This video shows how to reset check engine light on Mitsubishi Lancer, Outlander, Galant, Mirage, Montero, Pajero, Raider and any other model from 1996 to present.
For this procedure, you will need an OBD2 scanner.
You should only reset Mitsibushi check engine light after fixing the problem that triggered the light. If the problem is not fixed your Mitsubishi service engine light will come back on.
For help with troubleshooting Mitsubishi check engine light and service engine light follow this guide.