: Often indicates a total failure of the RFC module, which is typically a black and silver Bosch box located inside the chassis behind the diesel tank.
The Rear Frame Computer (RFC) is a critical electronic control unit in your Iveco Stralis. It manages the electrical systems at the back of the truck, including the tail lights, trailer connections, air suspension, and rear axle sensors. When a malfunction occurs, the dashboard displays an RFC fault code.
CAN-bus line interruption between RFC and the suspension module. Trailer Connection Module
Indicates a failure or inactive status in communication between the body computer and other modules. iveco stralis rfc fault codes free
: Defective sensor or broken wires, often caused by excessive air pressure in the air dryer unit. 1A 05 Number plate light : Open circuit (check for a 10W bulb). 1B 05
Inconsistent or implausible signal (data corruption). Master List of Common Iveco Stralis RFC Fault Codes Affected Component / System Typical Root Cause RFC 01 Left rear tail light circuit Blown bulb, corroded socket, or severed wiring loom. RFC 02 Right rear tail light circuit Short circuit in the light cluster housing. RFC 03 Left brake light circuit Faulty brake light switch or corroded trailer plug. RFC 04 Right brake light circuit Open circuit in the rear frame wiring harness. RFC 09 Left rear turn signal Incorrect bulb wattage or broken wire. RFC 10 Right rear turn signal Bad ground connection at the rear crossmember. RFC 31 ECAS Rear axle pressure sensor Sensor failure or supply voltage out of range. RFC 32 ECAS Tag/axle pressure sensor Corroded sensor connector pins. RFC 41 Rear axle height sensor Mechanical linkage broken or sensor internal fault. RFC 52 Trailer ABS power supply circuit Faulty relay or short circuit in the trailer suco socket. RFC 70 RFC Module internal memory error Internal hardware failure or severe voltage drop. RFC 94 CAN-bus communication line (BC to RFC) Twisted pair data lines damaged, green/white wires chaffed. Step-by-Step Diagnostics for RFC Faults
: If you have a general RFC system fault combined with air issues, check the air pressure sensor on top of the air dryer unit in the middle of the chassis. : Often indicates a total failure of the
Doing this clears phantom RFC codes caused by old learned values.
Are you experiencing any like non-working lights or suspension issues? Share public link
Indicates a malfunction in the HVAC system's air recirculation flap. When a malfunction occurs, the dashboard displays an
Any you notice (e.g., lights blinking, doors not locking)
Incorrect value or message (often "value too high" or "too low"). Troubleshooting Tips Check Bulbs First:
If your RFC code points to a pressure sensor, locate the air dryer unit. Check the electrical connector on top of it for moisture or corrosion. If the system is not releasing overpressure correctly, the sensor itself is likely faulty and requires replacement.
Spray thoroughly with a dedicated electronics contact cleaner. Advanced Troubleshooting: The CAN-Bus Line
