CHECK ENGINE Malfunction indicatorlight

On-Board Diagnostics II (OBDII): As you drive, a computer called "OBDII" monitors your vehicle's engine, transmission, electrical and emission systems. The CHECK ENGINE light will light up if the computer senses a condition that potentially may need correcting. When this happens, please have your vehicle checked by a trained and qualified Volvo service technician as soon as possible.
A CHECK ENGINE light may have many causes.
Sometimes, you may not notice a change in your vehicle's behavior. Even so, an uncorrected condition could hurt fuel economy, emission cleanliness, and driveability.
Extended driving without correcting the cause could even damage other components in your vehicle.
Canadian models are equipped
with this warning light.
See also:
Scanning
SCAN automatically searches through the list of satellite channels. The search
will only be carried out in the selected category, see page 214 for more detailed
information on the scan function. ...
Messages
When a warning, information or indicator symbol
comes on, a corresponding message
appears on the information display. An error
message is stored in a memory list until the
fault is rectified ...
Driving dynamics: engines
The Volvo S80 is the best handling, most agile, and best-performing big Volvo
saloon ever. New versions of Volvo's renowned five-cylinder common-rail diesel
engines produce excellent fuel economy ...
