how do I reset the check engine light on my Ford Mustang S650 (2024-Present)

Solution

1. Preparation

• Gather tools: OBD-II scanner, wrench set for battery terminals.
• Ensure the vehicle is parked on a flat surface and the engine is off.

2. Use OBD-II Scanner

1. Locate the OBD-II port under the dashboard, near the steering column.
2. Connect the OBD-II scanner to the port.
3. Turn on the ignition without starting the engine (position II).
4. Follow the scanner instructions to read and document any error codes.

3. Clear Error Codes

1. After noting the codes, navigate to the "Clear Codes" option on the scanner.
2. Confirm the action to erase the error codes.
3. Disconnect the scanner once completed.

4. Battery Disconnection (Optional Method)

1. Use a wrench to loosen the negative battery terminal bolt.
2. Remove the negative terminal and secure it away from the battery.
3. Wait for 10-15 minutes to allow the ECU to reset.
4. Reconnect the negative terminal and tighten the bolt securely.

5. Final Check

1. Start the engine and check if the check engine light is off.
2. If the light remains on, further diagnostics may be needed.