hks not silly , they have made a very simple gadget hard to use for a reason ... cose they want the $$$$$$$$$$$$$$ for any tuning/diagnosis/problems... i had a problem on my controller with one of the scroll buttons not responding at all , i sent dozens of emails direct to hks through hks hokkaido and x-speed to try and buy a new controller and basically they told me each system is a one off build you cannot buy just a controller .. you have to buy a whole new system (i have the emails to prove it ) , $12500 please ..
i told them to go f##k themselves ..
ditch the entire tuning side of the system it's crap , use a m800.