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Tiny Cooling Fan summary

Date: 2014-11-24   Click: 1366 Times

"Tiny Cooling Fan" Although only one motor, but also at high, low gear. Under normal circumstances, when you turn on the air A / C, when the air conditioning pump is working, then the fan motor operates in series with a fan resistor (measuring approximately 1.3Ω resistance around), resulting in low-speed operation. When the air conditioning pressure is high or the engine temperature is high, the 2nd relay, resulting in "Tiny Cooling Fan" motor ground wire directly to ground, not a series resistor allows the fan motor at high speed, in order to achieve high and low switch radiator fan motor. By the way, there are two fan motors Toyota Series models, with relays (series and parallel fan motor) to switch the fan to work, but now the new models is the engine ECU and cooling "Tiny Cooling Fan" ECU to adjust the current flowing into the fan to switch work.

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