How long does it take for a car's computer to reset after power disconnection?

[KingstonMarie]

It takes 5 to 10 minutes for a car's computer to reset after power disconnection. The vehicle computer, also known as ECU, is generally used in fuel-injected vehicles to control fuel injection quantity, air-fuel mixture ratio, etc. The ECU is actually an electronic control unit, which consists of three parts: input circuit, microprocessor, and output circuit. The input circuit receives signals from sensors and other devices, filters and amplifies the signals, and then converts them into input levels of certain voltages. The signals sent from sensors to the ECU input circuit include both analog and digital signals. The analog-to-digital converter in the input circuit can convert analog signals into digital signals, which are then transmitted to the microprocessor.