What is an Onboard Diagnostic System (OBD II)?

What is an Onboard Diagnostic System (OBD II)?  - Emission inspection readiness - Maintaining your car - Maintenance and specifications - Volvo XC60 Owners Manual - Volvo XC60

OBD II is part of your vehicle's computerized engine management system. It stores diagnostic information about your vehicle's emission controls. It can light the Check Engine light (MIL) if it detects an emission control "fault." A "fault" is a component or system that is not performing within an expected range. A fault may be permanent or temporary. OBD II will store a message about any fault.

    See also:

    PARK BRAKE Parking brake applied
    This light will be on when the parking brake (hand brake) is applied. The parking brake pedal is located on the left side of the driver's footwell, see page 79 for more information. Canadian mode ...

    C70 in the Market
    The C70 is a good luxury convertible, but it's in a class where good might not be enough. Competitors — notably the Mercedes-Benz E-Class — do a better job of protecting those in the car from buff ...

    Driving dynamics: steering, brakes and transmission
    The five-cylinder petrol and diesel engines (2.5T, 2.4D and D5) have a six-speed manual gearbox which can be upgraded to the six-speed Geartronic transmission which is standard on the V8 engine. V ...