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.
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Settings
Press OK/MENU when a normal camera view
is displayed and make the desired settings.
Parking camera settings
• Mark Park Assist lines to display the sidelines
while backing up.
• Mark Distance i ...
Unlocking a channel
A channel's access code2 is required to unlock a channel.
Unlock all channels
This permanently removes all channels from the locked list and makes them available
for selection.
Temporarily un ...
Power steering fluid reservoir
The fluid level should always be between the
ADD and FULL marks.
Fluid type: Volvo synthetic power steering fluid
(Pentosin CHF 11S) P/N 1161529 or equivalent.
Replace: No fluid change requi ...
