579 wiring question.

Discussion in 'Peterbilt Forum' started by JadedGrace, Mar 4, 2016.

  1. ofgorsi

    ofgorsi Bobtail Member

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    Jun 25, 2012
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    Where did you get the lights for the 579 from? If you don't mind me asking, been having a hard time trying to find a kit that was made for that truck.
     
    Ayavia777 Thanks this.
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  3. Ridgeline

    Ridgeline Road Train Member

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    100,921
    Dec 18, 2011
    Michigan
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    Go to the dealer with your serial number and ask for them to print up the wiring diagram to figure it out. This may be a power switch that foes through the body computer and has a place that it ends up at
     
    Slowmover1 Thanks this.
  4. Slowmover1

    Slowmover1 Road Train Member

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    Oct 25, 2015
    Fort Worth
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  5. 6mmrem

    6mmrem Bobtail Member

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    Sep 16, 2018
    Neepawa,Mb. Canada
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    Similar question here so I won't start a new thread. I want to add a dual function pedestal light under the bunk. Clearance/signal. I have wires coming from bunk corner, that's switched in cab labeled spare. Question is where might I find a left/right signal feed? I know I could go off trailer plug, but really don't want to because if their is an issue down the road it will effect trailer lights. This is on a '18 567.
     

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  6. joey83854

    joey83854 Bobtail Member

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    Mar 1, 2009
    post falls id.
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    Look on the frame at the rear of the sleeper in the wire /air bundle. there might be a 3 wire plug that say something like snow plow lights or ??? I cant recall exactly but it is for l/r/taillight to tie into At least it was there on mine.Even comes withe the correct connector to tie into.Best i can tell you other than maybe splitting your cord and adding a junction box on the frame.
     
  7. 6mmrem

    6mmrem Bobtail Member

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    Sep 16, 2018
    Neepawa,Mb. Canada
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    I'll have a look. Thanks
     
  8. 6mmrem

    6mmrem Bobtail Member

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    Sep 16, 2018
    Neepawa,Mb. Canada
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    Found it. Thanks
     
  9. Ottoking

    Ottoking Bobtail Member

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    Jan 30, 2021
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    how do you connect to the three pin plug?
     
  10. Tntjarrell23

    Tntjarrell23 Bobtail Member

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    Apr 29, 2022
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    Thank you all alot . You all really helped me out
     
  11. Razz32

    Razz32 Bobtail Member

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    Dec 6, 2023
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    I have 2017 Peterbilt I’m trying to put an electric brake controller. On I have purchased everything I need for example 30amp fuses, electric brake controller, 10g 25f wire 7 RV Blade Plug to 7 Way Pin Type Trailer Electrical Adapter Connector with Mounting Bracket. Need help connecting this to the truck brake wire and hookup to the electric harness that connects to the trailer.
    Need help. Thanks
     
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