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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
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.
