Total loss of rear functions, multiple unrelated faults appearing simultaneously, or "RFC Communication Failure" on the dashboard.
The RFC system injects a precise amount of catalyst additive (EOLYS or similar) into the fuel tank. This additive lowers the soot combustion temperature, allowing passive DPF regeneration at lower exhaust temperatures.
The RFC processes data from the rear axle height sensors and commands the air suspension solenoid valves.
Never spray high-pressure hot water directly at the RFC module or the axle height sensors during vehicle washdowns. iveco stralis rfc fault codes
Usually caused by a blown bulb, corroded socket, or broken wire leading to the left cluster.
If you are currently troubleshooting a specific code on your truck, let me know:
Before performing any electrical repairs, always to prevent accidental short circuits. Modern ECUs are sensitive to voltage spikes, so proper shutdown procedures matter. Total loss of rear functions, multiple unrelated faults
Turn the ignition key to the position (do not start the engine).
Short circuit detected in the trailer reverse light circuit. Trailer Indicator (Right)
For the best results, you should:
The (Rear Frame Controller) manages the rear lighting and auxiliary systems, including: Taillights & Position lights (Rear right/left) Brake lights & Hazard signals Reverse lights License Plate Lighting Trailer Connection Points
If the RFC has internal corrosion or burnt-out power stages (common after high-voltage jump-starts), the unit may need to be replaced with one having the same part number.
mounted on the right side of the frame, often behind the diesel tank, protected by a black snap-on cover. specific wiring pinout for the RFC unit to help with your troubleshooting? Stralis RFC Fault - Iveco Daily Forums The RFC processes data from the rear axle
One of the most common headaches for Stralis drivers is the "Plausibility Error." This occurs when the RFC receives data from two different sensors that should theoretically match but do not.
