CA941B er en feil som er lagret i BMW-ens minne (en ISTA-feilkode, ikke en standard OBD-II P-kode).
Hva det betyr: Message timeout in the vehicle-information network (BMW infrastructure): a module didn't receive expected vehicle-info data in time — usually the head unit (HU-H), surround-view camera or driver-assist. Symptoms: iDrive glitches, 360° cameras not loading, assist features briefly unavailable. Most often a software hiccup or a voltage drop (weak battery).
