How to adjust the idle speed of lexus es350 washing throttle?

Idle speed control is controlled by the motor that directly controls the throttle, and the throttle opening of part load is realized by the cable. After the throttle body is cleaned, the self-learning value in the engine controller must be cleared (use SCAN 100, or X43 1, preferably SCAN 100 made by Daewoo, Korea), 2 .3. Turn on the key 1 min without stepping on the accelerator, and then turn off the power/Kloc-. 4, don't step on the accelerator, after the engine starts, let it idle naturally 15 minutes, so as to complete the idle self-learning; If self-learning is not completed, the idle speed of the engine cannot be controlled. Another possibility is that the throttle body is not installed properly when it is put back, and the idle speed will continue to be high if air leaks in.