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 Engine light was lit, but went out without any action on your part, OBD II will still have a recorded fault.
Your vehicle may pass or fail, depending on the inspection practices in your area.
• If you had recent service that required disconnecting the battery, OBD II diagnostic information may be incomplete and "not ready" for inspection. A vehicle that is not ready may fail inspection.
See also:
Windshield wipers/washers
Windshield wipers and washers
1 - Rain sensor* on/off
2 - Thumb wheel sensitivity/frequency
CAUTION
Use ample washer fluid when washing the windshield. The windshield should
be thoroughly ...
Minor scratches on the surface
If the stone chip has not penetrated down to
the metal and an undamaged layer of paint
remains, the touch-up paint can be applied as
soon as the spot has been cleaned. ...
Temporary Spare
Spare tireThe spare tire in your vehicle is called a "Temporary
Spare".
Recommended tire pressure (see the placard
on the B-pillar or on the fuel filler door) should
be maintained irr ...
