VCCA Home Forums Thread Like Summary - 1927 chevy truck horn not working

I am confused with the wiring diagram for the horn switch on my 1927 Chevy National.
I have power coming in and out of the horn. The wire coming out of the horn is "grounded" to the steering
column. I tested it with a with a simple light to ground tester and I have power coming out of the wire that is "grounded" to the steering column.
So how does the horn button operate? What is the purpose of grounding the wire?
Help!!

There are two wires to the horn. One wire is the "hot lead" from your lighting switch. If you disconnect this wire from the horn you should measure 6V from this wire to ground with your meter. The other wire to the horn goes up the steering column to the horn button. Pressing the horn button will connect this wire to ground. Therefore with the wires connected to their respective terminals on the horn, you have an electrical path from the lighting switch, through the horn, and to ground when the button is pressed, completing the circuit.

With everything connected and working properly, and the horn not on, it is normal to measure voltage from both of the horn terminals to ground. The electricity is flowing from the lighting switch, into the horn, through the windings in the horn, and out the other horn wire and up the steering column. The electricity is looking for a path to ground. When you press the horn button, you are giving it a path to ground and making the horn blast.

Hope this helps.

Thank you for clarifying the flow of electricity for me. Grounding to a steering column is a new concept to me. I checked over the connections and power flow and got my horn to work!!
I really appreciate your help
Paul