XMC 000639.08 – Vehicle CAN-BUS (500 kBd), Time-Out

XMC 000639.08 (XMC 639.08)

Code: 000639.08

Shortcode: 639.08

Description:

This error code is generated when too many CAN messages are received via the vehicle CAN-BUS (500 kBd), indicating a possible defective terminating resistor or other issues within the CAN-BUS network.

Reaction:

When this error is detected, the control software will limit or disable certain functions to prevent data overload and ensure safe operation of the CAN-BUS network.

Recommendations:

Inspect CAN-BUS Network:

  • Check the CAN-BUS wiring and connections for any signs of damage, loose connections, or corrosion. Repair or replace as necessary.

Verify Terminating Resistors:

  • Inspect the terminating resistors at both ends of the CAN-BUS network. Ensure they are functioning correctly and replace if defective.

Monitor CAN Traffic:

  • Use diagnostic tools to monitor CAN-BUS traffic and identify any unusual activity or excessive message frequency.

Update Control Software:

  • Ensure that the control software is up-to-date and optimized for handling CAN-BUS communication.

Consult Technical Support:

  • If the issue persists, consult technical support for further assistance in diagnosing and resolving the CAN-BUS time-out issue.

Note:

Maintaining the integrity of the CAN-BUS network is crucial for reliable vehicle communication. Regular inspection and maintenance of the CAN-BUS system can help prevent such issues from occurring.


Control Units: John Deere