Question about 2003 Chevrolet Tahoe

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Brake light problem

When I hook up a boat trailer, why does only one brake light work, but when I hook it up to a differnent truck it works, I know it is a problem in the truck itself, what could it be? I checked all the fuses...

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Check all ur wires underneath ur suv its most likely a ground issue make sure non are frayed and try to follow the wires all the way to the fron start in the back its a typical chevy probem

Posted on May 30, 2009

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1 Answer

Why don't the headlights work?


Look for blown fuse in the fuse panel. Make sure boat is not connected, replace fuse, see if lights return. If they return, you have a short in your trailer lights or connector (car or trailer).

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Check the bulbs in the trailer. If you know someone with a trailer that you could hook up to try that too. A large majority of trailer lighting systems use a simple circuit pattern. Like Christmas lights. . . one goes out they all go out. etc. Some boat trailer lights will burn out if they are hooked up when it's backed into the water. The pain of trailer stuff is figuring out if its really the trailer or not. When the cover is off the lights make sure you take a good look at the guts of the light. The brass pathways will actually arc and melt. Ruining the light. If its not the trailer start checking the vehicle connections. Remember not to overthink things and start with simple stuff first. Oh and recruit a helper to push the brakes and run back and forth it will speed things up greatly.

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RB

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