1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

brake light Switch

Discussion in 'Electrical & Audio' started by pj337, May 15, 2019 at 1:36 AM.

  1. pj337

    pj337 Junior Member

    Posts:
    3
    Likes Received:
    0
    Joined:
    May 13, 2019
    Location:
    lake charles
    First Name:
    earl
    Truck Year:
    1983
    Truck Model:
    c10
    Engine Size:
    350
    I just bought a 83 c10 and I have no brake lights when pressing the brakes. brake lights glow with headlights on. turns signals, reverse lights work. I changed the brake light switch didn't fix the problem. I did notice that I'm missing a connection on the brake light switch could this be the problem. If so what harness do I need to buy. Thanks in advance.

    brake.jpg
     
  2. Shorty81

    Shorty81 Full Access Member

    Posts:
    373
    Likes Received:
    413
    Joined:
    Mar 19, 2018
    Location:
    North West ohio
    First Name:
    Darren
    Truck Year:
    86
    Truck Model:
    K20
    Engine Size:
    496
    Welcome from the Buckeye State.
     
    pj337 likes this.
  3. PrairieDrifter

    PrairieDrifter Full Access Member

    Posts:
    1,226
    Likes Received:
    389
    Joined:
    Dec 28, 2014
    Location:
    North Dakota
    First Name:
    Mason
    Truck Year:
    84,79,70
    Truck Model:
    Suburban k10, bonanza k10, c10
    Engine Size:
    350, 350, 350
    I would fix all the scotch locks as a start. Then look around for a connector somewhere in there
     
    pj337 likes this.
  4. Charlie

    Charlie Full Access Member

    Posts:
    1,289
    Likes Received:
    527
    Joined:
    Aug 2, 2017
    Location:
    Euless, Texas
    First Name:
    Don
    Truck Year:
    1974
    Truck Model:
    Cheyenne 10 LWB
    Engine Size:
    350/TH350/AC/4 BBL Quadrajet
    :welcome:
     
    pj337 likes this.
  5. Matt69olds

    Matt69olds Full Access Member

    Posts:
    260
    Likes Received:
    214
    Joined:
    Jan 8, 2018
    Location:
    Central Indiana
    First Name:
    Matt
    Truck Year:
    81
    Truck Model:
    GMC 1/2 ton
    Engine Size:
    455 Olds
    Yep, your missing a plug. Look for a connector with a orange wire, and a white wire. The orange should have power all the time, the white wire will have power with the pedal pressed. Once you find it, if things still don’t work, check for power at the white wire if the turn signal switch. If good, check for power at the yellow and dark green wires at the turn signal switch. If you have power at the turn signal switch, but nothing on the yellow or green (with the brake pedal pressed) you need a turn signal switch. Before tearing into the column, press and pull the hazard switch button a couple times. I have had funky turn signal/brake light issues solved that way. And I agree, get rid of the scotchlock connectors!! I hate those things. Good luck
     
  6. dvdswan

    dvdswan Full Access Member

    Posts:
    701
    Likes Received:
    282
    Joined:
    Mar 11, 2014
    Location:
    Port Orchard, WA
    First Name:
    Dave
    Truck Year:
    1978
    Truck Model:
    K10
    Engine Size:
    350
    welcome to the site.
     
    pj337 likes this.
  7. pj337

    pj337 Junior Member

    Posts:
    3
    Likes Received:
    0
    Joined:
    May 13, 2019
    Location:
    lake charles
    First Name:
    earl
    Truck Year:
    1983
    Truck Model:
    c10
    Engine Size:
    350
    I found orange and white wire but no connectors. How can I make it work I can't find a store that sells the connectors
     
  8. Matt69olds

    Matt69olds Full Access Member

    Posts:
    260
    Likes Received:
    214
    Joined:
    Jan 8, 2018
    Location:
    Central Indiana
    First Name:
    Matt
    Truck Year:
    81
    Truck Model:
    GMC 1/2 ton
    Engine Size:
    455 Olds
    You could always use crimp on insulated spade terminals, or find a donor connector from a junk car/truck. Pretty sure GM used the same connector from at least the mid 60s to mid to late 80s. Before you get carried away, make sure you have the right wires. Dome lamps also use orange/wire wires. Disconnect the battery, use a self powered test light or meter. Unplug the turn signal switch, check for continuity between the white wire at the turn signal switch harness connector, and your suspected white wire. If you have continuity, plug everything back in, reconnect the battery, and use a fused jumper wire to connect the orange to white wires. If you have brake lights, all is good in the world. Reassemble your truck, put away the tools, go in the house, have a beer, and prop your feet up in a badass fashion.
     
  9. pj337

    pj337 Junior Member

    Posts:
    3
    Likes Received:
    0
    Joined:
    May 13, 2019
    Location:
    lake charles
    First Name:
    earl
    Truck Year:
    1983
    Truck Model:
    c10
    Engine Size:
    350
    Thanks for all the help, I fixed the lights.
     
  10. Matt69olds

    Matt69olds Full Access Member

    Posts:
    260
    Likes Received:
    214
    Joined:
    Jan 8, 2018
    Location:
    Central Indiana
    First Name:
    Matt
    Truck Year:
    81
    Truck Model:
    GMC 1/2 ton
    Engine Size:
    455 Olds
    D5D69B02-B4E2-405B-8A7E-64BBE5F9E301.png
     

Share This Page