RAV4 2-Door 4WD L4-2.0L (3S-FE) (1997)
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Radiator Cooling Fan Temperature Sensor / Switch: Testing and Inspection
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 93° C (199° F).
(b) Using an ohmmeter, check that there is continuity between the terminals when the coolant temperature is below 83° C (181° F).
If continuity is not as specified, replace the switch.
4. Reinstall ECT switch.
5. Refill with engine coolant.
6. Start engine and check for coolant leaks.