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Home >> Infiniti >> 2004 >> I35 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System >> DTC P1217: Engine Over Temperature >> System Description >> Cooling Fan Control
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Cooling Fan Control

Fig 1: Displaying Cooling Fan Control System Description
G00787153Courtesy of NISSAN MOTOR CO., U.S.A.

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 3-step control [HIGH/LOW/OFF].

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