you are gona need a schematic on everything that is used by this fuse ..40 amp fuse it shouldn`t be a problem to find because its a dead short somewhere ...especially with that amp fuse ....shouldn`t be that many componets on that amp fuse .....can always use a test lite in place of fuse and when you disconect the problem the lite will go out ..could once you find out what all componets are in the circuit could put fuse in line at each item and see whitch blows the fuse then you`ll know whitch is at fault ....shorts are alway fun
bg, February 2006