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: Monitors air suspension sensors, axle weight sensors, and EBS lines.
For complex, system-wide faults, the official Iveco E.A.SY. diagnostic tool is the most accurate method to analyze the CAN bus and pinpoint the exact source of error.
| Issue | Associated Computer | Common Codes | Primary Symptoms | | :--- | :--- | :--- | :--- | | | RFC, FFC | 1A05, 1B05, 0D05 | Specific light not working. | | Air Pressure Problem | RFC, BC | DTC 09, FMI 01 | Low air pressure warning, gauge reading zero. | | Turbo Problem | EDC, ECM | 2F, 34 | Loss of power, Limp Mode, engine won't start. | | CAN Bus Error | BC | 78, 3202 | Multiple random warnings, erratic gauge behavior, gearbox issues. | | ABS/Wheel Speed | EBS | 01, 3C, 04, FMI 05 | Brake issues, ABS light on. |
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. iveco stralis rfc fault codes
The RFC system relies heavily on solid grounding points along the rear chassis rail. A rusted ground bolt creates high resistance. This tricks the RFC into thinking a bulb is blown or a sensor is disconnected. Undo the chassis ground bolts, sand the frame to bare metal, and re-secure the eyelets. Step 3: Measure Sensor Voltages
Short circuit or open circuit in the valve block that distributes air to the rear bellows. 2. Rear Lighting & Trailer Interface Codes
The Rear Frame Computer is highly sensitive to voltage fluctuations and resistance changes. The most common structural causes of errors include: Water Ingress : Monitors air suspension sensors, axle weight sensors,
Often indicates a mismatch between the brake pedal switch and accelerator sensors, potentially a safety feature trigger.
Based on technical documents, these faults generally categorized under Engine Control (EDC), Transmission (ZF Astronic), and Braking systems (EBS). Common Iveco Stralis Fault Codes
These codes are often triggered by bulb failures, short circuits, or damaged wiring harnesses at the rear of the vehicle. Dipped beam right side failure. 0405: Dipped beam left side failure. 0905/0912: Right direction indicator circuit error. 0606: Reverse light trailer fault. 1705/1706: Rear fog light issue. 2. Trailer & Braking Signal Faults (16-18 Series) 1605/1606: Trailer stop light left side failure. 1805/1806: Trailer stop light right side failure. 0805/0806: Direction indicator trailer right side. 3. Power and Communication Issues | Issue | Associated Computer | Common Codes
Rear suspension will not raise or lower, truck rides unevenly, or suspension lowers automatically overnight. Common Causes:
Are any happening (e.g., lights out, suspension won't lift)? Does the fault happen only when hitched to a trailer ?
The wiring harness running along the chassis frame rails flexes constantly. Over time, the plastic conduit can rub against the metal frame, wearing through wire insulation and causing intermittent short circuits to the ground. 3. Weak Ground Connections
What is the truck showing (e.g., lights out, suspension dropping)? What year and model variant of Stralis do you have? Share public link
The in an Iveco Stralis is a critical electronic control unit located on the chassis, typically behind the fuel tank, that manages the electrical functions for the rear of the vehicle. When the instrument cluster displays an "RFC" error, it indicates a failure in this module or the components it controls, such as rear lighting, trailer connections, or air suspension sensors. Understanding the RFC Module