UDS response 0x24 means the expected request order was not followed. It describes a diagnostic sequence issue rather than a component identity.

What to check next

Preserve the complete session log so the point of interruption can be established. Explain whether the tool reconnected, the procedure was restarted or another tester was used. Starting halfway through a guided operation can make the next response difficult to interpret.

Useful information for an enquiry

Keep the last completed step and the first rejected step together with the tool version.

Follow the approved recovery procedure. Do not repeat writes or erase operations merely to see whether the sequence will proceed this time.

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 py-uds. The referenced design explains the principle; the vehicle-specific procedure determines the repair.