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7-8 Starting and operating
test.
The U.S. Environmental Protection
Agency (EPA) and states using two-wheel
dynamometers in their emission testing
programs have EXEMPTED SUBARU
AWD vehicles from the portion of the
testing program that involves a two-wheel
dynamometer.
There are some states that use four-wheel
dynamometers in their testing programs.
When properly used, that equipment will
not damage a SUBARU AWD vehicle.
Under no circumstances should the rear
wheels be jacked off the ground, nor
should the driveshaft be disconnected for
state emission testing.
WARNING
Testing of an All-Wheel Drive model
must NEVER be performed on a
single two-wheel dynamometer. At-
tempting to do so will result in
uncontrolled vehicle movement and
may cause an accident or injuries to
persons nearby.
CAUTION
Resultant vehicle damage due to
improper testing is not covered
under the SUBARU Limited War-
ranty and is the responsibility of
the state inspection program or its
contractors or licensees.
The EPA has issued regulations for
inspecting the On-Board Diagnostic
(OBD) system as part of the state emis-
sions in spection. The OBD system is
designed to detect engine and transmis-
sion problems that might cause vehicle
emissions to exceed allo wable limits.
These inspections apply to all 1996 model
year and newer passenger cars and light
trucks. Over 30 states plus the District of
Columbia have implemented the OBD
system inspection.
. The inspection of the OBD system
consists of a visual operational check of
the “CHECK ENGINE” warning light/mal-
function indicator lamp (MIL) and an
examination of the OBD system with an
electronic scan tool while the engine is
running.
. Avehicle
passes the OBD system
inspection if proper illumination of the
“CHECK ENGINE ” warning light/MIL is
observed, there are no stored diagnostic
trouble codes, and the OBD system
readiness monitors are complete.
. A vehicle
fails the OBD inspection if the
“CHECK ENGINE ” warning light/MIL is
not properly operating or there are one or
more diagnostic trouble codes stored in
the vehicle’s computer with the “CHECK
ENGINE” warning light/MIL illuminated.
. A state emission inspection may reject
(not pass or fail) a vehicle if the number of
OBD system readi ness monitors “Not
Ready” is greater than one. Under this
condition, the vehicle operator should be
instructed to drive his/her vehicle for a few
days to set the monitors and return for an
emission re-inspection.
. Owners of rejected or failing vehicles
should contact their SUBARU Dealer for
service.
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