Camry CE Sedan V6-3.0L (1MZ-FE) (1998)
Radiator Cooling Fan Temperature Sensor / Switch: Testing and Inspection
No.1 Engine Coolant Temperature (ECT) Switch
ECT Switch No.1
1. Drain engine coolant.
2. Remove Engine Coolant Temperature (ECT) switch.
3. Inspect ECT switch.
(a) Using an ohmmeter, check that there is no continuity between the terminals when the coolant temperature is above 98°C (208°F).
If there is continuity, replace the switch.
(b) Using an ohmmeter, check that there is continuity between the terminals when the coolant temperature is below 88°C (190°F).
If there is no continuity, replace the switch.
4. Reinstall ECT switch.
5. Refill with engine coolant.