Signal light problems

Electrical and Ignition

  1. DartVadar

    DartVadar Well-Known Member

    Messages:
    1,334
    Likes Received:
    35
    Joined:
    Apr 3, 2013
    Location:
    Alberta
    Local Time:
    1:40 AM
    So I recently replaced my signal light switch on my dart, prior to the new switch both brake lights worked, but after installation Only one worked. The bulbs are brand new, all the lights and signals work, the lights just don't work when I press the brake pedal. I thought I messed up the signal light switch so I was checking everything, and when i was checking I must have shorted something because the done light went out and I blew out fuse number 3, and now both brake lights don't work but signals and lights work. I'll replace the fuse, but what could be causing the problem? I'm really clueless.
     
  2. 67Dart273

    67Dart273 Well-Known Member

    Messages:
    38,642
    Likes Received:
    6247
    Joined:
    Oct 14, 2010
    Location:
    Idaho
    Local Time:
    11:40 PM
    In your original statement, all signals (and 4 way) work normally?

    But both brake lights don't work?

    This trouble would be IN the signal switch

    Is it possible that you miswired it? If you switched the wire for the non-working rear lamp to the same side FRONT lamp, you would have "one brake light" LOL in front, and another in the rear
     
  3. DartVadar

    DartVadar Well-Known Member

    Messages:
    1,334
    Likes Received:
    35
    Joined:
    Apr 3, 2013
    Location:
    Alberta
    Local Time:
    1:40 AM
    Yup 4 ways and signals work, nothing happens when I hit the brake pedal. And I don't think so, I wired it exactly how it was before, so I don't think the wiring is wrong.
     
  4. 67Dart273

    67Dart273 Well-Known Member

    Messages:
    38,642
    Likes Received:
    6247
    Joined:
    Oct 14, 2010
    Location:
    Idaho
    Local Time:
    11:40 PM
    You can check, either probe the signal connector and look for 3 brake light occurrances -- one going in, two coming out, or have someone look at the front of the car when brakes are applied

    Of course if the dash indicators work, one of them will be lit with "brake"
     
  5. moparclown

    moparclown Well-Known Member

    Messages:
    1,717
    Likes Received:
    11
    Joined:
    Aug 19, 2008
    Local Time:
    1:40 AM
    This may sound crazy but I had the same issue A while back and it was driving me nuts.
    Try holding up just a little bit on the signal lever and hit the brakes to see if both lights work then?
     
  6. DartVadar

    DartVadar Well-Known Member

    Messages:
    1,334
    Likes Received:
    35
    Joined:
    Apr 3, 2013
    Location:
    Alberta
    Local Time:
    1:40 AM
    I'll try that tomorrow after I get the new fuse in, I have the steering wheel off and I'm thinking that the signal light switch isn't getting a good connection, I'll pull the lever and see if it lights the brake lights. I hope that works, if not then I really am clueless. But regardless I can't do anything because of the blown fuse. And I can see why it drove you crazy, it's so frustrating when you have electrical problems.
     
  7. norshorblufish

    norshorblufish By the Big Water

    Messages:
    2,175
    Likes Received:
    192
    Joined:
    Dec 1, 2007
    Location:
    Duluth, Minnesota
    Local Time:
    1:40 AM
    If those things fail check the brake light switch at the brake pedal.You could have shorted it out when you blew the fuse.
     
  8. RedFish

    RedFish Well-Known Member

    Messages:
    22,680
    Likes Received:
    1682
    Joined:
    Sep 5, 2007
    Local Time:
    2:40 AM
    I think the black wire is horn and on same circuit as dome. Signal switch assemblies are so flimsy that a bad upper column bearing or other misalignment of parts can interrupt them. I can only suggest you loosen the column mounting bolts and wiggles the whole assembly around a bit. There is a little movement left and right plus slotted mounting allows up and down movement. If you find a sweet spot, draw the thing up evenly by the upper 2, leave the lower for last.
     
  9. DartVadar

    DartVadar Well-Known Member

    Messages:
    1,334
    Likes Received:
    35
    Joined:
    Apr 3, 2013
    Location:
    Alberta
    Local Time:
    1:40 AM
    Okay so the new fuse is in, the dome light works and all the lights and signals work. But once again when I press on the brake pedal only the left brake light works, and it turns out that all the flashers work but the right tail lights as well. Bulbs are fine, I checked again. I'm pretty sure the problem is in the signal light switch, because only had this problem after I changed it out. Could it be a faulty switch?
     
  10. Bad Sport

    Bad Sport HALF A BUBBLE OFF Staff Member FABO Gold Member

    Messages:
    34,612
    Likes Received:
    13582
    Joined:
    Jun 12, 2010
    Location:
    The Wolverine
    Local Time:
    2:40 AM
    I went through the same stuff when I changed my turn signal switch. One minute the brake lights wouldn't work, next minute the flashers wouldn't work, etc. I bet I pulled that switch out 6 or 8 times before I finally got everything working. I have no clue why.
     
  11. chryslerman6772

    chryslerman6772 Banned

    Messages:
    236
    Likes Received:
    1
    Joined:
    Nov 4, 2012
    Location:
    nevada
    Local Time:
    1:40 AM
    i have the same problem with my mine dart, it so frustating.
     
  12. 67Dart273

    67Dart273 Well-Known Member

    Messages:
    38,642
    Likes Received:
    6247
    Joined:
    Oct 14, 2010
    Location:
    Idaho
    Local Time:
    11:40 PM

    Read my earlier post. Access the signal switch connector, and or the kick panel connector for the rear harness and use a test lamp or meter to ID left / right signal. If you have signal power on that line, and do not have brakes on BOTH it's the switch

    I
     
  13. RedFish

    RedFish Well-Known Member

    Messages:
    22,680
    Likes Received:
    1682
    Joined:
    Sep 5, 2007
    Local Time:
    2:40 AM
    If all the problems are in the right rear fixture the problem is at that fixture. Good bulb is good but the base of the bulb in the socket needs a chassis ground path. If the inside of the socket is corroded, fixture isn't tight to the body, etc.. it wont work.
     
  14. 67Dart273

    67Dart273 Well-Known Member

    Messages:
    38,642
    Likes Received:
    6247
    Joined:
    Oct 14, 2010
    Location:
    Idaho
    Local Time:
    11:40 PM
    Ya but Red it "sounds" like he has normal signal. Maybe this is a misconception, LOL
     
  15. WRB426

    WRB426 Insane 4 Mopars FABO Gold Member

    Messages:
    2,237
    Likes Received:
    173
    Joined:
    Apr 20, 2011
    Location:
    MA
    Local Time:
    2:40 AM
    I agree with above posts. Start simple. Check for power to the switch and out. Check all grounds. Grounds can cause many problems. Make sure the harness running through the column isn't pinched. I've seen this before. All else fails use the car on the drag strip. You only have to go straight. LOL. Good luck. Electrical problems suck.
     
  16. DartVadar

    DartVadar Well-Known Member

    Messages:
    1,334
    Likes Received:
    35
    Joined:
    Apr 3, 2013
    Location:
    Alberta
    Local Time:
    1:40 AM
    So I've been fiddling around with the switch again. I have checked everything, there is power to everything, grounds are good, bulbs are good, wires are intact. The problem seems to be the switch, when I put the switch on lightly and push down so that a connection is made, everything works like it should, but when I actually screw it down where is goes only one brake light works again, it seems like the switch doesn't sit in the right place, because when I turn it slightly the lights work, but I can't get it to stay there. Could the switch just be bad? Or is there anyway I can fix my current one to make it work?
     
  1. This site uses cookies to help personalize content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.