The idea behind Climate Control is to maintain a steady preset temperature which is controlled by the occupants of the car, it’s a bit like setting the thermostat on your home central heating system to maintain a set temperature in your house but this one is more sophisticated. The cc system has a central processor located immediately behind the front display panel connected to the display by a ribbon that can be detached if the dash needs to be removed. The unit also controls the air distribution motors and the air temperature blend doors as well as processing signals and controlling the other components of the air conditioning system such as the compressor and Heater Blower Controller (HBC).
Google