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:
Sensors
The sunlight sensor on the dashboard and passenger
compartment temperature sensor in
the ECC control panel should not be covered
in any way as this could cause incorrect information
to be sent to ...
Getting started
Voice control button on the steering wheel ...
How TSA works
Once swaying has begun, it can be very difficult
to stop, which makes it difficult to control
the vehicle and trailer.
The TSA system continuously monitors the
vehicle's movements, particularly ...