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Home >> Chevrolet >> 1980 >> Luv 4WD >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Auxiliary Emission Control Systems >> Catalytic Converter And Over-Temperature Control System >> Testing >> THERMO Controller
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THERMO Controller

If thermo controller is okay, warning light and buzzer will operate when ignition key is in "ON" position. Light and buzzer will go off automatically after a few seconds. If they do not activate initially, check wiring. If okay, replace thermo controller.