I have a squirrel cage fan used in a car about 6" (15 cm) diameter. It is a part of the climate control seat blowing air to the seat bottom and back. The control board is built in the fan assembly. 4 wires are soldered to it, M+, M-, Control and Tach. My goal is just to make it run even at one speed. I suppose M+ and M- are for 12V power. What is Control? Thank you.
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