Reseting ECU what is this i hear about u need code for....

[atx]

Reseting ECU what is this i hear about u need code for like the cd player or something like that? Mabe they are talkn bout for the key unlock thing? Well i want to reset it but dont want to have to get a code and all that cause i doubt i have it.
thanks this may be dumb question

[pinoyesv6]

im guessing you're gonna disconnect the battery? if you disconnect it for a short period of time then you hsould be fine. if its a long time you're gonna have to put in the code for the radio.