Iveco Stralis Rfc Fault Codes Jun 2026

| | Description | Severity | Common Cause | |---------------------|-----------------|--------------|------------------| | RFC 001 | DPF Soot Load Too High (Above 140%) | High – Limp mode | Frequent short trips, faulty differential pressure sensor. | | RFC 019 | Exhaust Gas Temperature Sensor 1 (Before DPF) – Plausibility Error | Medium | Sensor failure, wiring harness chafing near the turbo. | | RFC 032 | Diesel Exhaust Fluid (AdBlue) Quality Fault | Medium | Contaminated DEF, wrong fluid, crystallization in tank. | | RFC 045 | EGR Valve Position – RFC Conflict (Stuck Open/Closed) | High | Carbon buildup, failed EGR actuator, low engine compression. | | RFC 078 | Fuel Dosing Unit – Open Circuit | High – No regeneration | Broken wire at the dosing injector connector, corroded pins. | | RFC 092 | DPF Differential Pressure – Plausibility (Signal out of range) | Medium | Hoses melted or clogged with soot, sensor offset. | | RFC 113 | Engine Torque Derate Active – Forced by RFC | Info only | Consequence of other RFC faults – triggers limp mode. | | RFC 141 | Ash Accumulation – Permanent DPF Limitation | High – Replace DPF | Engine oil consumption, poor fuel quality, high mileage (>500,000 km without cleaning). |

: Number plate light open circuit. This is often fixed by ensuring a bulb is installed; using a 5W bulb may trigger the error.

The RFC must constantly communicate with the Front Computer (FFC), Engine Control Unit (EDC), and the Electronic Braking System (EBS).

Sometimes the RFC module hangs due to a voltage spike. Turn the battery isolator switch off for 10 minutes, then restart the truck. This can clear "soft" errors in the CAN bus memory. Advanced Diagnostics: CAN Bus Issues

Because the RFC controls the rear lighting cluster, bulb failures or wiring issues immediately trigger dashboard warnings. iveco stralis rfc fault codes

: These are the most frequent RFC alerts. They often require checking the rear bulbs, lamp holders, and wiring for corrosion or short circuits.

Internal failure within the rear air bellows pressure sensors. 3. CAN Bus Communication Failures (BCB / CAN2 Errors)

RFC codes are sometimes misconstrued, but they specifically point to issues within the truck’s rear electrical architecture.

Access the onboard diagnostics menu via your steering wheel controls. Navigate to > RFC and note down the active code, checking if it is listed as "ACT" (Active) or "MEM" (Memorized/Passive). 2. Inspect the Main Fuses | | Description | Severity | Common Cause

While codes can vary by Euro version (Euro 4, 5, or 6), these are the most frequent culprits:

To clear hard codes, you will need to connect a diagnostic tool compatible with Iveco multiplex systems, such as or high-quality aftermarket heavy-duty scanners like Texa or Jaltest. To help narrow down your diagnosis, tell me:

In an IVECO Stralis, RFC (Rear Frame Computer) fault codes generally relate to electrical issues in the rear section of the vehicle, including external lighting and air pressure sensors. These faults are often triggered by incorrect bulb wattages, corroded wiring, or failing sensors. Ивеко Форум Common RFC Fault Codes & Meanings

The Rear Frame Computer is a localized Electronic Control Unit (ECU) positioned at the rear of the truck chassis. It connects to the primary engine ECU and dashboard via the vehicle’s CAN-bus (Controller Area Network) lines. | | RFC 045 | EGR Valve Position

The Iveco Stralis chassis wiring loom runs along the left frame rail from the cab to the rear axles. This loom is highly exposed to road debris, moisture, salt, and constant flexing.

Check the wiring harness where it passes over the rear axles. Vibration often causes the insulation to rub through, grounding out the signal wires.

Short circuit (low) or open circuit (high) in the exhaust temperature sensors.