Cummins ISX » Fault Code: 4151 SPN: 5742 FMI: 9/9 - Bad J1939 data link

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Fault Code Overview​

CodesReason for codeEffect of code
Fault Code: 4151
PID(P):
SPN: 5742
FMI: 9/9
Lamp: Amber
SRT:
No communications on the J1939 data link between the ECM and the after-treatment diesel particulate filter temperature sensor module.Possible reduced engine performance.

Possible causes of this fault code include:

  1. Low battery voltage supply
  2. Incorrect terminating resistance of the SAE J1939 datalink circuit
  3. Incorrect battery voltage setting in the recommended Cummins electronic service tool or equivalent.
  4. Incorrect sensor for the application (12 VDC versus 24 VDC)
 

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