Electrical circuits — general information (Peugeot 307)

To protect electrical circuits, blade-type fuses are used, the color of which corresponds to the protection current of the fuse. The health of the fuse is determined by the presence of a wire conductor connecting the contacts of the fuse. To replace a failed fuse, first turn off the corresponding electrical circuit, remove the fuse from the socket with tweezers. If a newly installed fuse fails instantly when energized, check the circuit being protected. If the fuse protects multiple circuits, connect them one at a time so that the blown fuse can identify the faulty circuit.