Acura 2011 TSX Sport Wagon User Manual Page 309

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307
Emissions Testing
Continued
Information
Your vehicle uses "readiness codes," as part of it's onboard self diagnostic system.
Some states refer to these codes during testing to see if your vehicle's emissions
components are working properly.
The codes may not be read if you go through the testing just after the battery has
gone dead or been disconnected.
To check if they are set, turn the ignition switch to ON
II
, without starting the
engine. The malfunction indicator lamp will come on for several seconds. If it then
goes off, the readiness codes are set. If it blinks five times, the readiness codes are
not set.
If you are required to have your vehicle tested before the readiness codes are
ready, prepare the vehicle for retesting by doing the following:
1. Fill the gas tank to approximately 3/4 full.
2. Park the vehicle and leave the engine off for 6 hours or more.
3. Make sure the ambient temperature is between 40 °F and 95 °F (4 °C and 35
°C).
4. Start the engine without touching the accelerator pedal, and let it idle for 20
seconds.
5. Keep the vehicle in
P
.
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. Let the engine idle with your foot off the accelerator for 20 seconds.
Testing of Readiness Codes
The readiness codes are erased when the battery is
disconnected, and set again only after several days
of driving under a variety of conditions.
If a testing facility determines that the readiness
codes are not set, you may be requested to return
at a later date to complete the test.
If the testing facility determines the readiness codes
are still not set, see a dealer.
Testing of Readiness Codes
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