Iveco/FPT C13 troubleshooting: 24 fault codes from the manufacturer's own service documentation.
Iveco/FPT C13 — full specs, parts & maintenance.
| Code | Meaning | Remedy |
|---|---|---|
| Q | Engine speed on flywheel sensor | |
| 1.1 | Vehicle speed signal (if available) | Check cabling, connections and component. |
| 1.2 | Torque selector (if available) | Check cabling, connections and component. |
| 1.3 | Cruise Control (if available) | Check cabling, connections and component. |
| 1.4 | Accelerator pedal | Check cabling, connections and component. |
| 1.5 | Clutch pressure switch (if available) | Check cabling, connections and component. |
| 1.6 | Plausibility of brake pedal signal switches | Check cabling, connections and component. |
| 2.1 | Water temperature sensor | Parameter reading. Check connections and component. |
| 2.2 | Air temperature sensor | Parameter reading. Check connections and component. |
| 2.3 | Fuel temperature sensor | Parameter reading. Check connections and component. |
| 2.4 | Supercharging pressure sensor | Parameter reading. Check connections and component. |
| 2.5 | Ambient pressure sensor (inside control unit) | Contact Help Desk for replacement (if any) of the control unit, owing to the sensor being integrated into the same. |
| 3.5 | Battery voltage | Battery test. |
| 6.1 | Flywheel sensor | Fault memory reading by means of the instrument.Check connections and component. |
| 6.2 | Distributing shaft sensor | Fault memory reading by means of the instrument.Check connections and component. |
| 6.4 | Distributing shaft phonic wheel | |
| 7.2 | Engine over revving | Contact Help Desk for control unit replacement. |
| 7.6 | Control unit fault (EEPROM memory) | Contact Help Desk for replacement (if any) of the control unit. |
| 7.7 | Main relay faulty or locked in closed position | |
| 9.1 | ECU power supply cut out too often (5 times): faulty main relay or engine stop by means of battery switch disconnect | |
| 9.2 | Control unit fault (EEPROM memory) | Contact Help Desk for replacement (if any) of the control unit. |
| 9.4 | Main relay faulty or locked in closed position | |
| 9.5 | ECU power supply cut out too often (5 times): faulty main relay or engine stop by means of battery switch disconnect | |
| 9.6 | ECU stop test failure |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.