The electrical circuits of the car are protected by a number of fuses and
Relays and the boxes with them are installed in the engine compartment on the left side. Durango models feature two boxes: the Power Distribution Center and the Integrated Power Module, and Dakota models' have just a central box. There are small reference cards for fuses and relays on the interior surface of the cover, and there's a Junction Block inside the car at the back of the left kick panel, which you can access through a door. Every fuse is designed to protect an individual circuit, labeled on the fuse panel, and with available sizes like 'mini' and 'maxi'; the maxi types can be pulled off manually but the mini ones require a tool, usually pliers or a fuse puller. If there is a failure in an electrical component, one should always check the fuse; one can use a test light to be sure that there is current at the terminal ends; a fuse can be seen if it has blown. Blown fuses must be replaced with the correct type, if fuses of wrong ratings are used; protection offered would be insufficient. If a replaced fuse breaks as soon as possible then there must be a short circuit as the result of bad cables connecting the circuit, and remedy should be sought to avoid having to replace fuses. Also, there is a fusible link connecting the battery and the alternator to prevent wiring from getting damaged under conditions of high current flow. To replace a fusible link, the negative battery cable has to be disconnected, and before inserting a new link, an overload that caused it to blow should be determined.