OBD-II System Readiness Test

In certain municipalities, vehicles need to be inspected for emissions. If you’ve made modifications to the vehicle, cleared any Diagnostic Trouble Codes (DTCs), or have disconnected the batteries, your vehicle may need to complete a System Readiness Test procedure before you can pass your emissions test. This document outlines the driving conditions the procedure requires to complete test. A very handy document for repair shops and hobbyists alike.

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