Question about 2003 Chevrolet Silverado 2500HD
In your fuse box there should be 2 marked post 1 and post 2. The posts are located under the cover just behind the fuse box. Usually one post is used for trailer brake power and the other for 12 volt trailer power. Some of these are left disconnected from the factory. You might have to remove the fusebox cover to get to them. Also try http://www.etrailer.com/faq-wiring.aspx. They have a great website with lots of info.
Posted on Oct 07, 2009
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Posted on Jan 02, 2017
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