If regen fails and RFC 296 appears—suspect mechanical blockage.
Before diving into fault codes, it is essential to understand what the RFC system does. . It is a subsystem within the after-treatment setup (specifically the SCR – Selective Catalytic Reduction and DPF system).
Output undercurrent; often due to low-quality or incorrect wattage bulbs. Left Parking Lights (Short Circuit) Inspect wiring for damage or moisture in the light housing. Brake Pad Wear Sensor (Short to Ground)
: Some RFC codes are "ghost" faults. Disconnect the batteries for 15 minutes to see if the codes clear. iveco stralis rfc fault codes free
If you have fixed the physical issue (e.g., replaced a broken wire or bulb) but the code remains locked as active or causes a dashboard warning warning, you need to clear the memory.
Here are some common RFC fault codes you may encounter on your Iveco Stralis:
Look for a thin brown wire about 15cm from the connector; this is a common failure point where wires rot and turn green. If regen fails and RFC 296 appears—suspect mechanical
Disclaimer: This guide is for informational purposes. Always follow safety procedures when working on high-pressure fuel systems (up to 2,500 bar). If unsure, consult a professional.
This specific code indicates a failure in the number plate light circuit. While FMI 05 points to an open circuit (burnt bulb), FMI 06 can indicate a short circuit or a bulb with the incorrect resistance value. This is a perfect example of where checking the owner's forums can be helpful for decoding these nuances.
: Several websites provide downloadable factory manuals at no cost. For electrical architecture, the "Electricidad Iveco Stralis" manual (available on idoc.pub) provides an excellent description of the multiplex system and the functions of the FFC and RFC ECUs. Another valuable resource is the "Iveco Stralis Código De Errores.pdf" , a 420-page document providing deep troubleshooting instructions for the Body Computer (BC) and instrument cluster, which is invaluable for cross-referencing general truck electronics. It is a subsystem within the after-treatment setup
: The unit is a black and silver Bosch box located inside the chassis, typically behind the diesel tank. Check for water ingress or loose multi-plugs.
Yes, a failing battery or a voltage drop after a jump start can cause various electronic modules, including the RFC and Body Computer (BC), to log transient faults. This is often harmless and simply needs a diagnostic tool to be cleared.
: The most valuable and up-to-date free resource is Iveco Daily Forums . This is a community of Iveco owners and mechanics who share real-world solutions. The thread " As 440 FFC RFC codes please " contains detailed expert breakdowns of specific codes, including the exact bulb wattages required.
Faulty reverse switch on gearbox or cut wire at rear bumper. ECAS Air Suspension Valve Solenoid valve unit for air bags not responding.
Often caused by defective sensors or broken wires due to excessive pressure. Number Plate Light (Open Circuit) Check for a blown bulb; requires a bulb specifically. Rear Right Position Light (Open Circuit) Ensure the correct bulbs are installed. Tail/Clearance Lights (Value too high)