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: 1242 PID: SPN: 91 FMI: 2 Accelerator Pedal or Lever Position Sensor Number 1 and Number 2 – Data Erratic, Intermittent, or Incorrect. Accelerator position sensors numbers 1 and 2 are reading different values.
Cummins ISB CM850 (2003-06) Fault Code: 1241 PID: SPN: 2623 FMI: 4 Accelerator Pedal or Lever Position Sensor 2 Circuit – Voltage Below Normal or Shorted to Low Source. Low voltage detected at accelerator pedal position number 2 signal circuit.
Cummins ISB CM850 (2003-06) Fault Code: 1239 PID: SPN: 2623 FMI: 3 Accelerator Pedal or Lever Position Sensor 2 Circuit – Voltage Above Normal or Shorted to High Source. High voltage detected at accelerator pedal position number 2 signal circuit.
Cummins ISB CM850 (2003-06) Fault Code: 1229 PID: SID 27 SPN: 2795 FMI: 2 VGT Position Sensor – Data erratic, intermittent, or incorrect. Intermittent variable geometry turbocharger (VGT) position information is being received by the electronic control module (ECM).
Cummins ISB CM850 (2003-06) Fault Code: 1228 PID: 27 SPN: 27 FMI: 2 EGR Valve Position – Data erratic, intermittent, or incorrect. Intermittent EGR position information is being received by the electronic control module (ECM).
Cummins ISB CM850 (2003-06) Fault Code: 1145 PID: SID 6 SPN: 656 FMI: 7 Injector Solenoid Driver Cylinder 6 – Mechanical System Not Responding Properly or Out of Adjustment. Unintended fueling detected in cylinder Number 6.
