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ELECTRICAL FAN CONTROL BLOCK DIAGRAM [L8, LF, L3]

id0140a5103900
• 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 cooling fan relays to control the cooling fan rotation speed.

1 | ECT sensor
2 | TP sensor No.1, No.2
3 | Vehicle speed signal (CAN)
4 | A/C on request signal (CAN)
5 | Battery voltage
6 | Fan control relays