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.
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.
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