Testing of Readiness Codes; ENGINE START/STOP- Page 691

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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 battery has 
gone dead or been disconnected.

To check if they are set, turn the ignition switch to ON 

(

w

*1

, 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

 (continuously variable transmission) or 

(

N

 (manual 

transmission). 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.

*1: Models with the smart entry system have an 

ENGINE START/STOP

 button instead of an 

ignition switch.

1

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.

1.5 L engine models

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