1247
UnclassifiedGeneral
What This Code Means
Spark Plug 10 (B5) Warning; Spark Plug 11 (A6) Warning; Spark Plug 12 (B6) Warning; Spark Plug 13 (A7) Warning; Spark Plug 14 (B7) Warning; Spark Plug 15 (A8) Warning; Spark Plug 16 (B8) Warning; Spark Plug 17 (A9) Warning; Spark Plug 18 (B9) Warning
Possible Causes
- •Critical shutdown fault generated
- •ECM/Engine Fault
- •Root cause unknown
- •The PCC received an unknown message from the ECM
Suggested Actions
- 1Troubleshoot Engine Fault Codes
ASK RUDY ABOUT THIS FAULT
Get a diagnosis walkthrough for 1247 on your specific Cummins unit — cited to the OEM manual, not a forum guess.
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