The electrical circuits of the vehicle is protected with fuses, circuit breakers and fusible links with the fuse blocks located in the engine compartment and under the instrument panel. Located on the left side is the engine compartment fuse/relay box where all fuses and relays are labeled according to position and function on the surface of the box which is on the underside of the cover. In the vehicle interior there are two further fuse/relay boxes mounted in the left and right side of the kick board. Every fuse corresponds to a particular circuit and is labeled on the fuse panel cover; if one cannot read the cover or the cover is even absent, then there is a detailed list of fuses and relays in the car manual. Available in minute sizes and with a blade terminal, fuses are easily inserted and removed: when an electrical component does not work, it is advisable to check the fuse first. It is equally possible to use a test light to see whether power is present at the end of each exposed terminal of the fuses; if power is present on one side of a fuse and not the other, then the fuse is blown, which can also be visually determined. Blown fuses should be replaced with the correct type of fuses as fuses of different ratings are physically interchangeable but should be of correct ratings as specified for each electrical circuit to achieve correct protection. If the replacement fuse blows shortly then it is advisable to check for the cause of the problem and do the necessary fix, in most cases, it may be due to short circuit because of bad wire connection. Fusible links are applied in some circuits; they are used in high current circuits and are intended to melt in case of current overloading. Whenever one wants to replace a blown fusible link, one needs to replace it with one that is of the same specification as the one that was blown, which if it blows again one has to diagnose the circuit in question before introducing another link.
