Cummins/Onan C45 N6 troubleshooting: 8 fault codes and symptom-cause-remedy entries from the manufacturer's own service documentation.
Cummins/Onan C45 N6 — full specs, parts & maintenance.
All Cummins/Onan fault codes →
| Code | Meaning |
|---|---|
| Code 141 | - Oil pressure sensor output out of range low |
| Code 143 | - Engine oil pressure low (warning) |
| Code 144 | - Engine coolant temperature out of range low (warning) |
| 2972 | Field Overload (Shutdown) |
| 5134 | Unknown Shutdown at Idle |
| 5365 | Fault Code on Secondary Source (Information that the Fueling Has Been Shifted to Secondary Source) |
| 5669 | Engine Combustion (Shutdown) |
| 6518 | Cold Start Idle Active (Event) |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.