Heated oxygen sensors

The heated oxygen sensors monitor the oxygen content of the exhaust gases. Readings are fed into a control module that continuously monitors engine functions and controls fuel injection. The ratio of fuel to air into the engine is continuously adjusted for efficient combustion to help reduce harmful emissions.
See also:
Resetting
If the battery has been disconnected, the auto open function must be reset so
that it will work properly.
1. Gently raise the front section of the button to close the window and hold
it for one s ...
Disconnecting an external device
The external device is automatically disconnected
from the audio system if it is moved out
of range. ...
Bulb specifications
NOTE
Please consult a Volvo retailer’s Parts
department for the most up-to-date specifications. ...
