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Home >> Mazda >> 1986 >> 626 LX, 4D Hatchback, 2.0 1, Standard >> Repair and Diagnosis >> Engine Performance >> System >> EFI Control System >> Testing >> Coolant Temperature Switch
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Coolant Temperature Switch

Remove coolant temperature switch from radiator. Place switch and thermometer in water. Connect ohmmeter to switch and gradually heat water. Continuity between switch terminals must exist above 59-66°F (15-19°C).