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Lexus ES300 Tail Light Assembly

How to Find the Causes behind Lexus Es300 Tail Light Assembly Problems

The Lexus Es300 tail light assembly consists of extremely sensitive components. The bulbs, wires, and sockets are very prone to damage, that's why utmost care is important. But sometimes, no matter how much you protect them, your tail lights can still suffer from a lot of troubles. When they begin to show some signs of failure, you need to do some basic troubleshooting. Most tail light problems are easy to repair once you know where to begin with. Here are some basic steps on how to diagnose defective tail light .

Bulb problems

The most prominent problem with the tail light assembly is a busted light bulb. It's a little hard to notice, since the tail lights are installed at the back of your Lexus. To check if all the bulbs are functioning, observe them from the back of your car while the light circuit is on. If you notice that one of the bulbs is not lit, you have to open the lens cover to inspect that particular bulb. You'll know that the bulb is busted when you see that the filament is burnt. Replace the bulb to keep your tail lights functioning properly.

Fuse problems

When the rest of your tail lights are not working, that could mean only one thing-the tail-light fuse is blown. To verify this, you need to open the fuse box. In a Lexus Es300, the tail-light fuse is usually located at the bottom-most part. Once you found it, inspect its pin or the copper ending. If the pin looks a little dark or blackish in color, it means that the fuse is defective.

Wire problems

Electrical cables play a vital role in the overall function of the tail light assembly. They deliver the needed electricity to keep the lights working. But when they get corroded, twisted, or torn, they will not be able to maintain the flow of electricity. That's why it's important to inspect the wires regularly to know their condition. Open the cover lens and check the wires one by one. You also need to access the wires from the trunk. Since they are located in the inner corners of the vehicle, these wires are not often seen, so you need to inspect them thoroughly.

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  • Simple Ways to Keep Your Lexus Es300 Tail Light Assembly Looking New 27 February 2013

    You don't always notice this, but people tend to judge how responsible you are as a car owner by simply looking at your vehicle. If your car looks fresh and clean all the time, you're creating a very positive impression. That's why it's important to maintain all parts of your car especially your Lexus Es300 tail light assembly. This component is always exposed to heat and rain, which cause them to look foggy and dirty. But there are ways to keep them looking brand new, and here are some of them:


    Clear your clouded tail light lenses.

    Old taillight covers look foggy. This happens when moisture keeps on entering the tail light lenses, which causes dust and dirt to stick on the plastic surface. If you don't clean them regularly,the lenses will be covered by dirt buildup causing them to look extremely clouded. To remove the haze, apply a few drops of plastic cleaner or polish and gently wipe the surface until the stain is removed. If you're not yet satisfied, scratch it with a 1500-grit sandpaper. Spray the lens with soap and water mix before sanding it.


    Remove rust from the tail light sockets.

    Corrosion hampers the flow of electricity. It causes the light bulbs to flicker and eventually die because there's not enough power flowing in the assembly. In order to prevent corrosion, regular inspection is necessary. If you see rust around the sockets, remove it by soaking the area with white vinegar. Scrub the socket with a fine steel brush to take out rust buildup. Rinse off then apply an ample amount of WD-40 or other similar lubricants to prevent future corrosion.


    Repair broken tail-light wires.

    Electrical wires in the tail light assembly can get twisted or corroded. When this happens, your tail light will begin to sputter. To keep your wires working properly, make sure that they are installed correctly. Tape the connections tightly and firmly to ensure that the wires are securely attached to the harness.


    Replace broken parts immediately.

    Take out damaged parts ASAP to prevent them from affecting the other components in the tail light assembly. When replacing bulbs, it's advisable to replace both even if only one bulb is busted. This is to avoid having one light that shines brighter than the other.