Adrian, I think Mr. Grady has the right solution, but just in case that isn't the problem, here's a way to trouble shoot the system. With the #12 fuse removed, put your handy ohmmeter across the solid purple wire of the fuse socket and the other lead, touch to a good ground. If you get zero ohms on the X1 scale, then one of the circuits is touching ground somewhere. The solid purple wire goes from the #12 fuse to the following items: Engine bay light Trunk light Glove box light Front interior light Rear interior light Left door lights (three) Right door lights (three) Any one of these purple wires touching ground will cause the #12 fuse to blow. Before tearing the wiring apart, check each of the lights and their connections to make sure the ground is not there. If all these visually check good, contact me offline and I'll talk you through how to electrically troubleshoot them. Mike TPS 1630 --- On Sun, 12/5/10, adriandunker <dunker.adrian@xxxxxxxxx> wrote: From: adriandunker <dunker.adrian@xxxxxxxxx> Subject: [DML] electrical short To: dmcnews@xxxxxxxxxxxxxxx Date: Sunday, December 5, 2010, 10:45 PM Hello group, I'm having trouble with my courtesy light circuit. The #12 fuse keeps blowing as soon as I put one in. I have taken out all of the lights on the circuit with no change. I haven't been able to find any faulty wiring yet either. I saw that this fuse also handles the diagnostic plug, but I don't know anything about that. Any help getting my interior and marker lights back up would be appreciated. Thank you, Adrian Dunker 10674 P.S. I found the new Grady website fascinating and well done. [Non-text portions of this message have been removed] ------------------------------------ To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnewsYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: dmcnews-digest@xxxxxxxxxxxxxxx dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/