Kia Niro: Cooling System / Active Air Flap (AAF) Description and operation

Kia Niro 2017 (DE HEV) Service Manual / Engine Mechanical System / Cooling System / Active Air Flap (AAF) Description and operation

Description

The system receives information from ECU, FATC, TCU, MCU and LDC via CAN communication . With this information, the active air flap (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)
70 mA or less

Water Temperature Control Assembly Repair procedures
Removal and Installation Water Temperature Assembly    • Be sure to read and follow the “Gen ...

Active Air Flap (AAF) Schematic diagrams
Schematic Diagram ...

Other information:

Kia Niro 2017 (DE HEV) Service Manual: General safety information and caution
Safety Precaution Precautions to take before servicing high voltage system    Since hybrid vehicles contain a high voltage battery, if the high voltage system o ...

Kia Niro 2017 (DE HEV) Service Manual: Fuel Pump Repair procedures
Inspection [Fuel sender] 1. Turn the ignition switch OFF, and then remove battery (-) terminal. 2. Remove the fuel pump assembly. 3. Using an ohmmeter, measure the resistance between terminals 1 and 6 of sender c ...

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