Kia Optima: Active Air Flap(AAF) Description and Operation
| Description |
The AAF (Active Air Flap) is located between radiator grille
and radiator, and consists of an actuator and 6 air flaps. The system
receives information from EMS, FATC, TCU, MCU and LDC via CAN
communication . With this information, the AAF controls the motor
properly then the air flaps adjust air flow from radiator grille.
During high speed driving, it will reduce the air resistance
by closing the air flaps. This improves the fuel efficiency and enhance
the driving stability. If overheat occurs, the system will open the air
flaps to drop the temperature.
During the A/C operation, the system will open the air flaps
to maintain the refrigerant pressure.The system will close the air flaps
to warm up the engine rapidly during cold start.
Specifications
| Items | Specifications |
| Operating temperature | -22~185°F (-30~85°C) |
| Operating voltage | DC 9~16V |
| Rated voltage | DC 12V |
| Rated current (No load) | 300mA or less |
Thermostat Troubleshooting
Troubleshooting
SymptomsPossible CausesRemedyCoolant leakage
•
From the thermostat gasket
Check the mounting bolts
•
Check the torque of the mounting bolts
•
Reti ...
Active Air Flap(AAF) Components and Components Location
Components
1. Air duct2. Cover3. Actuator assembly4. Loader5. Flaps6. Link7. Housing
...
See also:
Electric Parking Brake (EPB) Components and Components Location
Components
1. EPB Unit2. EPB Switch3. Brake Caliper 4. EPB Warning Lamp5. AUTO HOLD Lamp
...
Inspection
1.
Turn ignition switch OFF.
2.
Disconnect the oil temperature
sensor connector.
3.
Measure resistance between sensor
signal terminal and sensor g ...
Cylinder Head Components and Components Location
Components
1. Camshaft bearing cap2. Camshaft front bearing cap3. Exhaust camshaft4. Intake camshaft5. Exhaust CVVT assembly6. Intake CVVT assembly7. Exhaust camshaft upper bearing8. Exhaust cams ...
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