RLC 000639.14 – Vehicle CAN Bus (500 kBd), Very High Error Rate

RLC 000639.14 (RLC 639.14)

Code: 000639.14

Shortcode: 639.14

Description:

This error code indicates that too many incorrect CAN bus messages are being received, pointing to a general problem with the connection to the vehicle CAN bus (500 kBd).

Reaction:

When this error is detected, the control software may experience limited or no functionality, affecting the performance or operation of specific electronic control systems within the equipment.

Recommendations:

  • Inspect CAN Bus Network:
    • Perform a thorough inspection of the CAN bus network for any physical damage, loose connections, or corrosion. Repair or replace any compromised components.
  • Check for Electrical Interference:
    • Ensure that there are no sources of electrical interference near the CAN bus network that could be causing communication errors.
  • Verify Termination Resistors:
    • Ensure that proper termination resistors are installed at both ends of the CAN bus network. Incorrect termination can lead to high error rates.
  • Monitor CAN Bus Load:
    • Check the CAN bus load to ensure it is not overloaded. Reduce the number of devices on the CAN bus if necessary.
  • Update Control Software:
    • Make sure the control software is updated to the latest version to fix any potential software-related issues.

Note:

A very high error rate on the CAN bus can severely impact the vehicle’s electronic systems. Prompt action to diagnose and resolve the issue is essential to maintain reliable operation.


Control Units: John Deere

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