Question about 2002 GMC Sierra 1500
Sounds like the horn itself is shorted out. You didn't mention if the blown fuses were a result of using the horn. A horn in construction is an electromagnet acting on a diaphram; if the electromagnet develops a short, it causes an overcurrent condition and will blow the fuse.
Posted on Jun 23, 2011
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Posted on Jan 02, 2017
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Aug 31, 2014 | Cars & Trucks
Nov 15, 2011 | 2002 GMC Sierra 1500
Please see my tip at http://www.fixya.com/cars/r6022358-relay_check to check the relay and socket. These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.
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