TIA 000639.12 – 500 kBd Vehicle CAN BUS, High Error Rate
TIA 000639.12 (TIA 639.12)
Code: 000639.12
Shortcode: 639.12
Description:
This diagnostic trouble code (DTC) is generated when the control software receives too many incorrect CAN BUS messages or detects a general problem in the connection to the 500 kBd vehicle CAN BUS. A high error rate in CAN BUS communication can significantly impact vehicle performance.
Reaction:
Limited or no function of the control software due to communication errors, affecting overall vehicle diagnostics and operations.
Recommendations:
Inspect CAN BUS Wiring and Connections:
- Check all CAN BUS wiring and connectors for damage, corrosion, or loose connections.
- Repair or replace any faulty wiring or connectors.
Verify CAN BUS Termination:
- Ensure that the CAN BUS network is properly terminated at both ends to prevent reflection and communication errors.
- Check and adjust termination resistors if necessary.
Monitor CAN BUS Traffic:
- Use a CAN BUS analyzer to monitor traffic and identify sources of incorrect messages or high error rates.
- Address any identified issues such as faulty control units or devices on the network.
Update Control Software:
- Ensure the control software is up-to-date with the latest version provided by the manufacturer.
- Updates may include improvements for handling CAN BUS errors.
Consult Technical Support:
- If the problem persists, consult technical support for further diagnostic procedures or to identify any underlying issues with the CAN BUS system.
Note:
Regular inspection and maintenance of the CAN BUS network can prevent communication errors. Ensuring all devices on the network are functioning correctly and within specifications is crucial for reliable operation.