodge Intrepid turn signals

The most logical suspect is the electronic flasher unit. Most of the time, if the signal switch is defective, just one side doesn't work. Same with the bulbs. The chances of one on each side burning out at the same time is pretty rare. The days of the ultra-reliable 4-dollar flasher are long gone. Now, the engineers found the need to replace it with a 50-dollar electronic assembly, and with the environment all the electronics live in, failure is to be expected.