COOLING FAN CONTROL MODULE CONSTRUCTION/OPERATION [L3]
BUE011215025N01
Construction
• The cooling fan control module has been installed to the radiator cowling.
Operation
• The fan control module has a power supply function for driving each of the fan motors and the following protection functions:
1. Over-current protection
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- If the current value to the fan motor is exceeded, the function sets the value to the set duty value.
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- The fan motor is returned to normal control when the current value to the fan motor decreases to the certain value.
2. Over-heating protection
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- When the internal temperature of the fan control module is too high, the function sets the value to the set output duty value.
3. Input signal open circuit protection
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- If there is an open circuit in the wiring harness between the PCM and fan control module, the function sets the value to the set output duty value.
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1
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Fan control module
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2
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Cooling fan
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3
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Additional fan
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1
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PCM
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2
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Fan control module
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3
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Cooling fan motor
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4
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Additional fan motor
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5
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IC
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6
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Power supply of constant voltage
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