Question about 2005 Chevrolet Silverado 1500 2WD

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I have a 05 silverado all three break lights do not work. When I hook up my boat the break lights on my trailer function just fine. And all bulbs and fuses are good any ideas.

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Have you checked the bulbs? Some people don't beleive all the lights can burn out at once but when one brake light is on they are all on and for the same amount of time.
If the bulbs are fine then check the connection where the trailer plug is to the main harness. Some of those connectors go between the main harness and the tail lights and the connector can go bad.

Posted on Sep 02, 2011

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Posted on Jan 02, 2017

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Is this the first trailer you have hauled?
Let me know, and we will go from there.
REgards,

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