ELECTRICAL FAN CONTROL BLOCK DIAGRAM [L3 Turbo]
id0140b6103900
• The PCM determines the engine operation conditions based on input signals from the sensors, calculating the optimum fan motor rotation speed as the fan motor drive duty ratio, and sends a signal to the fan control module to control the cooling fan rotation speed.
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1
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ECT sensor
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2
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Vehicle speed signal
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3
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Refrigerant pressure switch (Medium pressure switch)
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4
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MAF sensor
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5
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Refrigerant pressure switch (Low pressure switch, high pressure switch)
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6
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CKP sensor
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7
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BARO sensor
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8
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Ignition switch
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9
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APP sensor No.1, No.2
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10
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Fan control module
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