Gone are the days when a vehicle repair technician/mechanic only had to understand the engine, transmission and suspension systems of a car to diagnose it. All vehicles since year 2000 have been equipped with an in-built computer to manage the vehicle controlled systems. The post year 2000 mechanic is supposed to fully comprehend the modern vehicle electronic system.
Individuals willing to pursue this to open service businesses will capture a market that has a lot of growth potential.
Diagnostic tests can reveal problems within a car's engine, transmission, exhaust system, brakes, and other major components, as well as performance issues with the fuel injector, air flow and coolant, ignition coils, and throttle.