Ram 2500 - 2018 Fuse Box Diagram diagramfusebox›RamRam 2500 - 2018 Fuse Box Diagram. Home; Ram; 2500 - 2018 Fuse Box; A key symbol indicates that the key must be in the. ON/RUN or ACC positions for the outlet to provide. power. The battery symbol indicates that the outlet is. connected to the battery, and can provide power at all. times. RAM 2500 (2007) - fuse box diagram - Auto Genius Jan 23, 2017RAM 2500 (2007) – fuse box diagram. Year of production: 2007. Fuses (integrated power module) An integrated Power Module is located in the engine compartment near the battery.