Cummins

427

UnclassifiedLubrication

What This Code Means

Low oil rifle pressure; Engine shutdown; Communication between the engine control (ECM) and the PCC is severed; CAN Data Link Degraded warning; Battery voltage is below 24 VDC and approaching low level; Unpredictable equipment operation; Low Battery 1 Voltage warning; Battery voltage to the control is approaching high level (exceeding 32 VDC); Potential damage to the control; High Battery 1 Voltage warning

Possible Causes

  • •Active E-Stop button
  • •Communication between the engine control (ECM) and the generator set control is severed
  • •Defective Datalink Harness Assembly
  • •Defective datalink harness connection or open circuit
  • •Dirty battery terminals or loose connections
  • •Discharged or defective battery
  • •Incorrect battery charge float level
  • •Low electrolyte level
  • •Low oil level
  • •O pressed on control during genset operation
  • •Oil system issues (lines or filters)
  • •Power Removed From ECM (Keyswitch) During Genset Operation

Suggested Actions

  1. 1Allow the engine to cool down completely before proceeding
  2. 2Allow the engine to cool down completely before proceeding with checks
  3. 3Check for a defective datalink harness connection or open circuit
  4. 4Check the battery charge float level and lower float level if applicable
  5. 5Check the electrolyte level, top up and re-charge (if applicable)
  6. 6Check the oil level, lines and filters
  7. 7Clean battery terminals and tighten all connections
  8. 8Clean the battery terminals and tighten all connections
  9. 9Ensure the E-Stop button is not active
  10. 10If the engine can be stopped, allow the engine to cool down completely before proceeding
  11. 11Inspect the datalink harness and connector pins from J11-20 to J1939 HIGH (J26-11)
  12. 12Recharge or replace battery
  13. 13Replenish oil level if low
  14. 14Reset control by pressing Fault Reset button with O/Manual/Auto switch in O (off) position
  15. 15Reset the Local/Remote Emergency Stop
  16. 16Reset the control and restart after locating and correcting the problem

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