The reference covers 556 codes from the factory tables of Iveco — the full list by system is below, stop-now codes first.
A code has two halves. SPN is what is actually at fault — the sensor, component, or parameter. FMI is what is wrong with it — value out of range, open circuit, short circuit, invalid data. So “SPN 100” alone is not a diagnosis yet, but “100/1” already tells you oil pressure has dropped below normal.
That is almost always how it goes: one fault drags five or six codes behind it. An empty AdBlue tank first throws a level error, then interrupted dosing, then a NOx excess and a torque derate. Fix the root cause and the rest clear on their own. Paste the whole list — we will show which code is the root cause.
| 01E2 | Immobiliser: unit or wiring fault, fuel supply blocked |
| 0133 | Intake air temperature sensor circuit — malfunction |
| 0153 | Fuel rail pressure too low |
| 0168 | Injector 1 control circuit — malfunction |
| 0194 | Turbocharger performance too high |
| 0277 | Poor air-fuel mixture combustion in cylinder 3 |
| 0315 | Single failure of the on-board automatic monitoring |
| 0605 | Oxygen sensor 1 signal out of range |
| 013F | Coolant pressure sensor circuit — implausible signal |
| 017D | General air-fuel mixture combustion fault |
| 01D1 | ECU: SPI channel fault |
| 01EB | Ambient (absolute) pressure sensor circuit — malfunction |
| 01FB | Converter efficiency below the permissible |
| 02B4 | CAN bus: no response from the trip computer or test equipment |
| 03F3 | Particulate filter clogging sensor circuit — implausible signal |
Know the code number? Type it into the search — or paste the whole list from the scanner and we will show which fault is the real one.