Sentra Sedan L4-1597cc 1.6L SOHC (E16S) (1986)
Radiator Fan Thermal Switch: Description and Operation
DESCRIPTION
The electric cooling fan is controlled by a thermo switch, a relay and on models equipped with A/C, an air conditioning relay. When coolant temperature
reaches approximately 194°F, the thermo switch contacts close, actuating the fan relay which operates the fan motor. During periods of A/C operation,
the radiator cooling fan and the condenser cooling fan will operate regardless of coolant temperature. When coolant temperature drops below a
predetermined temperature, the switch contacts opens, shutting off the electric cooling fan.