Computer Diagnostics: Not every vehicle issue is easy to diagnose. Sometimes a malfunctioning part can be so far within the vehicle, it could take hours to take the car apart just to diagnose the issue. This can result in huge repair bills as your mechanic checks a difficult–to–reach part that may not even be the problem. Thankfully, modern technology has advanced by leaps and bounds. Now, On-Board Diagnostics Units (OBD’s) keep a constant eye on many of these tough–to–reach parts. OBD’s run constant checks on parts all throughout your vehicle. It can monitor your engine and give repair technicians specific codes that tell them how to repair your vehicle.