Sentra Wagon FWD L4-1597cc 1.6L SOHC (GA16i) (1989)
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Radiator Fan Thermal Switch: Testing and Inspection
Fig. 28 Testing Thermo Switch
1. Remove thermo switch/sensor, refer to COMPONENT R&R PROCEDURES/THERMO SWITCH/SENSOR.
2. Connect suitable ohmmeter across switch terminals, then immerse lower part of switch in water, Fig. 28. Ohmmeter should indicate an open
circuit.
3. Place thermometer in water and heat. When water temperature reaches approximately 185°F, switch contacts should close and the ohmmeter
should indicate continuity.
4. If switch does not operate properly, replace it.
