{"id":40,"date":"2026-11-02T17:00:16","date_gmt":"2026-11-02T17:00:16","guid":{"rendered":"https:\/\/thesmogdawg.com\/?page_id=40"},"modified":"2026-11-02T17:00:16","modified_gmt":"2026-11-02T17:00:16","slug":"obd-ii-readiness-and-drive-cycles-explained","status":"publish","type":"page","link":"https:\/\/thesmogdawg.com\/?page_id=40","title":{"rendered":"OBD-II Readiness and Drive Cycles Explained"},"content":{"rendered":"\n
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OBD-II readiness guide<\/p>

NOT READY? START HERE.<\/h1>

A plain-language guide to readiness monitors, why they reset, and the driving conditions that commonly help them complete.<\/p><\/div><\/section>\n

Important:<\/strong> Drive cycles vary by model year, engine, transmission, fuel type, software calibration, and the monitor that is incomplete. Use this as practical guidance\u2014not a substitute for the exact service procedure. Obey traffic laws and never watch a scan tool while driving.<\/div><\/section>\n

Drive cycle at a glance<\/p>

01<\/div>

Cold soak<\/h3>

Often overnight<\/p><\/div>

02<\/div>

City warm-up<\/h3>

Gentle stop-and-go<\/p><\/div>

03<\/div>

Steady cruise<\/h3>

55 mph \u00b7 8 minutes<\/p><\/div>

04<\/div>

Safe coast<\/h3>

55 down to 15 mph<\/p><\/div>

05<\/div>

Cruise again<\/h3>

Several more minutes<\/p><\/div>

06<\/div>

Scan status<\/h3>

Do not clear codes<\/p><\/div><\/div><\/div><\/section>

WHAT \u201cNOT READY\u201d REALLY MEANS<\/h2>

A readiness monitor is an emissions self-test performed by the vehicle computer. \u201cNot Ready\u201d means that a test has not finished since memory was cleared; it does not automatically mean the part has failed. A monitor may stay incomplete because the enabling conditions have not occurred, a related fault is pending, or the vehicle has a software or component problem.<\/p>

Why monitors reset<\/h2>