nanolund;

To locate a (likely) short to ground on a fuse circuit, connect a 5 or 10 Watt bulb across the (removed) fuse connections. When going into the pos2, it will light...the short is completing the circuit to ground. Now following circuit diagram, with ign swtich in pos2, carefully disconnect the various loads supplied by this circuit...when you have disconnected the offending short (or a harness leading to it) you have narrowed in the short...continue until you narrow it down to just one confirmed problem which when disconnected, extinguished the bulb...typically its a squished/or chaffed wire...maybe a shorted motor. It's timeconsuming and a pain job...that's why you pay a lot to have it done...once you find the problem, repair, replace bulb with a fuse of the correct rating again...

Good Hunting!