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The increased use of power field-effect transistors instead of power relays for controlling electrical loads on vehicles has created an opportunity for the development of a software based virtual fuse. This development has several important aspects to the vehicle OEM. Not only will the cost of the fuse be saved along with the cost of the fuse holder, but also perhaps the largest cost associated with using a traditional fuse: the wiring to and from the fuse. In commercial vehicles, the variability of one vehicle to the next may force different circuits to occupy the same physical space on the different vehicles. These differing circuits may also require different values of fuse elements. Ensuring that the correct fuse value is installed under these conditions can be a difficult task at best. Having a software based virtual fuse that can be programmed to match the vehicle configuration can eliminate having an unprotected circuit due to an assembly error.