What is the purpose of the warning buzzer/horn that comes on when you turn on the engine key and goes off when the engine starts, and comes on again when you stop the engine until you turn off the key?
It buzzes when the key is in the on position to let you know it's working. As a side benefit, it also lets you know the ignition is on so you won't forget to turn it off and drain your battery.
By the way, if you hear the buzzer while the engine is running, you have a problem! (Low oil pressure or overheat.) Trouble is, when the engine is running, it's hard to hear that stupid buzzer.............
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