•  The power MOS FET controls the rear blower motor rotation speed.

•  The power MOS FET controls the supply voltage to the rear blower motor based on the gate voltage sent from the rear climate control unit, and adjusts the fan rotation speed (airflow volume).

•  The power MOS FET is installed to the rear A/C unit.

•  A transistor-type power MOS FET has been adopted and it is equipped with three electrodes, a source, a gate, and a drain.

•  The resistance between drain and source changes according to the gate voltage.

•  When the gate voltage increases, the resistance between drain and source decreases, allowing the current to flow easily. Therefore, the rear blower motor rotation speed increases.

•  When the gate voltage decreases, the resistance between drain and source increases, making current flow difficult. Therefore, the rear blower motor rotation speed decreases.

•  Not applicable