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Mazda B4000 Tail Light Assembly

DIY Diagnosis of The Mazda B4000 Tail Light Assembly

The Mazda B4000 tail light assembly is essential for your safety. However, problems do come up due to old age and the road conditions working against you. If you wish to lenghten the life span of your tail light assembly, then you better do some troubleshooting. Listed below are some of the common problems related to the part, and the causes behind them.

One of the tail lights malfunctioning

When one of your tail lights is out, it can be caused by one of the following: it could be a faulty bulb, a wiring mishap, or one of the brake components is broken. First check the bulb itself. You can do this by accessing the area under the trunk carpet and pulling out the electrical components. There, just unscrew the bulb and take a look at its filament. If it is broken, then a simple replacement should do it. If not, then go further down and inspect the wiring, especially near the tail light housing. If you see damage of any sort, then that might be the cause of your problem and a little electrical know-how is going to be used to solve it.

Tail light does not work at all

If the tail light is not even working in the first place, then it is more than a defective bulb or a small wiring problem. Instead of the trunk, open up your glove compartment and look for the fuse box inside. There, find the fuse that is labeled "tail light." If you notice that is blown is any way, then replace it with a new one.

Filckering tail lights

Finally, when the tail lights in the assembly flicker on and off, the first thing you should do is it check if the bulb is installed correctly. Double-check if you put the bulbs correctly, and if not, then adjust them accordingly. Also, do remember that you cannot just install any type of bulb. It has to be of the correct wattage in order for it to work properly. The other thing to check is the amount of power the tail light assembly receives. Get a voltometer and measure the voltage. If it is not enough, then a different part of the car is at fault.

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  • Mazda B4000 Tail Light Assembly Maintenance Tips 27 February 2013

    The tail light assembly of your Mazda B4000 needs to be working in top condition at all times. Failure from this part could cause serious problems. Miscommunication between drivers, car accidents, and even encounters with the law may occur if tail light are not maintained well. To be able to prevent all those bad events from occuring, you need to do some maintenance on your tail light assembly once in a while. Here is a simple, easy guide on how to keep it working in pristine condition:


    Check tail light illumination regularly.


    You should always check whether the amount of light your tail light assembly is shedding is as good as before when it was still new. Take a good look at the housing if there are any scratches or dents, as these could lower the lighting levels of your tail light assembly. Also, when you do your inspection, focus on the condition of your bulbs. See if there are any burns or fractures around the filament area. If the filament is busted, then all the maintenance in the world can't fix it, and replacement must be made.


    Remove bulbs carefully.


    When replacing your old, defective bulbs with new ones, make sure that you take them out properly. How you remove the bulb off your Mazda B4000 might be different than the one in other models. Some bulbs can be easily pulled off, while some have to be rotated first. Check the manual on how to correctly remove them, and never force it if they are not budging easily. If you reinstall them the wrong way, you might end up with a lot more problems than just a faulty bulb.


    Inspect electrical connections thoroughly.


    To do this accurately, it is best that you get a voltometer or multimeter. This device allows you to correctly measure the amount of power being given to the tail light assembly. With this, you could locate any wires or fuses that need repair. Replacing a broken fuse is pretty easy, and as for the wires, all you is need some basic mechanical know-how and those should be easy as pie.