2007 Explorer horn problem

[Dykester]

Hi, the fuse recently blew when I tried to honk the horn. I had no prior issues to this. I replaced the fuse, and depressed the horn again, and it blew the fuse. Looking at the manual, there is nothing identifying the relay. Any ideas?

 

[Rcflyer330]

The main reason a fuse blows is do to a short or overload to the system. i would start by checking the horn for overloading and check for a short in the system. to check for the short disconnect the battery from the car and use a multimeter set on ohms and stick the probes where the fuse goes and press the horn button (you may need two people) and the reading should be an ohm reading if there is no short and it will be an infinite reading ohm reading then there is a short in the system. that should work in theory if the horn is the only thing on that circuit.

 

[tripplec]

Your horn is likely shorted internally. Unplug it and measure as stated you would get virtually zero ohms on the horn. If you have it unplugged and press the horn and the fuse DOES NOT blow then that pretty much confirms it. Find one at the wreckers and you're done.