Conversion to Std Meriva 2004 Easytronic

Good night for the forum, I have a problem with a 2004 Easytronic Meriva, I will turn it into a standard, I want to ask if a forum friend has already made this conversion I will thank you to rely on how to bridge the cables towards the computer to record the functions of the swich, ABS, reverse and stop lights or if they had the electrical diagram of this minivan.
Thanks for your attention to this message, greetings to all