A power management system for a snowmobile is provided to efficiently manage power supplied to a cooling fan and to a heater on the snowmobile. The power management system can be incorporated into a control unit of the snowmobile and can be comprise of a fan motor control section for activating the fan motor by supplying electric power from a generator (or a battery). The fan motor control section operates the fan motor in various operating conditions in accordance with the value detected by a temperature sensor associated with a fluid cooling system of the snowmobile's engine. The power management system can also include a heat control section for controlling the electric power supplied by the generator (or a battery) to the heater by adjusting it in accordance with such parameters as maximum power levels associated with preset temperature settings or variable temperature settings, an engine speed sensor signal, and the operating condition of the fan motor.

 
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