We have only ever seen the ATC Automatic Temperature Control system, manufactured by Nippon Denso, fitted as standard in all variants of the Discovery series II. So the unit could well have been custom designed for this application. The main control / display unit is quite obviously of eastern origin with its large custom graphical LCD display and multifunction usage. There are many secret tricks and features possible with this ECU and for security reasons we have not listed them here. Also it should be noted that the help pages are not installed with the system unless ATC has been licensed on the Vehicle server.
For more detailed information about this ECU please click here.