I have a 2004 350. Turn signals quit working don't come up on dash either but when I turn the flashers on the left turn signal on come on that's on the dash and the lights. I replaced the turn signal relay that's under the radio. The old one would buzz when I turned the turn signal on but nothing would come up the new one clicks as it should but I'm still not getting turn signals lights on dash nor the light it's self. The flasher is still like it was only the left one comes on. Any ideas?

 

Probably the multifunction switch.

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