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2014 Chevy Silverado
Platform: Truck, GMT 400, 800, & 900

2500 Silverado Brake Controller Problem

Old Sep 17, 2008 | 9:38 PM
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Default 2500 Silverado Brake Controller Problem

Hello Everyone!
I have a puzzling problem.....
I have a 2005 2500HD Silverado, when you press on the brake pedal the brake lights come on but the 3rd brake light does not. But when you press on the brake controllerthe 3rd light comes on and the brake lights do not.....
Has anyone ever come across this?
There are no dummy lights on but the truck has two codes stored CO040 and CO055.
Thanks!!!
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