Sentra L4-1597cc 1.6L SOHC (E16S) (1985)
Radiator Fan Thermal Switch: Testing and Inspection
Fig. 1 Testing thermo switch (typical)
THERMO SWITCH
Testing
The thermo switch is located in the radiator lower tank.
1.
Remove thermo switch as outlined above.
2.
Connect suitable ohmmeter across switch terminals, then immerse lower part of switch in water, Fig. 1. Ohmmeter should indicate an open circuit.
3.
Place thermometer in water and heat. When water temperature reaches approximately 193°F, switch contacts should close and the ohmmeter
should indicate continuity.
4.
If switch does not operate properly, replace it.