FAN CONTROL MODULE [SKYACTIV-G 2.0]
id0112h4101200
Purpose, Function
• The fan control module operates by receiving the signal from the PCM to supply power to the cooling fan motor.
Construction
• Fan control module is installed on the radiator cowling.
Operation
• The fan control module allows continuously variable control of the cooling fan motor rotation rate, reducing fan operation noise and power consumption.
• Based on the input signals from the control parts, the cooling fan may remain operational for several seconds or minutes after the ignition is switched off. (See
ELECTRICAL FAN CONTROL [SKYACTIV-G 2.0].)
Fail-safe
The fan control module has a power supply function to operate the cooling fan motor and the following protection functions.
1. Over-current fail-safe
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― If current to the cooling fan motor exceeds the specified value, the fan control module stops the cooling fan motor for a specified period of time.
2. Over heat fail-safe
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― If the internal area of the fan control module exceeds the specified temperature, the fan control module stops the cooling fan motor for a specified period of time.
3. Input signal open circuit fail-safe
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― If there is an open circuit in the wiring harness between the PCM and the fan control module, the fan control module stops the cooling fan motor.
4. Reversed polarity fail-safe
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― If there is a reversed power connection, the fan control module incorporates protection against reversed polarity. The motor reacts to reversed connections with unregulated, high-speed rotation in the opposite direction.
