Electrical wiring of the vehicle protected with fuses, circuit breakers and fusible links where each fuse is assigned to a particular circuit that is indicated on the fuse panel. The under hood fuse/relay panel is on the right-front corner of the vehicle when facing the engine compartment, the battery fuse/fusible link block is above the battery, and the instrument panel fuse block is located behind a hinged panel in the driver compartment knee bolster. There are small, medium and large fuses used and while medium and large fuses can be lifted out by hands, small fuses require the use of pliers or a plastic fuse puller. Checking fuses is mandatory when an electrical component has a problem, employing a test light to differentiate between lack of power at the terminal tips; the lack of power on one side but power on the other shows that the fuse is blown, which you can also tell by the naked eye. While fuses can be swapped since the physical appearance different types of fuses can be very similar, it is imperative that the correct type of fuse be installed since having different rating will defeat the purpose of the fuses. In case the fuse is replaced and blows again, there might be a problem, usually a short circuit caused by spoilt wiring that should be worked on before replacement of the fuses. Main circuit fuses which have replaced the fusible links have different sizes and current ratings ranging from 5A to 400A to maintain exactly the correct current and shield electronic systems from voltages normally in or above the battery compartment, some of which must be disassembled to replace a fuse. For circuits such as power windows and seats, there exist circuit breakers which are self-correcting when there is momentary overload; if however they do not correct themselves, then immediate inspection is required. A basic check is where the circuit breaker is pulled partly out of its slot and its terminal checked with a voltmeter to see that battery voltage is present on both ends; should voltage be felt only at one end then replacement is required.
