Pulling the fuse and/or relay does not work. Still troubleshooting to figure out. Will post when known.
Disconnect horns, disconnect battery, disconnect relay, disconnect fuse .........................................or repair problem.
On a 1988 Mazda 626, the fuel pump relay is located in the fuel tank. Always disconnect the battery before beginning work on a fuel system.
It does no harm to disconnect the battery when working on a vehicle but in general no, you do not need to disconnect them to change a filter.
Follow the wiring harness from your blinker. Disconnect the factory harness from the relay. Replace with the new relay.
how the apfc relay work
There are numerous applications for a normally-closed relay contact. It is used whenever you want to disconnect a circuit when the relay coil is energised.
there is no starter relay have your car alarm checked it has a starter disconnect that goes bad
you can remove the horn relay in the fuse box.
Not usually. Disconnect it and see what happens.
You just pull out the Horn relay/fuse.
The easiest two ways are to either remove the fuse, or remove the relay. If the horn is stuck blowing then the relay is probably bad.