Why does battery light stay on after replacing the alternator and battery on a 2003 Honda Civic?

If the battery light stays on after replacing the alternator and battery in a 2003 Honda Civic, it may indicate a few possible issues. One common reason could be a faulty connection or wiring problem, such as a loose or damaged cable between the alternator and battery. Additionally, the new alternator might be defective, or there could be an issue with the vehicle's charging system, such as a blown fuse or a problem with the voltage regulator. It's advisable to have the electrical system thoroughly checked to pinpoint the exact cause.