See Figures 1 and 2
In case of an overload in the circuits from the battery, the fusible links are designed to melt before damage to the engine wiring harness occurs. Headlight and other electrical component failure usually requires checking the fusible links for melting. Fusible links are located in the engine compartment next to the battery.
The fusible link is replaced in a similar manner as the regular fuse, but a removal tool is not required.