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Western snow plow light problem

Discussion in 'Truck & Equipment Repair' started by chris694205, Dec 6, 2009.

  1. chris694205

    chris694205 Senior Member
    Messages: 175

    hello all,,,

    I own a 2003 2500hd with the 8.1/allison.. it is equipped with a 9 pin wiring harness with the 6 relays in order to make the plow lights work.... i have the plow in perfect working order but when i plug the plow in the truck lights stay on and i have no plow lights?? Any ideas
     
  2. Crash935

    Crash935 2000 Club Member
    Messages: 2,377

    Take it this is a recent install with used equipment?

    03 uses a 12 pin harness with 6 relays. You need a completely different harness and also need to change the headlight/control harness on the plow side.
     
  3. chris694205

    chris694205 Senior Member
    Messages: 175

    my fault i guess it is a 12 pin... what will i need to look for for the plow side to match???
     
  4. Crash935

    Crash935 2000 Club Member
    Messages: 2,377

    are you sure its a 12 pin, the 9 pin and 12 pin will plug into each other, the 9 will have 3 dead pins. Need to count the pins on the plow side harness , should be 12 there.
     
  5. chris694205

    chris694205 Senior Member
    Messages: 175

    i should have known this wouldnt have been easy... the plow is a 9 pin and the truck side is 12
     
  6. Crash935

    Crash935 2000 Club Member
    Messages: 2,377

    Well there you go. Only need to change the harness not the whole headlights, easy to do and cheaper than changing out the headlights also. Give me a few and ill look for the part #
     
  7. Crash935

    Crash935 2000 Club Member
    Messages: 2,377

  8. chris694205

    chris694205 Senior Member
    Messages: 175

    thanks alot i appreciate the help.... what do you think it would cost?
     
  9. Crash935

    Crash935 2000 Club Member
    Messages: 2,377

    +/- $150. Dealer will probably have to order it in, cont let them give you some song and dance about having to order the whole headlight kit. If your dealer wont do it look up Basher, B&B or Arch Burn on here, they are over that way and will help you out.
     
  10. chris694205

    chris694205 Senior Member
    Messages: 175

    i believe that the harness you send me is the 12 pin that i have... so the plow side is 9 and thats what i would have to change???
     
  11. Crash935

    Crash935 2000 Club Member
    Messages: 2,377

    Yes, have to change plow side, part # i gave is for plow side. You are changing only the harness on the plow, not the complete headlight assy.
     
  12. Crash935

    Crash935 2000 Club Member
    Messages: 2,377

    The harness you installed on the truck, did it have a green with white, red with white orange whit white and yellow with white wire that went to the relays?
     
  13. chris694205

    chris694205 Senior Member
    Messages: 175

    ill have to run outside and check it out.... from what i remember i believe it has the same exact coloring as the link you sent me?
     
  14. Crash935

    Crash935 2000 Club Member
    Messages: 2,377

    Just want to make sure that you do have the 12 pin 64078 harness on the truck so that we have to change that also.
     
  15. chris694205

    chris694205 Senior Member
    Messages: 175

    yes that is correct it does have those wires also i noticed that on #3 the black with white wire is leading to no where
     
  16. Crash935

    Crash935 2000 Club Member
    Messages: 2,377

    Your good on the truck then, blk/wht is not used. Just need to get that harness then and get it on the plow and you should be good to go.
     
  17. chris694205

    chris694205 Senior Member
    Messages: 175

    again i appreciate it...
     
  18. Crash935

    Crash935 2000 Club Member
    Messages: 2,377

    No problem,

    Dont be a stranger now, hang out and make some friends and learn a few things now that your here!
     
  19. chris694205

    chris694205 Senior Member
    Messages: 175

    sounds good... im sure ill be here alot because my plow is gettin pretty old and beat