: Use the steering wheel controls to go to DIAGNOSIS . Select Module : Scroll down until you find RFC .

Iveco once offered a limited version of their software for free. While the full version is subscription-based, the demo mode allows:

: Failure Mode Indicator, which tells you the type of fault (e.g., 05 for open circuit, 06 for short circuit) . OC : Occurrence Counter (how many times it happened) . ACT : Status ( Y for Active, N for Inactive/Stored) . 2. Common RFC Fault Code Reference

: RFC faults are frequently triggered by using the wrong wattage or low-quality bulbs. Ensure all rear bulbs match factory specifications.

The RFC module controls lighting and sensors at the rear of the vehicle. Common codes include:

Locate the main chassis wiring junction boxes at the rear frame. Open the casings and inspect for green corrosion (copper oxidation), water ingress, or cracked insulation.

The RFC acts as the gatekeeper for all electrical signals traveling from the tractor unit to the trailer.