Stylus L4-1809cc 1.8L DOHC (4XF1-W) (1993)
Radiator Cooling Fan Temperature Sensor / Switch: Testing and Inspection
1. Remove thermo switch from radiator.
2. Place temperature sensing portion of thermo switch in a container of water.
3. Connect ohmmeter onto thermo switch terminals.
4. Heat water.
5. When the temperature of the water reaches approximately 180°F-190°F, continuity should exist between thermo switch terminals.
6. Allow temperature of the water to drop to between 167°-178°F. No continuity should exist in this range.
7. If thermo switch does not operate as specified, replace thermo switch.