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Coolant Temperature Switch

Using a DVOM, check for continuity between coolant temperature switch terminals. For coolant temperature switch location, see Figure. See COOLANT TEMPERATURE SWITCH CONTINUITY  table. If coolant temperature switch continuity is not as shown, replace switch.

COOLANT TEMPERATURE SWITCH CONTINUITY

Temperature Continuity
Below 181°F (83°C) Yes
Above 199°F (93°C) No