How to clear the codes of a check engine light

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Ensure the Issue is Resolved

1. Before clearing the codes, make sure the problem causing the check engine light has been fixed. Otherwise, the light will likely come back on.

Use an OBD-II Scanner

2. Obtain an OBD-II (On-Board Diagnostics) scanner, which is a device that can connect to your vehicle's OBD-II port to read and clear trouble codes.

Locate the OBD-II Port

3. Find the OBD-II port in your car. It's usually located beneath the dashboard near the driver's seat.

Turn Off the Vehicle

4. Ensure the vehicle is turned off before connecting the OBD-II scanner.

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Connect the Scanner

5. Plug the OBD-II scanner into the port, following the manufacturer's instructions.

Turn On the Ignition

6. Turn the vehicle's ignition to the "On" position without starting the engine. This provides power to the OBD-II port and the scanner.

Read Codes

7. Use the scanner to read the trouble codes stored in the vehicle's computer. Take note of the codes for reference.

Clear Codes

8. Find the option on the OBD-II scanner menu to clear or erase trouble codes. Follow the instructions provided by the scanner.

Wait for Confirmation

9. After selecting the option to clear codes, wait for the scanner to confirm that the operation was successful.

Verify Check Engine Light

10. Turn off the ignition and restart the vehicle. Check if the check engine light is no longer illuminated. If the problem persists, the light may come back on