PL3 000639.12 – Vehicle CAN Bus (500 kBd), High Error Rate
PL3 000639.12 (PL3 639.12)
Code: 000639.12
Shortcode: 639.12
Description:
This diagnostic trouble code is generated when the control software is unable to process all CAN Bus messages received at a rate of 500 kBd, indicating a high error rate. This can be due to a CAN Bus overload or an internal control unit fault.
Reaction:
The control software may exhibit limited or no functionality when this fault is detected.
Recommendations:
Inspect CAN Bus Load:
- Check for excessive traffic on the CAN Bus. Disconnect non-essential devices to reduce load and monitor for improvement.
Examine Wiring and Connections:
- Inspect CAN Bus wiring and connections for damage, loose connections, or corrosion. Repair or replace as necessary.
Test Control Unit:
- Test the control unit for internal faults. Replace the control unit if it is found to be defective.
Update Control Software:
- Ensure the control software is up-to-date with the latest version to prevent communication errors.
Note:
A high error rate on the CAN Bus can severely impact vehicle functionality. Address this issue promptly to restore proper operation.