ECU Reset on 2004 Toyota Camry XLE 2.4L

I know what you mean and I' ve clear codes frrom the ECU/ECM with my scan tool. What I am trying to find out is how to reset the ECU/ECM to original factory settings and allow it to re-learn. I' ve been told that there are several ways to do this. For example: 1) pull out the EFI & other fuses for a few minutes that give power to the ECU computer. 2) remove battery cable (negative and or positive not sure which) for a few minutes, press the horn or brake pedal to drain ECU/ECM capasitor etc. Once the ECU/ECM is reset, you let idle for a few minutes and drive it to allow it to re-learn, idle speed, driving habits etc... My question once again is what is the correct and proper way to reset the ECU/ECM? Thanks again for your help. Looking forward to your professional advice.

proper way is to turn the ac on drive the car for 10 minutes turn ac off drive another 10 let idle for 20 at a 2200 rpm