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

XSC 000639.08 (XSC 639.08)

Code: 000639.08

Shortcode: 639.08

Description:

This error code, XSC 000639.08, is generated when the vehicle CAN BUS (500 kBd) receives too many messages, leading to a time-out. This condition may be indicative of a defective terminating resistor or other issues within the CAN BUS network.

Reaction:

When this fault occurs, the control software will have limited or no functionality, potentially disrupting communication between various electronic control units (ECUs) and affecting overall vehicle operation.

Recommendations:

Inspect CAN BUS Network:

  • Check the CAN BUS wiring and connectors for any signs of damage, loose connections, or corrosion.
  • Ensure all connections are secure and properly terminated.

Test Terminating Resistor:

  • Inspect the terminating resistor within the CAN BUS network to confirm it is functioning correctly.
  • Replace the terminating resistor if it is found to be defective or out of specification.

Monitor CAN BUS Traffic:

  • Use diagnostic tools to monitor the CAN BUS traffic and identify any anomalies or excessive message loads.
  • Ensure that the CAN BUS network is not overloaded with unnecessary messages.

Consult Technical Support:

  • If the issue persists, contact John Deere technical support for further diagnostics and solutions.
  • Provide detailed logs of CAN BUS activity and any steps already taken to address the fault.

Note:

Maintaining a properly functioning CAN BUS network is crucial for the effective communication and operation of the vehicle’s electronic systems. Regular inspections and maintenance of the CAN BUS components can help prevent such faults.


Control Units: John Deere