Hello together, what causes could the message “Functional interference exhaust gas cleaning system” have everything? It is a Suzuki Swift (petrol) from 2007. Unfortunately, don’t know what kind of engine…estimate 1.4 or 1.6 l if there is. The yellow warning light glows in the instrument cluster. I suspect that maybe a marten might have eaten some cable (lambda probe etc.)?! I am grateful for every tip!!!!