1. Turn the ignition key to the "ON" position, but do not start the engine.
2. Use the scan tool to navigate to the "Diagnostics" or "ECM" menu.
3. Select the "Reset Check Engine Light" option.
4. Follow the on-screen instructions to reset the check engine light.
Once the check engine light has been reset, you can turn off the scan tool and start the engine. The check engine light should be off and will only come back on if there is another problem with the emissions system.