What is the correct term for diagnosis in automobiles?

I have to provide an English translation of my bachelor thesis' title and I couldn't find a term in the dictionary. At the moment I call it "Development of a car diagnosis application", but I am unsure if "car diagnosis" is the correct term. Maybe "vehicle diagnosis" or "automotive diagnosis" or ... ?


Solution 1:

Usually the adjective diagnostic is used instead, for example 'vehicle diagnostic tool'.