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.
See also:
Operating
Operating the power windows
1 Manual up/down
2 Auto up/down.
All power windows can be operated using the
control panel in the driver's door. The control
panels in the other doors only operate ...
Replacing the battery
1. Switch off the ignition.
2. Wait at least 5 minutes after switching
off the ignition before disconnecting the
battery so that all information in the vehicle's
electrical system can be stored ...
Setting a time interval
The set time interval to vehicles ahead can be
increased by pressing and decreased
by
pressing . The current time interval
is shown
briefly in the display following adjustment.
Different ...
