Corner lights provide additional lighting to the side of your Toyota whenever it maneuvers like turning around a corner or taking a U-turn. This will help you be aware of any object to your side, objects that are not normally illuminated by your headlights. As a result, accidental collisions are prevented, making driving much safer. This is why it is important to keep these lights well maintained. Although a number of problems could strike, rendering the lights ineffective, you can diagnose the cause of these troubles early on. You can apply the appropriate solution right away. Here are some issues with Toyota Corolla corner lights that you should be aware of:
If one of the corner lights does not seem to work, you'll need to check the light bulb, the electrical connections, and the relay. Open up the corner light assembly first, detach the bulb, and inspect it. If the filament inside is broken or if there are grayish deposits covering the inside of the bulb, it means that it's burned out. If the bulb looks just fine, check out the bulb socket and the wires. Be sure that the connection between them is tight; fix the connection if otherwise and try to reinsert the bulb securely to see if it functions normally. Check if the socket or the wires are damaged and corroded; they need to be replaced if that is the case. If they all work properly, then check out the relay. Just swap it with a new one and see if the lights will work after. If that does the trick, then just leave the new relay in.
If all the corner lights aren't functioning, there is something wrong with the electrical system. The first thing you should do is inspect the fuse. Just pop up the hood of your Corolla and remove the appropriate fuse. If it's burned out, replace it with another one before testing out the corner lights. If the fuse looks good, check out the relay next. Switch it with a new one to see if that will make the lights work.