ECM \"B\" Fuse Does anyone have a schematic that tells what all is on this fuse. I have a 90 jimmy that kept blowing this fuse after I went wheeling one night. It ended up that I had blown my pump and broke my battery. I replaced both and everything was great but then I blew the 10 A fuse for the ecm "B" I replaced the fuse and as soon as I turned on the key it blew. So I replaced it with a 15 and it ran for about 5 mins then blew. I put in another one and as soon as I turned on the key it blew. When I did this witha 25 and a 30 they each lasted about 10 mins. But now as soon as I turn on the key I blow the fuse. WHat could cause this???