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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.

1 | ECT sensor
2 | Vehicle speed signal
3 | Refrigerant pressure switch (Medium pressure switch)
4 | MAF sensor
5 | Refrigerant pressure switch (Low pressure switch, high pressure switch)
6 | CKP sensor
7 | BARO sensor
8 | Ignition switch
9 | APP sensor No.1, No.2
10 | Fan control module