Cumminz

Cummins ISB CM850 (2003-06) Fault Code: 1633 PID: SPN: 625 FMI: 2 Komnet Datalink Cannot Transmit – Data Erratic, Intermittent, or Incorrect. Communications within the OEM datalink network is intermittent. This fault code is logged when J1939 data link communications between the OEM installed ECM’s and the Cummins engine ECM is intermittent. This fault is not triggered by the Cummins installed ECM and is only stored as an information fault code. Do not recalibrate or change the Cummins ECM for this fault code. Possible repairs: 1)Replace the OEM harness.

Cummins ISB CM850 (2003-06) Fault Code: 1639 PID: SID 51 SPN: 703 FMI: 11 Auxiliary Equipment Sensor Input Number 3 (OEM Switch) – Root Cause Not Known. This fault code is activated when the maximum inlet temperature or inlet pressure of a third party after-treatment system has exceeded the maximum allowable limits. A power derate may or may not be associated with this fault code. Possible repairs: 1)Replace the ECM.2)Repalce the OEM harness

Cummins ISB CM850 (2003-06) Fault Code: 1654 PID: SPN: 1323 FMI: 11 Engine Misfire Cylinder 1- Condition Exists. Engine misfire has been detected in cylinder number 1. If Fault Code 1654 is inactive in the ECM memory and there is no complaint such as ?low power? or ?engine misfire?, it is possible that an intermittent event such as air entering the fuel system following a filter change caused the fault. Inactive counts of Fault Code 1654 should be disregarded unless other performance symptoms are present. The engine coolant temperature must be greater than 71?C [160?F] before this diagnostic will run....

Cummins ISB CM850 (2003-06) Fault Code: 1655 PID: SPN: 1324 FMI: 11 Engine Misfire Cylinder 2 – Condition Exists. Engine misfire has been detected in cylinder number 2. If Fault Code 1655 is inactive in the ECM memory and there is no complaint such as ?low power? or ?engine misfire?, it is possible that an intermittent event such as air entering the fuel system following a filter change caused the fault. Inactive counts of Fault Code 1654 should be disregarded unless other performance symptoms are present. The engine coolant temperature must be greater than 71?C [160?F] before this diagnostic will...

Cummins ISB CM850 (2003-06) Fault Code: 1656 PID: SPN: 1325 FMI: 11 Engine Misfire Cylinder 3 – Condition Exists. Engine misfire has been detected in cylinder number 3. If Fault Code 1656 is inactive in the ECM memory and there is no complaint such as ?low power? or ?engine misfire?, it is possible that an intermittent event such as air entering the fuel system following a filter change caused the fault. Inactive counts of Fault Code 1654 should be disregarded unless other performance symptoms are present. The engine coolant temperature must be greater than 71?C [160?F] before this diagnostic will...