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If your convenience lights, turn signals, seat warmers, stereo, headlights or other electronic components suddenly stop working, chances are you have a fuse that has blown out. The video above shows how to check and change blown fuses in the engine bay of your 2004 Mazda 3 in addition to where the fuse box diagram is located. Fuses should always be the first thing you check if your 3 is experiencing electrical difficulties because they are relatively easy and inexpensive to change yourself. The more electronics your 3 has, the more fuses it has. Some Mazdas have multiple fuse boxes in the engine bay, so be sure to find the fuse(s) in question. Some components may have multiple fuses, so make sure you check all of the fuses that are linked to the component that is no longer working properly.
If you need to replace a blown fuse in your 3, make sure you replace it with one that has the same amperage as the blown fuse. If checking and replacing the fuse for the component in question doesn't work, we recommend seeking assistance from a trusted professional mechanic. They should be able to figure out if the component needs to be replaced or if there is a short or some other problem with your 3.
A check engine light can be cleared with a simple fix or it could be a major problem - find out now!2008 Mazda 3 S 2.3L 4 Cyl. Hatchback
Power steering fluid is easy to check and many people (mechanics included) often forget about - learn how here2010 Mazda 3 i 2.0L 4 Cyl.
Leaking coolant is usually a sign that your water pump needs to be replaced. This video shows you how to quickly plug it2010 Mazda 3 i 2.0L 4 Cyl.
See how to seal up minor power steering fluid leaks2010 Mazda 3 i 2.0L 4 Cyl.
Carmakers are hiding interior fuse boxes all over the place these days - see how to check your interior fuses here!2008 Mazda 3 S 2.3L 4 Cyl. Hatchback