Horn Relay, Ballast Resistor are HOT
ballast does get hot, that's why its ceramic and changes resistance with heat, the hotter it gets the more resistance it creates to reduce the voltage to the coil. A Horn relay is simply an electromagnetic pole tied to a microswitch. the coil of the elctromagnet energizes when you hit the horn and the new magnetised pole pulls the contacts closed to operate the horn. Its a way to allow a very small capacity switch (horn button) to trip a large amp draw device and not melt. If the relay is hot to the touch, you may have a grounded coil inside the relay. They are inexpensive to replace, but you could test with a multimeter the various contacts. one is going the be ground. This one has a buzzer for the seatbelts IIRc. Violet is power in...?
ballast does get hot, that's why its ceramic and changes resistance with heat, the hotter it gets the more resistance it creates to reduce the voltage to the coil. A Horn relay is simply an electromagnetic pole tied to a microswitch. the coil of the elctromagnet energizes when you hit the horn and the new magnetised pole pulls the contacts closed to operate the horn. Its a way to allow a very small capacity switch (horn button) to trip a large amp draw device and not melt. If the relay is hot to the touch, you may have a grounded coil inside the relay. They are inexpensive to replace, but you could test with a multimeter the various contacts. one is going the be ground. This one has a buzzer for the seatbelts IIRc. Violet is power in...?