What is the issue with motorcycle ECU failure?

[Menezes]

Motorcycle ECU failure: Short circuit or open circuit in the ECU voltage regulator circuit, burnt components, etc., causing abnormal ECU power supply, which prevents the ECU from functioning properly. ECU failure symptoms: No start: The vehicle cannot start. No ignition: No ignition. The fuel pump operates normally but does not inject fuel, and the fuel pump relay engages normally. No fuel injection: There is spark, but no fuel injection. Internal ECU program failure (incorrect fuel injection program). No high-voltage spark: Fuel injection is normal, but there is no high-voltage spark. Internal ECU program failure (incorrect ignition program). Unable to start: The engine cannot start, stalls immediately upon starting, and lacks idle sensation. ECU working principle: In the ECU, the CPU is the core component, responsible for computation and control functions. While the engine is running, it collects signals from various sensors, performs computations, and converts the results into control signals to manage the operation of controlled components.