I recently changed the Radiator Relay of my Yamaha R15 v3 since the Ra

I recently changed the Radiator Relay of my Yamaha R15 v3 since the Radiator was not turning on and the engine overheated light showed up. And it fixed that problem. But it created another problem. The Radiator is never turning off, it keeps running continuously. My Service Center People says the ECU is malfunctioning and it need replacement. Experts please help. What should I do?

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