Air Conditioning Maintenance; Testing Of Readiness Codes - Honda CR-V 2018 Owner's Manual

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Temperature
n
The temperature grades are A (the highest), B, and C, representing the tire's
resistance to the generation of heat and its ability to dissipate heat when tested
under controlled conditions on a specified indoor laboratory test wheel. Sustained
high temperature can cause the material of the tire to degenerate and reduce
tire life, and excessive temperature can lead to sudden tire failure. The grade C
corresponds to a level of performance which all passenger car tires must meet
under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent
higher levels of performance on the laboratory test wheel than the minimum required
by law.
WARNING: The temperature grade for this tire is established for a tire that is
properly inflated and not overloaded. Excessive speed, underinflation, or excessive
loading, either separately or in combination, can cause heat buildup and possible
tire failure.

Air Conditioning Maintenance

To ensure proper and safe operation, the Society of Automotive Engineers (SAE J2845)
recommends that the refrigerant system only be serviced by trained and certified
technicians.
Never repair or replace the air conditioning evaporator (cooling coil) with one removed
from a used or salvaged vehicle. New replacement mobile air conditioning evaporators
must be certified (and labeled) as meeting SAE Standard J2842.
NOTICE
Vented refrigerant is harmful to the environment. To avoid refrigerant from venting,
never replace the evaporator with one removed from a used or salvaged vehicle.
Refrigerant in your vehicle's air conditioning system is flammable and can be ignited
during servicing if proper procedures are not followed.
An air conditioning safety label is found under the hood.
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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, turn the vehicle 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 with the
vehicle in Drive. Do not use cruise control. When traffic allows, drive for 90 seconds
without using the accelerator pedal. (Vehicle speed may vary slightly; this is OK.) If
you cannot do this for a continuous 90 seconds because of traffic conditions, drive
for at least 30 seconds, then repeat 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, or see your dealer.
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