In my 2003 Adventurer the flasher modules (2 as in last post) were under the dash on the left side. Get to them from the floor. Flasher modules were attached to Winnebago wiring hung from other wiring with zip ties. Turn on a turn signal and listen for the 'ping', follow the sound.
May the Forza be with us! 2014 Winnebago Forza 34T 340 hp Cummins Allison 6 speed 2006 Jeep Wrangler toad
Be helpful to know what chassis. Most flashers on gas rigs are located under the dash in the fuse panel. Some have two, one for turn signals and one for the four way flashers.