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The RFC communicates with the Body Computer (BC) and Front Framer Computer (FFC) via the CAN Bus network.

| 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 |

| Fault Code | Description | Symptoms | |------------|-------------|----------| | | Power supply to EBS control unit – voltage too low | Warning light, ABS/EBS inactive, reduced braking assistance | | RFC 05 | CAN bus line break between EBS and trailer module | Trailer ABS light on, no trailer brake response | | RFC 08 | Brake pedal sensor signal out of range | Brake lights stuck on/off, erratic braking, limp mode | | RFC 12 | Front axle pressure sensor fault | Uneven braking, longer stopping distance | | RFC 14 | Rear axle pressure sensor fault | Same as RFC 12, plus possible EBS warning | | RFC 21 | Wheel speed sensor (left front) – no signal | ABS fault on that wheel, possible traction control issue | | RFC 22 | Wheel speed sensor (right front) – implausible signal | ABS activation at low speed without braking | | RFC 29 | EBS internal memory error | Permanent warning, brake system may default to pneumatic backup | | RFC 33 | CAN communication timeout with engine ECU | Combined engine/brake warning, cruise control may fail | | RFC 41 | Trailer control valve circuit failure | Trailer brakes may not engage or drag | | RFC 50 | Brake lining wear sensor (front) open circuit | Brake pad wear warning (false or real) |

| 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. |

In this long-form guide, we will dissect everything you need to know about Iveco Stralis RFC fault codes: what they mean, how to read them, the most common codes, and step-by-step troubleshooting.

iveco stralis rfc fault codes

Iveco Stralis Rfc Fault Codes [extra Quality] Jun 2026

The RFC communicates with the Body Computer (BC) and Front Framer Computer (FFC) via the CAN Bus network.

| 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 | iveco stralis rfc fault codes

| Fault Code | Description | Symptoms | |------------|-------------|----------| | | Power supply to EBS control unit – voltage too low | Warning light, ABS/EBS inactive, reduced braking assistance | | RFC 05 | CAN bus line break between EBS and trailer module | Trailer ABS light on, no trailer brake response | | RFC 08 | Brake pedal sensor signal out of range | Brake lights stuck on/off, erratic braking, limp mode | | RFC 12 | Front axle pressure sensor fault | Uneven braking, longer stopping distance | | RFC 14 | Rear axle pressure sensor fault | Same as RFC 12, plus possible EBS warning | | RFC 21 | Wheel speed sensor (left front) – no signal | ABS fault on that wheel, possible traction control issue | | RFC 22 | Wheel speed sensor (right front) – implausible signal | ABS activation at low speed without braking | | RFC 29 | EBS internal memory error | Permanent warning, brake system may default to pneumatic backup | | RFC 33 | CAN communication timeout with engine ECU | Combined engine/brake warning, cruise control may fail | | RFC 41 | Trailer control valve circuit failure | Trailer brakes may not engage or drag | | RFC 50 | Brake lining wear sensor (front) open circuit | Brake pad wear warning (false or real) | The RFC communicates with the Body Computer (BC)

| 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. | | | Turbo Problem | EDC, ECM |

In this long-form guide, we will dissect everything you need to know about Iveco Stralis RFC fault codes: what they mean, how to read them, the most common codes, and step-by-step troubleshooting.