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:
On/Off button
To activate the system:
1. Turn the ignition key to position I.
NOTE
If you switch off the ignition while the audio
system is on, the system will be on when the
ignition is switched on again. ...
Deactivation
Move the gear selector from R to another position. There is a slight delay in
the PAC system, which means that the view from behind the vehicle will remain on
the screen for approximately 15 secon ...
Cold weather precautions
If you wish to check your vehicle before the approach of cold weather, the following
advice is worth noting:
Make sure that the engine coolant contains 50 percent antifreeze. Any other
mixtur ...
