weirdest wiring issue ive ever had.

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mattbrat004

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Lately, my c1500 has been having some issues. When i start the truck, the brake lights automatically turn on. When i press the brake, the brake lights go out, and the top one turns on. I've swapped relays out, and still no change. Also if it helps, ive never had working low beams on this truck, and when i swapped relays, the low beams turned on, but did not turn off when it switched to the brights. Turn signals are fine, and hazards work sometimes, usually when the truck is started the hazards wont click on or off. Any ideas are appreciated
 

89RCLB

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Have you checked all of your grounding points? Just throwin' it out there...
 

mattbrat004

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Where would some of those points be? I suppose some might have gotten messed around with the engine swap
 

Justin S

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Double check and make sure its the brake filaments and not just the taillight ones, then you're going to have to trace the wiring back to where they are getting power from while you're off the pedal.
 

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