Only had liability so repairs came out of my pocket. My husband had the same idea as you, but hasn't been able to locate the flasher module just yet. Can you tell me (for certain) where the flasher module is?
Headlights were a loose body ground on the radiator support, they're working now. But still dont have blinkers or flashers. I tested all the fuses with a DMM, and switched relays out with known good ones, and they all worked fine, so I think we've narrowed down the possibilities.