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2018 and 2020 567 Spare Switches

Discussion in 'Peterbilt Forum' started by Animosus, Jan 25, 2023.

  1. Jan 25, 2023 #1
    Animosus

    Animosus Medium Load Member

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    We have a 2018 and 2020 567 with about 10 factory spare switches. I gather that these are all multiplexed and are not actual switches that you can tap directly into. So where did they hide all these outputs? There are a couple threads I've found but none have a definite answer and neither does the body builder manual. Is this something that has to be programmed with DAVIE? You'd think with all these #### switches it shouldn't be that difficult to use them for trivial little things.
     
    Animosus, Jan 25, 2023
    Animosus, Jan 25, 2023
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    Oxbow Thanks this.
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  3. Jan 26, 2023 #2
    QUALITYTRUCK

    QUALITYTRUCK Road Train Member

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    romulus,mi
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    The switches need to be enabled thru ESA.
     
    QUALITYTRUCK, Jan 26, 2023
    QUALITYTRUCK, Jan 26, 2023
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  4. Jan 26, 2023 #3
    Z800xp

    Z800xp Bobtail Member

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    Pardon my ignorance but what is esa ? Always wondered about the spare switches
     
    Z800xp, Jan 26, 2023
    Z800xp, Jan 26, 2023
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  5. Jan 27, 2023 #4
    QUALITYTRUCK

    QUALITYTRUCK Road Train Member

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    romulus,mi
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    ESA is Paccar software used for diagnosis/programming of electronics mostly non-engine related.
     
    QUALITYTRUCK, Jan 27, 2023
    QUALITYTRUCK, Jan 27, 2023
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  7. Jan 27, 2023 #5
    Z800xp

    Z800xp Bobtail Member

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    Thanks for the reply. So pretty much a dealer thing ?
     
    Z800xp, Jan 27, 2023
    Z800xp, Jan 27, 2023
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  8. Jan 28, 2023 #6
    QUALITYTRUCK

    QUALITYTRUCK Road Train Member

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    romulus,mi
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    Not really. Many of us shop owners have ESA along with all of the other OEM programs. Almost impossible to run a successful repair business without them.
     
    QUALITYTRUCK, Jan 28, 2023
    QUALITYTRUCK, Jan 28, 2023
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  9. Jan 28, 2023 #7
    Goodysnap

    Goodysnap Road Train Member

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    Your chassis may be different as well. The 2018 is surely ESA. The 2020 model may be VECU in which case is a VMux truck and the switches are done thru PVP and Davie. All digitaL dash and newer trucks=no more ESA
     
    Goodysnap, Jan 28, 2023
    Goodysnap, Jan 28, 2023
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    bjytech, QUALITYTRUCK and D.Tibbitt Thank this.
  10. Jan 28, 2023 #8
    QUALITYTRUCK

    QUALITYTRUCK Road Train Member

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    Excellent point Brother. Got a bit ahead of myself.
     
    QUALITYTRUCK, Jan 28, 2023
    QUALITYTRUCK, Jan 28, 2023
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  11. Jan 28, 2023 #9
    Diesel Dave

    Diesel Dave Last Few of the OUTLAWS

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    I have extra spare switches on my 2014, and I have insulating wiring with connectors that are tuck around different areas on the truck, like;, by the air cleaners, under the cab, under the sleeper, and by the front bumper. Just saying.
     
    Diesel Dave, Jan 28, 2023
    Diesel Dave, Jan 28, 2023
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