A sequence error means the expected order of transport frames was not seen. The cause may lie in the exchange, the recording or the way traffic was filtered.

What to check next

Check whether the raw log itself reports dropped frames and whether both directions were captured. Compare the frame sequence with the tool’s error time. This prevents a logger limitation from being presented as a confirmed vehicle-network fault.

Useful information for an enquiry

Send the unfiltered recording, logger status and the diagnostic application’s report.

A missing entry in one recording is not proof that the vehicle failed to transmit it. Capture integrity must be established.

Speak to AXION

For CAN-bus and vehicle-network diagnostics, send your vehicle details and fault report. Workshop assessment is in Didcot, Oxfordshire. Suitable postal or remote work is confirmed before booking.

Technical background from python-can-isotp. The referenced design explains the principle; the vehicle-specific procedure determines the repair.