Air Quality Sensor, Checking [2016-2018]: Check
Start the car with the climate control system automatic button in the ON position.
Spray a little rust solvent or windshield washer fluid from a spray bottle in the area around the air quality sensor.
NOTE:
Only spray a little.
If the air quality sensor and the other electronics are fault free, the damper for the air intake should close within a short period of time.
If the air quality sensor is fault free, the damper will gradually open after approximately 15 seconds.