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Old 09-03-2009, 10:53 PM
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80's G.M. horn terminal

I have an 80's camaro or firebird tilt steering column in my 37 Sedan and the wiring kit doesn't identify the horn terminal at the bottom of the column. Any ideas out there? Is the horn button just a grnd ? Thanks

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Old 09-04-2009, 12:54 AM
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Pretty sure the horn button is a grounding switch. So a 'hot' from a horn relay should make it's way up the column.

You could probe the contacts at the column plug with a DVM with a continuity check (beeps when circuit is completed) and press the horn button while checking the different plug contacts.

Or look up a schematic.
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Old 09-04-2009, 08:51 AM
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Quote:
Originally Posted by C-10
Pretty sure the horn button is a grounding switch. So a 'hot' from a horn relay should make it's way up the column.
Correct. The wire from the relay coil runs up the column and is grounded when you press the horn button.
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Old 09-06-2009, 12:15 AM
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Thats great I'll try testing it for continuity. I tried to find a schematic but I'm afraid my internet skills are severely lacking .
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