Toyota, the idle speed is unstable after changing the battery. How to solve it?

This series of Toyota cars may have "unstable idle speed" after power failure, such as replacing batteries and cleaning the throttle. Because the memory effect of ECU can not adaptively match the existing value after power failure (adaptive adjustment due to environmental, temperature, emission and other reasons), it needs to be re-matched. There are various troubleshooting methods, which can generally be solved by "manual adjustment, computer recovery or other recovery methods". A. Manual operation can be resumed by opening ETCS or EFI that controls the throttle valve, depending on the fuse of the vehicle model for a period of time, for example, about two or three minutes.