Hyundai Santa Fe (DM): 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 |
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