The Toledo Car Diagnosis center at Expressway Mechanic on Duty has the latest diagnostic equipment and we can tell you why your Check Engine Light has suddenly acted up. Car Diagnosis isn’t as simple as getting a code and buying a part because all the code tells you is the symptom–it’s up to the mechanic to figure out the cause. That’s where an experienced mechanic at the the Toledo Car Diagnosis center comes to the rescue. Is your car failing to start? You can’t figure out if it’s the battery; the starter, the alternator or some other electrical problem. We can isolate the problem and repair the component that is causing the problem with proper diagnostics before we repair the car. A correct diagnosis will save you money!