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Home >> Infiniti >> 2003 >> Q45 >> Repair and Diagnosis >> External Pages >> Different car >> Section 201 (Engine Control System) >> DTC P1217: Engine Over Temperature >> Description >> Component Description
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Component Description

WARNING: This page is about a different car, the 2004 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.

Cooling Fan Speed Control Solenoid Valve 

The cooling fan speed control solenoid valve uses a ON/OFF duty to control the pressure of the cooling fan fluid from the cooling fan pump. This solenoid valve is moved by ON/OFF pulse from the ECM. The longer the ON pulse is sent to the solenoid valve, the lower speed the cooling fan operates.

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