Coolant Temperature Switch Test

Disconnect connector from coolant temperature switch located in thermostat housing. With coolant temperature less than 200°F (93°C) for Capri or 194°F (90°C) for Festiva, check continuity between ground and coolant temperature switch. Ensure continuity exists. Start engine and allow coolant temperature to reach 200°F (93°C) for Capri or 207°F (97°C) for Festiva. Check continuity between ground and coolant temperature switch terminal. Continuity should NOT be present. If switch does not test as indicated, replace switch.