Find a freeway ramp and accelerate normally to merge with other drivers. Increase your speed slowly and steadily to 35 mph and then 45 mph.Ĩ. Make a slow, full stop at each stop sign or stoplight. Drive to where you can safely reach 25 mph. Turn on your headlights, heater, and defrosters for at least two minutes.ħ. Start your car, put it in the park or neutral, and let it idle for two or three minutes.Ħ. Do not put the key in the ignition or unlock the car doors during this time.ĥ. Jump starting your vehicle is not an option if you want to perform a true drive cycle.Ĥ. Check the quality of your battery and alternator. Ensure your fuel tank is somewhere between 30% and 70% full.ģ. The drive cycle cannot begin until this step is completed.Ģ. Clear all OBD II error codes with your OBD2 Scanner. These, however, are 10 general steps to performing a basic drive cycle:ġ. It can also vary among vehicle manufacturers, make, model and year, so be sure to check your owner's manual for additional information and specifics. Performing a drive cycle is simple, but takes a little preparation and time to complete. It's a basic cycle that helps your vehicle computer (Powertrain Control Module) to do self-diagnosis and update the check engine light codes, AKA OBD2 Codes. Without going too far into the weeds, a basic drive cycle will ultimately help you or your mechanic know how successful recent repairs are and what - if anything - needs to be reassessed. It's typically useful when you do a car diagnostic test by yourself with an OBD2 Scanner. Whether you’re a mechanic or just interested in knowing what’s going on under your vehicle’s hood, a basic drive cycle is critical to understanding repairs and emissions testing.
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