Tools Needed:
- OBD-II scanner or code reader
Instructions:
1. Connect the OBD-II scanner or code reader to the port located under the dashboard, usually near the driver’s side footwell.
2. Turn the ignition key to the “ON” position, but do not start the engine.
3. Follow the prompts on the scanner or code reader to retrieve and display the trouble codes stored in the vehicle's Engine Control Unit (ECU).
4. Once you have identified the trouble code, you can address the issue by repairing or replacing the affected part.
5. After the issue has been resolved, turn off the ignition and disconnect the OBD-II scanner or code reader.
6. Restart the engine. The check engine light should be turned off.
Note: If the check engine light turns on again after resetting it, it's important to have the vehicle inspected by a qualified mechanic to identify and fix the underlying issue.