Iveco Stralis Rfc Fault Codes !new! Jun 2026

The rear air suspension relies on height sensors and solenoid valves managed via the RFC. Left rear height sensor signal out of range. FC 42: Right rear height sensor signal out of range.

Do not replace expensive sensors immediately. Crawl underneath the rear chassis and inspect the wiring loom leading to the affected component (e.g., the rear ABS sensor or ECAS valve block). Look for: Chafed, pinched, or cut wires along the chassis rail.

Before performing any electrical repairs, always to prevent accidental short circuits. Modern ECUs are sensitive to voltage spikes, so proper shutdown procedures matter. iveco stralis rfc fault codes

| Component | Test | |-----------|------| | Additive level sensor | Measure resistance (empty ~0Ω, full ~250Ω typical) | | Dosing pump | Supply 12V – should hear clicking/pumping | | Pressure sensor | Compare voltage to pressure curve (0.5V–4.5V range) | | Heating element (if equipped) | Check resistance (~10–50Ω) and 12V supply |

RFC stands for . This module acts as the central hub for the electronics located at the back half of the truck. The RFC controls and monitors: Tail lights, brake lights, and indicators. The rear air suspension relies on height sensors

Understanding IVECO Stralis RFC Fault Codes: Diagnostic and Troubleshooting Guide

RFC codes are extremely sensitive to resistance changes. A slightly corroded bulb base can trigger a fault even if the light appears to be working. Clean the contacts with electrical cleaner. 2. Inspect the Chassis Ground Do not replace expensive sensors immediately

Faulty power supply to the module.

: Monitors air suspension sensors, axle weight sensors, and EBS lines.