'70 GS Tail/Reverse/Turn Signal Light System Issues

Discussion in 'Sparky's corner' started by TABuickMike, Jul 19, 2010.

  1. TABuickMike

    TABuickMike Michael Tomaszewski Jr

    Basically the brake, turn signal and reverse lights don't work at all (with or without the parking/headlights on). The only thing that works on the lighting system is the headlights, parking lights and interior lights. Before tearing this thing apart to try to figure it out, does anyone have any idea or tips as to what may be the issue?

    Thanks everyone!
     
  2. tlivingd

    tlivingd BIG BLOCK, THE ANTI PRIUS

    it sounds like all the front lights work and none of the rear work.
    bad ground in the rear harness. should be under the bumper somewhere.
     
  3. Skyhawk

    Skyhawk Well-Known Member

    You sure you don't have your turn signal switch harness disconnected under the steering column? Maybe when you were playing with your stereo you knocked it loose?
     
  4. TABuickMike

    TABuickMike Michael Tomaszewski Jr

    No turned out that the fuse had blown, so the turn signals work, but the brake lights still dont work. Turn signal switch?
     
  5. Roberta

    Roberta Buick Berta

    Brake light switch under the dash sometimes gets loose!
     
  6. TABuickMike

    TABuickMike Michael Tomaszewski Jr

    Checked it and it wasn't getting any power, doesn't it go from the fuse block to the turning indicator switch in the column then to the brake pedal switch? So if it has no power and the turn signals now work, could it be something with the turn signal switch, or am I (hopefully) thinking wrong somewhere along the line?
     
  7. Roberta

    Roberta Buick Berta

    Do the hazards work? Brake lights are on a different fuse than direction signals then it's probably in the turn signal switch.
     
  8. TABuickMike

    TABuickMike Michael Tomaszewski Jr

    Figured it out, it looked like at one point the guy had broke the prong for the flasher thingy in the fuse block and clipped one out from another fuse block and stuck it in here but he just twisted them together and wrapped electrical tape around it and it came loose. So we pulled the prong out and took out the 2 clipped wires and then soldered in the correct ones to the prong and hooked everything back up.
     

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