The engine radiator and air conditioner condenser cooling system consists of a radiator prewired system interfaced with the engine service lead, including relay boxes, resistors and two fans operated at three different speeds according to the engine coolant temperature and air conditioner coolant pressure levels.Both signals are managed by sensors (temperature and linear) that inform the engine control unit of coolant circuit status. The control unit manages individual or combined activation of both fans in accordance with its own internal software.The fan power supply lines are protected by two special fuses (fuse rating varies according to the vehicle engine version and specification) that are located in the engine compartment junction unit.