Volvo XC60: How do states use OBD II for emission inspections?
Many states connect a computer directly to a vehicle's OBD II system. The inspector can then read "faults." In some states, this type of inspection has replaced the tailpipe emission test.
What is an Onboard Diagnostic System (OBD II)?
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 ...How can my vehicle fail OBD II emission inspection?
Your vehicle can fail OBD II emission inspection for any of the following reasons. • If your Check Engine (MIL) light is lit, your vehicle may fail inspection. • If your vehicle's Check Engi ...See also:
Front Fog Lamp Light
The front fog lamp light comes on when the fog lamps are in use. The light goes
out when the fog lamps are turned off. See Fog Lamps on page 6‑4 for more information. ...
Headlamp levelling
Except for vehicles with discharge headlamps
The angle of the headlamp beam varies depending upon the load carried by the
vehicle. The headlamp levelling switch can be used to adjust the headlamp ...
Water deposits
The climate control system removes moisture
from the air and deposits the excess water
beneath the vehicle. Puddles may form but this
is normal and is no cause for concern. ...