Hyundai Santa Fe: Cooling Fan. Description and Operation - Cooling System - Engine Mechanical SystemHyundai Santa Fe: Cooling Fan. Description and Operation

Description

Control the cooling motor voltage in according to the duty(300Hz) of ECM.
[ECU → PWM Input Signal(SI : 300Hz)]

SI Duty
Motor Voltage (V)
 
10%
0

30%
4.1
± 0.65
60%
8.2
± 0.66
70%
9.57
± 0.67
90%
12.5


[Cooling Fan Operation Condition]
A/C Switch
A/C Pressure (Kgf/cm² G)
Vehicle Speed (Km/h)
Coolant Temp (°C)
Duty (%)
OFF

V < 45
98 above
35
45 ≤ V < 80
101 above
40
80 ≤ V
105 above
80
ON
A/C Pressure < 6
ALL
105 above
90
6 ≤ A/C Pressure < 12
V < 45
82 above
30
45 ≤ V < 80
96 above
40
80 ≤ V
96 above
60
12 ≤ A/C Pressure < 15.5
V < 45
101 above
70
45 ≤ V < 80
-30 above
40
80 ≤ V
82 above
60
15.5 ≤ A/C Pressure
V = 0
-30 above
60
0 < V
-30 above
90


Cooling Fan. Components and Components Location
Components 1. Upper air guard 2. PWM module 3. Cooling fan shroud 4. Fan motor 5. Cooling fan ...

Cooling Fan. Specifications
Specification Fuction Specification Maximum Drive Capability 250 W 21.0 + 10% A Input Signal Frequency 300 ± 5% Duty 10, 30 ~ 90 % Voltage level HI 0.7 V above LOW 0 ~ 1.9 V ...

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