Specifications; Testing Of Readiness Codes - Honda Pilot 2020 Owner's Manual For Quick Reference

MAINTENANCE

Testing of Readiness Codes

Your vehicle has readiness codes as part of the onboard self-diagnostic system.
Some states use these codes for testing to verify whether 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, to ON without starting the engine. The malfunction
indicator lamp will come on for several seconds. If it 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
set, 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 PARK (P). Increase the engine speed to 2,000 rpm, and
hold it there for about 3 minutes.
6. Let the engine idle with your foot off the accelerator for 20 seconds.
7. Select a nearby, lightly traveled major highway where you can maintain a
speed of 50 to 60 mph (80 to 97 km/h) for at least 20 minutes. Drive on the
highway in D . Do not use 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).
8. Drive in city or suburban traffic for at least 10 minutes. When traffic
conditions allow, let the vehicle coast for several seconds without using the
accelerator pedal or the brake pedal.
9. Park the vehicle and leave the engine off for 30 minutes.
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.
208 |

SPECIFICATIONS

SPECIFICATIONS
| 209