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Home >> Infiniti >> 2005 >> FX45 AWD V8-4.5L (VK45DE) >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - Cooling System >> Radiator Cooling Fan Control Module >> Description and Operation
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Radiator Cooling Fan Control Module: Description and Operation

ENGINE OVER TEMPERATURE

Description

SYSTEM DESCRIPTION




Cooling Fan Control
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/MIDDLE/OFF].




Cooling Fan Operation




Cooling Fan Relay Operation

COMPONENT DESCRIPTION




Cooling Fan Motor
The cooling fan at each speed when the current flows in the cooling fan motor as given.
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