AQS signal (only ECC)
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The parameter displays the signal from the air quality sensor (AQS). The climate control module (CCM) uses the signal to regulate the damper motor module (DMM) recirculation.
Off = no increase or reduction in pollutant level.
Level 1 = slow increase in pollutant level.
Level 2 = medium increase in pollutant level.
Level 3 = rapid increase in pollutant level.