Hyundai Genesis (DH): Cooling System / Thermostat Troubleshooting

Troubleshooting
Symptoms
Possible Causes
Remedy
Coolant leakage

    Removal and Installation     Removal of the thermostat will have an adverse effect, leading to lowered cooling efficiency. Do not remove the thermostat, even if the engine tends to overheat.

    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 .

    Other information:

    Hyundai Genesis (DH) 2013-2016 Service Manual: In-car Sensor Repair procedures

    I

    Hyundai Genesis (DH) 2013-2016 Service Manual: Auto Defogging Actuator Repair procedures

    Inspection 1. Turn the ignition switch OFF. 2. Disconnect the auto defogging connector. 3. Verify that the auto defogging actuator operates to the open position when connecting 12V to terminal 3 and grounding terminal 4. Verify that the auto defogging actuator operates to the close position when connected in reverse.

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