Make sure the gas tank is nearly,
but not completely, full (around
3/4).
Make sure the vehicle has been
parked with the engine off for 8
hours or more.
Make sure the ambient
temperature is between 20° and
95°F.
Without touching the accelerator
pedal, start the engine and let it
idle for 20 seconds.
Keep the vehicle in Park .
Increase the engine speed to 2,000
rpm and hold it there until the
temperature gauge rises to at least
1/4ofthescale(approximately3
minutes).
Select a nearby lightly traveled
major highway where you can
maintain a speed of 50 to 60 mph
for at least 20 minutes. Drive on
the highway in D . Do not use the
cruise control. When traffic allows,
drive for 90 seconds without
moving the accelerator pedal.
(Vehicle speed may vary slightly;
this is okay.) If you cannot do this
for a continuous 90 seconds
because of traffic conditions, drive
for at least 30 seconds, then repeat
it two more times (for a total of 90
seconds).
If you take your vehicle for a state
emissions test shortly after the
battery has been disconnected or
gone dead, it may not complete the
test.Thisisbecauseofcertain
‘‘readiness codes’’ that must be set in
the on-board diagnostics for the
emissions systems. These codes are
erased when the battery is
disconnected, and set again only
after several days of driving under a
variety of conditions.
If the testing facility determines that
the readiness codes are not set, you
will be requested to return at a later
date to complete the test. If you must
get the vehicle re-tested within the
next two or three days, you can
condition the vehicle for re-testing
by doing the following.
5
Technical Information
Testing of Readiness Codes
State Emissions Testing
351
00/08/08 15:49:58 31S3V600_356
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