Systems-based diagnostics, professional equipment, high-voltage safety and the combined use of computer, mechanical, road and bench testing.
Today’s vehicles combine mechanical parts, dozens of sensors, control units and complex software, so a minor issue can affect the whole system. Diagnostics is therefore much more than reading trouble codes.
- Treat the vehicle as a network of interconnected systems
- Use professional scan tools, test benches and component testers
- Stay current with equipment that receives software updates
- Follow high-voltage safety protocols on electric and hybrid vehicles
Accurate results come from combining OBD-II computer diagnostics, mechanical measurements such as compression and pressure, road testing, and bench testing of components off the vehicle. Today’s diagnostic technician blends electrical, IT and mechanical skills and needs continuous training.