Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Climate Control Exhaust Gas Sensor: Testing and Inspection

A.Q.S (AIR QUALITY SENSOR)

INSPECTION

1. The A.Q.S sensor, located at the front of the condenser fan, detects hazardous elements in ambient air, and provides output signals to the control module.
2. It will detect sulfurous acid gas, carbon di oxide, carbon monoxide, hydrocarbon and allergen.




SENSOR OUTPUT