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Flasher Help

Discussion in 'Strobe Lighting' started by MDHomeSVCS, Nov 1, 2014.

  1. MDHomeSVCS

    MDHomeSVCS Junior Member
    Messages: 20

    Hello all,

    I am going to be wiring up a Whelen UHFPOS headlight flasher. Can someone tell me what wires go to what on my brights? It is a positive switching flasher if that helps. I have the instruction manual, but am not sure which wires I need to splice into on my truck for the brights. It is going on a 1998 3500.

    Thanks for the help!!!
     
  2. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,943

    Can you post the wiring diagram.
     
  3. MDHomeSVCS

    MDHomeSVCS Junior Member
    Messages: 20

    The diagram of the flasher or the truck? I'm not sure where to get that from...
     
  4. Citytow

    Citytow Senior Member
    from phila
    Messages: 548

    google model / serial numbers
     
  5. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,943

    The flasher for starters
     
  6. Strobesnmore

    Strobesnmore Senior Member
    Messages: 413

    What type of vehicle are you installing it on?
     
  7. MDHomeSVCS

    MDHomeSVCS Junior Member
    Messages: 20

    1998 GMC 3500 crew cab dually
     
  8. MDHomeSVCS

    MDHomeSVCS Junior Member
    Messages: 20

    Ok. I will get it as soon as I get home.
     
  9. MDHomeSVCS

    MDHomeSVCS Junior Member
    Messages: 20

    Here is the wiring diagram for the flasher.

    Wiring.jpg
     
  10. MDHomeSVCS

    MDHomeSVCS Junior Member
    Messages: 20

    Not sure if this is what you are looking for for the truck or not....

    2010-11-16_043601_pic1.gif
     
  11. MDHomeSVCS

    MDHomeSVCS Junior Member
    Messages: 20

    This one looks a little better...

    headlightdiagram.png
     
  12. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,943

    Looks as if the light green on the right side is high beams. So as it exits the headlight plug, should have 2 wires. Need to cut that wire that goes to the left. Cut it about 6 inches or so from the light...or in a place that you can mount the flasher.
    Then one end into the flasher, and the other end into the other end of the flasher.
    Parking light wire...splice off your parking lights to the flasher. Then you have gnd..a batt pos, and another batt pos, but I'm thinking that's your switch.