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Formally called the Chevrolet C/K, C/K is a series of trucks manufactured by General Motors and marketed under the Chevrolet and GMC brands. The C/K line includes pickup trucks, medium-duty, and heavy trucks.

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Why do my front, rear and dash signals come on when I press the brake

I just bought a 1997 k2500 cheyenne as a fixer upper. Most of the electrical works but the turn signals don't work. When I press the brake the signal lights all come on including the dash. I cannot find a proper wiring diagram for this truck. The brake relay clicks but sends power to front rear and dash turn signal bulbs. Any ideas what to check

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Check the electric trailer brake wiring, it is a white wire & looks like it maybe a ground, also the #1 fuse in the door, it will blow everytime you hit brake pedal.

Hope this helps you, just a guess.

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