Engine, transmission & hybrid system diagnostics

This type of diagnostics focuses primarily on the electronic systems of the vehicle. Modern engines, transmissions, and hybrid systems are controlled by multiple electronic control modules that constantly communicate with each other. When a Check Engine light appears, the vehicle has starting problems, unstable engine operation, transmission faults, or hybrid system warnings, computer diagnostics are required. During the inspection, professional diagnostic equipment is used to read fault codes, analyze system parameters through live data, and evaluate sensors, actuators, and electronic control modules. For example, on BMW vehicles the Valvetronic system can be tested, while hybrid vehicles allow monitoring of electric motor performance, battery condition, and inverter operation. This approach helps accurately identify the direction of the fault and prevents unnecessary replacement of functioning components.