I found my oil on min a few weeks back and the dash wasn't telling me the oil was low. I wasn't sure if it was just down to it not being low enough. When I dropped my oil for an oil change, I turned the ignition on and pressed check. Everything passed. My car never throws a check fault if a bulb it out or if oil is low. Can these be disabled? Oddly enough, it doesn't register right turns either. Maybe a faulty wire?