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Toyota Pickup Corner Lights

What to Do When Your Toyota Pickup Corner Lights Malfunction

Corner lights, which are also called as side marker lights, are not mere ornaments found on the side of the fender. Just like all automotive lights found in your Toyota pickup, these lights are designed for a safety purpose-they enable other drivers to see you even at oblique angles. However, corner lights eventually start malfunctioning due to defects in their components. Check the following parts to find out why your Toyota Pickup corner lights have become inoperative:

Blown fuse

Locate the fuse of your corner light in the fuse box, which can be found in the engine compartment. If the fuse is blown, replace it immediately. Pull out the old fuse using a fuse extractor. Make sure that your replacement fuse has the same amp as the old one and that it is of the same type. If you are uncertain about the kind of fuse you need, better consult your owner's manual.

Burnt-out bulb

In order to access the corner light bulb and have it examined, you need to remove the seals or covers placed on it. If there is any damage on the bulb, disconnect the wiring connector of the bulb and simply pull it from the assembly. Replace the burnt-out bulb. Make sure that your bare hands do not make any contact with the new bulb. Oil might get on the surface of the bulb, which could form into hot spots once the bulb heats up. Eventually, the bulb might burn out prematurely. You may use a clean cloth to hold it during installation.

Also, you may want to inspect the seals or covers for damage. Making sure that they are still in good condition would assure you that moisture or any dirt won't be able to get into the interior of your corner lights. Replace them as well if they are already worn out. Reconnect the wiring connectors.

Other possible damaged components

Other components that you might have to look into include the bulb socket. Make sure it is clean and free from rust. If corrosion is apparent, replace the affected part. Check the electrical terminals and other wires for corrosion as well. Also, make sure that there is sufficient voltage in the corner light's electrical connector. Otherwise, the problem might be caused by a battery or alternator malfunction.

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  • Keeping Your Toyota 4Runner Headlight Assembly Aglow

    Sometimes, the only thing that's causing your Toyota 4Runner headlight assembly to produce inadequate illumination is a dirty pair of headlight lens. The problem could be as simple as that, which could be easily taken care of by cleaning it thoroughly. However, an electrical malfunction in one or more of its components may prevent your headlights from giving off the right level of brightness. To avoid such problems and ensure proper lighting in poorly lit roads, follow these simple tips on how to keep your Toyota 4Runner headlight assembly in good condition:

    Regularly clean your headlight assembly.


    Because your headlight assembly is in the front end of your vehicle, it is inevitable for dirt to get stuck on it. So before it hardens and becomes difficult to remove, clean your headlights using the proper cleaners like the aluminum polishing compound. This cleaning substance is effective in restoring oxidized headlights as well. However, if the dirt is just mild, washing the surface of your headlights with car soap will do.

    Look closely for scratches and polish your headlight lens with an abrasive compound. However, if the scratch is deep enough for your fingernail to fit in, fill it in with resin instead and sand it until it comes back to its original state.


    Tidy up your headlight assembly from the inside, too. Spray on some glass cleaner on the headlight lens and main housing and wipe them clean with paper towels. Make sure you unplug all electrical connectors and remove the bulb from the headlight assembly before fixing the scratches. Also, remember not to touch the glass bulb with your hands. Check for moisture as well and make sure that you dry it up before putting back the headlight assembly in place.

    Inspect the electrical components.

    The three most important components you need to check are the bulb, the wires, and the fuse. Make sure that they are properly functioning and your headlights are giving off enough light. Should you find the bulb to be burnt out, the wires frayed, or the fuse blown, do the necessary repair or replacement. If one of your headlights is already defective and requires replacement, make sure that you still change them in pairs to attain balanced lighting.