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Home >> Nissan-Datsun >> 2011 >> Maxima S >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System - Introduction >> System Description >> Cooling Fan Control >> System Description >> System Description >> Notes

System Description: Notes

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The ECM controls the cooling fan corresponding to the vehicle speed, engine COOLANT temperature, refrigerant pressure, and air conditioner ON signal. The control system has 4-step control [HIGH/MIDDLE/LOW/OFF].

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