Turn off the ignition and disconnect the negative battery terminal.
Locate the fuse panels. Most cars have two to three fuse boxes. The main fuse box is typically in the engine bay. Your vehicle will also have an interior fuse panel. Typically under the dash or on the side of the dashboard. It may also be behind the glove box, below the rear seat, or in the trunk.
- Remove each fuse one by one and inspect it to determine if the fuse is blown. A blown fuse will have a broken wire in the middle and most likely will be black.
Left - Good Fuse
Right- Blown Fuse
- If you are looking for a specific fuse, look at the fuse chart and identify the location of the system in question. The fuse chart is usually printed on the back of the fuse box cover, it may be a letter inserted in the fuse box, or some car manufacturers will include the fuse chart in the owner's manual.
Replace bad fuse. Once you identify the bad fuse, you need to replace it. Always replace fuses with the same ampere rating. The ampere rating is printed on the fuse and is also shown in the fuse chart. Don't install a fuse that has a higher ampere rating. This can lead to damage of electronic components in your vehicle and possibly even fires in some cases.