Take a look at this thread. I used relay's and in line fuse holders that are controlled by a remote control key fob with on & off button's. This circuit just basiclly turns off the TC & ESC,(stability control). No problem with limp mode or anything, just click the fob and it's off, click it again and it's on.
https://www.crossfireforum.org/forum...ad.php?t=19977