The (particularly models equipped with HI-SCR and Euro 6 engines) uses an RFC (ReGen Fuel Catalyst) system. The RFC is a fuel-borne catalyst dosing system designed to assist the Diesel Particulate Filter (DPF) regeneration process.
Because the RFC box is mounted on the chassis (often behind the diesel tank or near the rear axle), it is exposed to road salt and water. Over time, water can seep into the unit or its connectors, causing "short to ground" errors (like iveco stralis rfc fault codes
stands for Rete di Controllo Freni (Italian) → Brake Control Network in English. The (particularly models equipped with HI-SCR and Euro
If the fault appears only when hitched, inspect the 7-pin or 15-pin Susie cables for corrosion or broken wires. iveco stralis rfc fault codes