PLC 000639.19 – Power Train CAN BUS, Very High Error Rate

PLC 000639.19 (PLC 639.19)

Code: 000639.19

Shortcode: 639.19

Description:

This diagnostic trouble code is generated when the control unit detects a very high error rate in the CAN BUS messages related to the power train. This indicates a severe issue with the CAN BUS communication network.

Reaction:

The equipment may experience significant performance issues, including erratic operation or failure of components that rely on CAN BUS communication. The system may enter a fail-safe mode to prevent further damage.

Recommendations:

  • Inspect CAN BUS Network:
    • Thoroughly check the CAN BUS wiring for any damage, corrosion, or loose connections. Repair or replace damaged sections.
  • Verify Termination Resistors:
    • Ensure termination resistors are correctly placed and functioning in the CAN BUS network to maintain proper signal integrity.
  • Check for Electromagnetic Interference:
    • Identify and mitigate sources of electromagnetic interference that may be affecting CAN BUS communication.
  • Update Software:
    • Ensure the control unit and other modules on the CAN BUS network have the latest software updates installed.
  • Replace Faulty Components:
    • Replace any identified faulty modules or control units to restore proper CAN BUS communication.
  • Monitor CAN BUS Traffic:
    • Use diagnostic tools to monitor CAN BUS traffic and identify specific nodes causing errors.

Note:

Maintaining the CAN BUS network’s integrity is critical for reliable system operation. Regular inspections and timely repairs are essential to prevent communication errors.


Control Units: John Deere

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