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Table of Contents > Information > Emissions Testing

2023 Honda CR-V Owner's Manual ➜ Emissions Testing

Emissions Testing  
Testing of Readiness Codes  
Your vehicle has readiness code 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 properly if testing is performed just after the 12-volt  
battery has gone dead or been disconnected.  
The readiness codes are erased when the 12-volt  
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.  
To check if they are set, set the power mode to ON, without turning the power  
system on. 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 the testing facility determines the readiness codes  
are still not set, see a dealer.  
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 power system off for six hours or more.  
3. Make sure the ambient temperature is between 40°F and 95°F (4°C and 35°C).  
4. Turn the power system on.  
Continued  
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