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Temperature Switch

Remove temperature switch to be tested. Suspend switch and thermometer in a container of water. DO NOT allow switch or thermometer to touch bottom of container. Check continuity between switch terminals while heating water. Ensure continuity only exist when temperature reaches specified temperature. See SWITCH CONTINUITY TEST  table. If continuity is not as specified, replace switch. If continuity is as specified, let switch cool. Continuity should continue to exist until temperature drops approximately 15°F (°C).

SWITCH CONTINUITY TEST

Application Temperature - °F (°C)
Accord
4-Cylinder
Radiator Fan Switch 196-203 (91-95)
V6
Radiator Fan Switch "A" 196-203 (91-95)
Radiator Fan Switch "B" 217-232(103-111)
Civic
Engine Coolant Temperature Sensor 196-203 (91-95)
CR-V
Radiator Fan Switch 196-203 (91-95)
Insight
Radiator Fan Switch 201-208 (94-98)
Odyssey
Engine Coolant Temperature Sensor "A" 196-203 (91-95)
Engine Coolant Temperature Sensor "B" 205-216 (96-102)
Prelude
Radiator Fan Switch 198-208 (92-98)
S2000
Cooling Fan Switch 196-203 (91-95)