Generally slide controllers are mounted in an outside storage compartment directly below the slide. On some coaches they are mounted to the wall of the storage compartment and in others, such as my coach, they mounted on the ceiling of the storage compartment. There will be one controller per slide so if the slide cover multiple storage compartments check them all.
US Army (Ret)
2020 Entegra Accolade 37TS
2019 Jeep Grand Cherokee Trailhawk (Toad)
FMCA - F432054