Aftermarket & OEM Fuses
Electrical systems on cars, trucks, and SUV's have several safety devices to protect electrical components and one of those is fuses. They play a key role in protecting electric components and system wiring from damage due to an over-current situation. A defective or blown fuse is normally identified when an electrical device ceases to function. If a series of lights is not operating properly you should begin your investigation by checking the fuse that controls that system. Automotive fuses are normally centrally located in the fuse box assembly. Some vehicles may have multiple fuse boxes located in separate locations. Engine control fuses may be located in an engine control fuse box located in the engine compartment. Accessory fuse boxes are located inside the vehicle and control devices such as the lights, radios, and horns. If a fuse is blown then a defect in current flow existed to create this reaction and this circuit must be examined to determine the possible cause. When you replace a fuse it is very important to use the correct size fuse because it limits amperage flow in the circuit to prevent damage to wiring and components. Proper maintenance of fuses and required replacement is essential.
Fuses have been constructed using several different materials over the years and have evolved with safety as the main objective. They have gone from a piece of wire to a piece of wire enclosed in glass to the more modern dependable fuses we have today enclosed in plastic. The purpose of a fuse is to prevent an over current situation from damaging electrical components and wiring. The maximum load that a circuit can withstand is established. The fuse is a weak link within the circuit designed to melt and open the circuit when it reaches approximately seventy five percent of the maximum load.
Identifying and replacing defective fuses
is a relatively simplex process after you locate the fuse box assembly. Depending on the car, truck, or SUV you are working on fuse boxes may be located under dashboards, in glove boxes, or in the engine compartments. Older fuses like those in classic cars and trucks have glass housings and you can visually see if it is defective. On older vehicles you probably have to consult technical data to see what circuit the defective fuse controls. On newer automobiles the technical data is normally on the fuse box cover. A diagram on the cover identifies the fuses by location number, Amperage required and system affected. You should always use the proper fuse removal tool that is designed correctly and non-metallic to avoid damage to fuses and the circuits they monitor. Only install a new fuse that is the correct amperage for the circuit it is associated with.
Instead of buying just one fuse you should purchase an emergency fuse kit for the vehicle based on make and model and put it in the glove box. Then you will be prepared in the event that another fuse is defective in the future. All electrical system repairs must be completed using quality parts that you can depend on to enhance automotive safety. Car Parts discount has the largest assortment of vehicle parts available with quality service, great prices, and immediate shipping. CPD has fuses and any other OEM and aftermarket electrical parts you may ever need.