The Freightliner Cascadia Wiring Diagram is divided into sections based on system function. This enables the installation of numerous options or accessory systems on the same model truck. This professional Freightliner Cascadia Wiring Diagram set includes detailed information for troubleshooting the electrical system on a 2010 Cascadia truck. View the schematics on your computer or print them out in 11"x17" format. The first fuse is a 300 Amp Battery Terminal fuse installed on the +12 side of the chassis battery. The following fuses can be found in the last engine compartment on the driver's side, in a Chassis Battery Distribution Panel hidden behind a large red rubber cover.