MAINTENANCE AND SERVICE
your vehicle diagnosed and, if necessary,
serviced by a qualified Volvo technician.
Periodic maintenance helps minimize
emissions
Emission inspection readiness
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.
If you recently had service for a lit Check
Engine light, or if you had service that
required disconnecting the battery, a
period of driving is necessary to bring the
OBD II system to "ready" for inspection.
Two half-hour trips of mixed stop-and-go/
highway driving are typically needed to
allow OBD II to reach readiness. Your
Volvo retailer can provide you with more
information on planning a trip.
•
NOTE
Refer to your Service and Warranty
Booklet for a comprehensive service
and maintenance schedule up to
•
240,000 km (150,000 miles). This
program contains inspections and ser-
vices necessary for the proper function
of your vehicle and includes compo-
nents that affect vehicle emissions.
How can my vehicle fail OBD II emission
inspection?
Your vehicle can fail OBD II emission inspec-
tion for any of the following reasons:
Maintain your vehicle in accordance with
your vehicle's maintenance schedule.
•
The Warranty and Service Records
Information booklet also contains
detailed information concerning the
warranties that apply to your vehicle.
•
If your Check Engine (MIL) light is lit, your
vehicle may fail inspection.
•
Owner maintenance
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.
•
Periodic maintenance requirements and inter-
vals are described in your vehicle's Warranty
and Service Records Information booklet.
On-board Diagnostic System
OBD II is part of your vehicle's computerized
engine management system. It stores diag-
nostic information about your vehicle's emis-
sion controls. It can light the Check Engine
light (MIL) if it detects an emission control
"fault." A "fault" is a component or system
that is not performing within an expected
range. A fault may be permanent or temporary.
OBD II will store a message about any fault.
The following points can be carried out
between the normally scheduled maintenance
services.
If you had recent service that required dis-
connecting the battery, OBD II diagnostic
information may be incomplete and "not
ready" for inspection. A vehicle that is not
ready may fail inspection.
•
Each time the vehicle is refueled:
Check the engine oil level.
•
Clean the windshield, windshield wipers,
headlights, and taillights.
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How can I prepare for my next OBD II
emission inspection?
If your Check Engine (MIL) light is lit or
was lit but went out without service, have
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