1998 Peterbilt 379 "AD Light"

Discussion in 'Peterbilt Forum' started by atbtrucking, Jul 31, 2022.

  1. atbtrucking

    atbtrucking Bobtail Member

    7
    0
    Jul 28, 2021
    South Louisiana
    0
    Hello fellow truckers,

    I have the mentioned equipment and I'm looking at the wiring diagram showing "AD LT" which is next to "Load LT". What is this AD Light? I've searched the internet with no luck as to what this means. Any help will be greatly appreciated.
     
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  3. Oxbow

    Oxbow Road Train Member

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    Nov 24, 2015
    Idaho
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    It's for the Marquis on the front of a cattle wagon - Ad (advertising) light.

    Just ####tin ya, I have no idea.
     
  4. blairandgretchen

    blairandgretchen Road Train Member

    12,048
    60,658
    Dec 9, 2011
    South west Missouri
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    1995 379 - left to right is

    Head
    Clearance
    Load
    Fuel L-R

    Next two are additional switches - is AD light “Additional Light” ?
     
    Rideandrepair, Oxbow and Last Call Thank this.
  5. RocketScott

    RocketScott Medium Load Member

    563
    892
    Apr 10, 2013
    Kentucky
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    The AD light comes on with the load lights according to the wiring diagram

    Aft Deck maybe?
     
  6. wore out

    wore out Numbered Classic

    14,338
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    Jun 5, 2013
    CHASIN THE DEVIL'S HERD
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    Thank God someone that knows the name on the front of a cow wagon. Burns my ### to hear all these kids call it a porch light
     
  7. Oxbow

    Oxbow Road Train Member

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    Nov 24, 2015
    Idaho
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    Ha, don't give me too much credit. I just heard it called that by this fella that has a heeler as a copilot, so I figured it the correct terminology, because that heeler knows his ####!
     
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