I checked out the ground and it seems to be good so must be something else, thanks for the suggestionI bet there are some actual Mazda techs. around this board that could help you out more than me. I have just had lots of strange electrical problems in my life with cars that are just bad grounds.
Nothing else is dead, just the horn.Find out what else is dead when the fuse blows. For example, if something is plugged into the 12v socket, it could be drawing a lot of amps. The horn just put you over the limit. If the radio, wipers, lights, etc. die also, it could be any of them.
There’re 2 horns, high and low, at least for higher trims like my 2016 CX-5 GT. Did you replace both?I have a 2016 CX5 which keeps blowing fuses when I blow the horn. I have replaced the relay and also put in a new horn and it still is blowing fuses. Any suggestions would be greatly appreciated.
Do you happen to know which trim level is your 2016 CX-5? Usually these 2 high / low horns are located at opposite locations. The reason I asked is the short could be from the 2nd horn you’ve missed.I could only find one horn.
I tried a little experiment and replaced the fuse with the vehicle in the garage yesterday and this morning the battery was dead. Once I charged the battery and tried the horn the fuse blew immediately This tells me that there is a short someplace which is drawing current from the battery??