Cummins ISB CM850 (2003-06) Fault Code: 2963 PID: 110 SPN: 110 FMI: 15 Engine Coolant Temperature High – Data Valid but Above Normal Operational Range – Least Severe Level. Engine coolant temperature signal indicates coolant temperature is above the engine coolant temperature engine protection warning limit.
This fault code indicates that coolant temperature has exceeded the engine protection limits for high coolant temperature.
Possible repairs:
1)Replace the ECM.
2)Replace the OEM harness.
Cummins ISB CM850 (2003-06) Fault Code: 2962 PID: 412 SPN: 412 FMI: 0 EGR Temperature – Data Valid But Above Normal Operating Range, Moderately Severe Level.
Cummins ISB CM850 (2003-06) Fault Code: 2961 PID: 412 SPN: 412 FMI: 15 Exhaust Gas Recirculation (EGR) temperature – Data Valid but Above Normal Operating Range, Least Severe Level.
Cummins ISB CM850 (2003-06) Fault Code: 2773 PID: SPN: 3226 FMI: 0 Aftertreatment Outlet NOx – Data Valid but Above Normal Operational Range – Most Severe Level. The engine NOx output is higher than recommended levels.
Cummins ISB CM850 (2003-06) Fault Code: 2772 PID: SPN: 3226 FMI: 15 Aftertreatment Outlet NOx – Data Valid But Above Normal Operational Range – Least Severe Level. The engine NOx output is higher than recommended levels.
Cummins ISB CM850 (2003-06) Fault Code: 2771 PID: SPN: 3234 FMI: 9 Aftertreatment Outlet NOx Sensor – Abnormal Update Rate. No communications or valid data transfer rate detected on the J1939 datalink between the ECM and the aftertreatment outlet NOx sensor.
Cummins ISB CM850 (2003-06) Fault Code: 2559 PID: SPN: 1845 FMI: 4 Transmission ECU to ECM Communication Lost – Abnormal Update Rate. No communication or an invalid data transfer rate has been detected between the ECM and the transmission ECU.
