Method for diagnosing possible faults in vehicle components comprises memorizing distance traveled when symptom occurs then memorizing either fixed distance, when symptom is looked for again, or distance after which it disappears

摘要

The method for diagnosing possible faults in vehicle components, e.g. a fuel injector (2.1) or gearbox (2.2), comprises memorizing the distance traveled when a symptom linked to the possible failure occurs. A second distance is memorized, which is either a fixed distance, when the symptom is looked for again, or the distance after which it disappears. Independent claims are included for: (A) a computer (C) programmed to carry out the method; (B) an engine (1) fitted with the computer; and (C) a system comprising the engine and a separate diagnostic unit (4).