Signal Cam/Hazard issue

Discussion in 'Technical' started by Gombie72, Jun 18, 2019.

  1. Gombie72

    Gombie72 Member

    Joined:
    Nov 19, 2018
    Messages:
    17
    Likes Received:
    1
    Trophy Points:
    4
    Location:
    Boone NC
    Vehicle:
    1974 Mercury Comet
    My '74 mercury is almost to the point of being road legal, but the one issue that is holding me back is that the hazard lights do not work. I know that my turn signal cam is messed up because at one point during my garage restoration, I had taken the wheel assembly apart and replaced the lock cylinder. During this time I discovered corroded connections, and some broken plastics. I have the signal cam on its way, but I cant remember if there were any electrical connections relating to the hazard lights on that cam. potentially would a new signal cam be a solution to non-functional hazards, or are there any other common failure points I should know about? Thanks a lot! - Brad
     
  2. yellow75

    yellow75 MCCI Oregon State Rep Supporting Member

    Joined:
    Jun 10, 2004
    Messages:
    4,679
    Likes Received:
    1,081
    Trophy Points:
    587
    Garage:
    2
    Location:
    Tillamook Oregon
    Vehicle:
    72 Maverick 64 Falcon 2 door wagon 1976 Maverick Stallion 2007 Shelby GT 500 2019 Ford F150 FX4
    Turn signals , brake lights and I just imagine the hazard lights would go through the turn signal cam . There are two flashers one for turn signals and one for hazard lights. A common issue with these cars is loose or corroded ground connections . Being you have a 74 it is the only year that came with a seat belt interlocking device that is suppose to keep car from starting if seat belts are not fastened, if you look under the hood on drivers side you will see a red button and that is an over ride for the interlock, really not sure how it works or doesnt work .
     
  3. Gombie72

    Gombie72 Member

    Joined:
    Nov 19, 2018
    Messages:
    17
    Likes Received:
    1
    Trophy Points:
    4
    Location:
    Boone NC
    Vehicle:
    1974 Mercury Comet
    Huh. I actually was not aware of this. I know the little red button you are talking about, but Ive never had a problem without seatbelts fastened. Although, I don't think that the brake lights would go through the cam. I don't think there would be a need for them to.
     
  4. Krazy Comet

    Krazy Comet Tom Supporting Member

    Joined:
    Sep 13, 2012
    Messages:
    6,829
    Likes Received:
    1,725
    Trophy Points:
    521
    Garage:
    1
    Location:
    Chesapeake VA
    Vehicle:
    1972 Comet GT clone 306 . 1969 Fairlane Cobra 428CJ 1988 T-Bird awaiting 331 ..
    Brake lights feed through the signal sw as do four way flasher. Switch on cam breaks power to brake lights and switches to feed from flasher.
     
  5. William623

    William623 Member Supporting Member

    Joined:
    May 10, 2013
    Messages:
    1,577
    Likes Received:
    474
    Trophy Points:
    211
    Garage:
    1
    Location:
    Orlando
    Vehicle:
    1973 ford maverick grabber
    What are you emergency flashers doing? It is likely your flasher unit is bad.
     
  6. Gombie72

    Gombie72 Member

    Joined:
    Nov 19, 2018
    Messages:
    17
    Likes Received:
    1
    Trophy Points:
    4
    Location:
    Boone NC
    Vehicle:
    1974 Mercury Comet
    Thats interesting! thanks for the reply!
     
  7. Gombie72

    Gombie72 Member

    Joined:
    Nov 19, 2018
    Messages:
    17
    Likes Received:
    1
    Trophy Points:
    4
    Location:
    Boone NC
    Vehicle:
    1974 Mercury Comet
    I can pull the flasher switch to the on position under the column with little resistance, but it clicks into place. Nothing happens when I do it. No lights, no relays clicking, or otherwise.
     
  8. Krazy Comet

    Krazy Comet Tom Supporting Member

    Joined:
    Sep 13, 2012
    Messages:
    6,829
    Likes Received:
    1,725
    Trophy Points:
    521
    Garage:
    1
    Location:
    Chesapeake VA
    Vehicle:
    1972 Comet GT clone 306 . 1969 Fairlane Cobra 428CJ 1988 T-Bird awaiting 331 ..
    Wiring diagram of switch, not Maverick but Ford and all are basically same

    It's common for green or blue wires at cam to break killing signal or brake lights.

    brakesignalsw.jpg
     
    Gombie72 likes this.
  9. RMiller

    RMiller My name is Rick

    Joined:
    Dec 12, 2009
    Messages:
    3,682
    Likes Received:
    800
    Trophy Points:
    398
    Garage:
    1
    Location:
    Kennewick, WA
    Vehicle:
    1971 Maverick Grabber
    Start with the flasher, a very common practice was to swap them out when the turn signal flasher failed. Since hazards are rarely used they usually go through life with the dead flasher form the turn signals.
     
    Gombie72 likes this.

Share This Page