If you have already had a mechanic look at it, I'm not sure how to help? Is this the ecm 1 fuse--15 amp? Does it blow as soon as you turn on the key, or does it blow intermittently? Intermittent problems can be hard to track, you have to test when problem is ongoing, otherwise it's just a guess. If it blows quickly, you might be able to disconnect/reconnect everything on that fuse circuit one at a time, see if anything shows up? You could check amp draw on the different components, add it up?
It might be just a wiring circuit or it could be a component? Trouble codes, live engine data, doesn't show anything?
Saturday, August 1st, 2015 AT 11:36 AM