Checking the Air Quality Sensor

Fig 1: Identifying Climate Controls

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Start the car engine with the ECC automatic button in the ON position.

Fig 2: Identifying Quick Rust Penetrator Sprayed On Air Quality Sensor Opening

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Spray quick rust penetrator 1161422 into the opening for 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 very soon.

Fig 3: Identifying Open Air Intake Damper

Courtesy of VOLVO CARS OF NORTH AMERICA.

If the air quality sensor is fault free, the damper for the air intake will gradually open after approximately 15 seconds.