1980 ford f150 fuse box diagram - Fixya The horn fuse for this 2002 ford f150 is located in the engine compartment fuse/relay box , heres a diagram of that box , i circled the fuse for the horn, it is in location f1.7. hope this is helpful. also you may want to check the horn relay thats also located in the same box and i circled that also. have a good day. SOLVED: I need the fuse box diagram for my 1980 Ford F-100 I need the fuse box diagram for my 1980 Ford F-100 pickup to find out which one goes to the windshield wipers. PLEASE HELP Posted by mathieuloveh on Dec 23, 2009 1980 F100 Fuse Box Diagram - Ford Truck Enthusiasts Forums 1980 F100 Fuse Box Diagram - Ford Truck Enthusiasts Forums inside 1979 Ford F150 Fuse Box Diagram by admin From the thousand images on the web concerning 1979 ford f150 fuse box diagram, we picks the very best series using ideal resolution only for you all, and now this images is considered one of images choices in your best pictures gallery in relation to 1979 Ford F150 Fuse Box Diagram.