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Kenworth T800. Wiring

Discussion in 'Kenworth Forum' started by Perchie15, Jul 31, 2023.

  1. Jul 31, 2023 #1
    Perchie15

    Perchie15 Light Load Member

    237
    71
    Aug 16, 2021
    0
    2020 t800 I believe but I have no taillights just signal and brake, I came to a 8wire connection and some have power some don’t! But the problem is idk what the letters mean it goes like this R S T U V W X Y Z. I don’t know what does what anybody have a diagram? The dealer doesn’t seem like they will be helping me as it’s the attitude I got from him! Thanks
     

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    Perchie15, Jul 31, 2023
    Perchie15, Jul 31, 2023
    #1
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  3. Aug 4, 2023 #2
    kwcam

    kwcam Light Load Member

    193
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    Dec 29, 2012
    at the shop
    0
    That plug is more like an extension harness for trailer plug circuit. The tail lights of the truck are controlled through the chassis node.
    check the fuses at the fuse block next to the washer reservoir under the hood, they power lots of exterior lighting but park light circuit fuse is in the cab fuse panel. Most of the time I find a rubbed wire close to the connector at the tail frame of the truck.
     
    kwcam, Aug 4, 2023
    kwcam, Aug 4, 2023
    #2
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