Impulse Hatchback L4-1809cc 1.8L DOHC (4XF1-W) (1992)
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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.
On 1989 models, allow temperature of the water to drop to between 162°F-183°F. No continuity should exist in this range.
7.
On 1990-92 models, allow temperature of the water to drop to between 167°F-178°F. No continuity should exist in this range.
8.
On all models, if thermo switch does not operate as specified, replace thermo switch.
