Acura 2013 MDX - Manual (Page 595)

Testing of Readiness Codes
If you take your vehicle for an
emissions test shortly after the
battery has been disconnected or
gone dead, it may not pass the test.
This is because of certain
‘‘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 retested within the
next two or three days, you can
condition the vehicle for retesting by
doing the following.
1. Make sure the gas tank is
nearly, but not completely, full
(around 3/4).
2. Make sure the vehicle has been
parked with the engine off for 6
hours or more.
3. Make sure the ambient
temperature is between 40° and
95°F (4° and 35°C).
4. Without touching the accelerator
pedal, start the engine, and let it
idle for 20 seconds.
5. 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 1/4 of the
scale (about 3 minutes).
6. Without touching the accelerator
pedal, let the engine idle for 20
seconds.
Emissions Testing
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12/07/17 18:10:57 13 ACURA MDX MMC North America Owner's M 50 31STX660 enu
2013 MDX
Technical
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