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1931rumble · 07-03-2020, 07:26 AM

I disconnected the power and removed the horn cover. I reconnected the power and used the test light to locate the hot wire on the horn. Tested the hot wire to the engine block and the light lit up. My helper pushed the horn button while I held the test light to the non hot terminal of the horn. No light.

I tested the hot side of the horn to the electric motor in the horn with the test light. It lit up every where except the top part of the horn that gets power from the horn button. I guess it's the horn wire?

How do I test the horn wire? I can see the two wires that come from the horn and go into the wiring harness. Since they are not color coded after the wire leaves the horn I will start checking the wires that go into the light switch.

07-03-2020, 07:26 AM	#7
1931rumble Junior Member Join Date: Jun 2020 Location: Traverse City Posts: 7	Re: 1931 Coupe Horn Wire I disconnected the power and removed the horn cover. I reconnected the power and used the test light to locate the hot wire on the horn. Tested the hot wire to the engine block and the light lit up. My helper pushed the horn button while I held the test light to the non hot terminal of the horn. No light. I tested the hot side of the horn to the electric motor in the horn with the test light. It lit up every where except the top part of the horn that gets power from the horn button. I guess it's the horn wire? How do I test the horn wire? I can see the two wires that come from the horn and go into the wiring harness. Since they are not color coded after the wire leaves the horn I will start checking the wires that go into the light switch.