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Home >> Saturn >> 2000 >> SC2 Automatic, MP6 >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Cooling Fan >> Engine Cooling Fan System - Troubleshooting >> Electric Cooling Fan Circuit Diagnosis >> 1.0L & 1.3L Metro & Firefly (CANADIAN) >> Description

1.0L & 1.3L Metro & Firefly (CANADIAN): Description

Cooling fan is controlled by Powertrain Control Module (PCM) through cooling fan relay based on inputs from engine coolant temperature sensor. PCM turns on the cooling fan when coolant temperature sensor rises above 208°F (97.5°C) and turns off cooling fan when coolant temperature sensor drops less than 199°F (92.5°C). PCM controls cooling fan motor by grounding cooling fan relay control circuit which closes fan relay contacts.