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alexiskai · 09-04-2022, 03:19 PM

The horn is one of the few electrical components on the A where power isn't supposed to flow back to the battery via the chassis (at least not initially). Instead, the connection is made via the horn rod. So the motor frame and cover shouldn't be live. My initial guess is that the live power connector is loose or is protruding in a particular way so that it's making contact with the cover, but if the cover and base are painted, it may not be able to short out. Or perhaps the contact is intermittent, or only happens when you tighten the cover down. Then the cover screw makes the connection from the cover to ground and you get the spark.

Can you send a picture of the way your wires are terminating at the horn?

09-04-2022, 03:19 PM	#2
alexiskai Senior Member Join Date: Apr 2018 Location: Mebane NC Posts: 3,179	Re: Horn short circuit The horn is one of the few electrical components on the A where power isn't supposed to flow back to the battery via the chassis (at least not initially). Instead, the connection is made via the horn rod. So the motor frame and cover shouldn't be live. My initial guess is that the live power connector is loose or is protruding in a particular way so that it's making contact with the cover, but if the cover and base are painted, it may not be able to short out. Or perhaps the contact is intermittent, or only happens when you tighten the cover down. Then the cover screw makes the connection from the cover to ground and you get the spark. Can you send a picture of the way your wires are terminating at the horn?