TIQ 000639.12 (TIQ 639.12) – Vehicle CAN Bus (500 kBd), High Error Rate

TIQ 000639.12 (TIQ 639.12)

Code: 000639.12

Shortcode: 639.12

Description:

This error code indicates that an excessively high number of incorrect CAN Bus messages have been received. This suggests a general problem with the connection to the Vehicle CAN Bus operating at 500 kBd. Potential causes include faulty wiring, poor connections, or interference on the CAN Bus network.

Reaction:

When this fault is detected, the control software may exhibit limited or no functionality, affecting the overall performance of the vehicle.

Recommendations:

  • Inspect CAN Bus Wiring:
    • Check for any signs of damage, wear, or corrosion on the CAN Bus wiring.
    • Repair or replace damaged wires as needed.
  • Verify Connections:
    • Ensure all CAN Bus connectors are secure and free of debris or corrosion.
    • Clean and tighten any loose connections.
  • Check for Interference:
    • Identify and eliminate sources of electrical interference that may affect the CAN Bus.
    • Ensure proper grounding and shielding of CAN Bus cables.
  • Use Diagnostic Tools:
    • Utilize CAN Bus diagnostic tools to identify specific issues or locations of high error rates.
    • Address any identified problems accordingly.
  • Software Update:
    • Update the control software to the latest version to ensure compatibility and stability.

Note:

Regular inspection and maintenance of the CAN Bus wiring and connections can help prevent high error rates and ensure reliable vehicle communication.


Control Units: John Deere