My break lights are not working properly

1990 GMC C1500
173,555 MILES • 4.3L • 6 CYL • 2WD • MANUAL
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KEEGANLILES
  • MEMBER
  • 16 POSTS
My break lights are not working properly. I bought this truck from a man and I wanted to have it as a daily driver and a project. The break lights have no power to the switch but they have power to the fuse. Also there are two white wires that connect to my break lights and they were put there by the previous owner of the guy who I bought the truck from and I really want to fix this. Also i believe they are supposed to be wired to my blinkers also and they arent wired through the turn signal switch anything helps.
Apr 30, 2014 at 5:52 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
sounds like someone has hacked their way to make things work and didn't know a damn thing about it. Orange shold power the brake light switch. the nwhite goes to the t/s switch hazard both are here in pics. three are three wires for lights going to back. dk green for right side, yellow for left. brown is for taillights with headlights on etc. see pics. also the ground back there may be to back of frame on drivers side if not rotted off.
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Apr 30, 2014 at 8:29 AM
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KEEGANLILES
  • MEMBER
  • 16 POSTS
awesome now I finaly have an answer thank you very much
May 1, 2014 at 1:40 AM
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