Cooling Fan Control
WARNING: This page is about a different car, the 2012 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
IPDM E/R outputs cooling fan control signal (PWM signal) to the electrically-controlled cooling fan coupling according to the status of the cooling fan speed request signal received from ECM via CAN communication. Refer to "COOLING FAN CONTROL: SYSTEM DIAGRAM ".