The database covers 86 dealer codes — Cummins ISB uses its own factory format, outside the J1939 SPN/FMI standard. A few examples below; look up your own code in the search on the homepage, where you can also pick “Cummins ISB” from the brand list.
| 111 | Electronic Control Module ECM Microprocessor. Symptom: The engine may fail to start. |
| 132 | Accelerator Position Sensor Circuit. Symptom: Engine power is reduced significantly, only limp-home operation is possible. |
| 144 | Coolant Temperature Sensor Circuit |
| 191 | Air Conditioner Clutch Supply Circuit |
| 241 | Vehicle Speed Sensor Circuit. Symptom: The engine speed is limited to the upper speed limit regardless of the vehicle speed. Cruise control, protective downshift and the speed governor will not work. |
| 278 | Lift Pump Circuit |
| 298 | OEM Pressure Sensor Circuit. Symptom: Performance is not affected. |
| 364 | Electronic Control Module ECM to Pump Communications Error |
| 369 | VP44 Fuel Pump To Engine Synchronization Pulse Not Recognized |
| 377 | Fuel Pump Power Relay Stuck-On |
| 391 | VP44 Relay Coil Supply Circuit |
| 432 | Accelerator Pedal Circuit ISS. Symptom: The engine only runs at idle. |
| 443 | Accelerator Position Sensor Circuit. Symptom: The engine only stalls. |
| 524 | Switched Droop Selection Circuit |
| 141sn | Oil pressure sensor circuit |
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.