A completed data transfer and an accepted software image are different stages. A controller with secure boot may require software authenticity and integrity checks before running it.

How to narrow it down

Review the approved programming result and any final validation messages. Confirm the hardware identity and software application through authorised sources. If the unit remains in a recovery state, preserve the log and use the supported recovery route rather than trying unrelated images.

What to include with the fault report

Send the module identification, approved software reference and complete programming log.

This is an authorised software diagnosis. Security checks must not be bypassed to make an incompatible or untrusted image run.

Speak to AXION

For module programming and coding support, 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 NXP. The referenced design explains the principle; the vehicle-specific procedure determines the repair.

Related reading — UDS response 0x14 when the requested reply is too large. Browse all vehicle-electronics diagnostic notes or return to the repair library.