How do you replace headlight relay 2003 Saab 9 3?

To replace the headlight relay on a 2003 Saab 9-3, first, locate the relay in the fuse box, which is typically found under the dashboard or in the engine compartment. Remove the cover of the fuse box and identify the headlight relay by checking the diagram on the cover. Carefully pull out the old relay and insert the new one, ensuring it is seated securely. Finally, replace the fuse box cover and test the headlights to confirm they are functioning properly.