The protection of electrical circuits of automobile utilizes fuses, circuit breakers and fusible links in which the fuse blocks are attached under the panel of instrument in two sides of the dashboard and in the engine section close to the battery and before the ABS actuator. Every fuse is assigned to a particular circuit this is written on the fuse box. Miniature fuses with a Blade Terminal structure allow removal and new installation with a simple movement with the fingertips. As a first troubleshooting step in the occurrence of electrical component failure, one should always check the fuse. Since the casing of a typical fuse is made of transparent plastic, it is relatively easy to check for the element's condition by simple visual assessment after a blown fuse. In this case, if the continuity test is needed, the tips of the blade terminal in the fuse body can be checked. All blown fuses should be replaced with like types as fuses of different capacities may look identical but should not be cross-connected; each circuit has the protection requirement that is specifically provided by the molded amperage value labeled on the fuse body. If a replacement fuse blows out as soon as it is installed, then it should not be replaced again until the root of the problem, usually a short circuit brought about a line fault; a broken or exhausted line is fixed.