This little light of mine, driver side marker/turn signal illuminated

Discussion in 'Experienced Truckers' Advice' started by firemedic2816, Jun 6, 2025.

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  1. firemedic2816

    firemedic2816 Road Train Member

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    Okay so I’m having a brain fart, I’m on a home daily run leaving at 3 am and I LOVE IT No traffic MOST the Full Grown Bears in Ohio are still snoozing

    anyway got to the truck this morning and saw my driver side marker/turn signal illuminated! I was like da heck? Did I leave the lights on? NOPE as you can see in the pic all other lights are off
    Thoughts? Also when I got in truck fired up fine and had no warning lights anywhere
    Maybe I’m reading to much into it
    After 8ish yrs driving I have never seen ‘22 kw IMG_3153.jpeg
     
    Last edited: Jun 7, 2025
    firemedic2816, Jun 6, 2025
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  2. Kyle G.

    Kyle G. Road Train Member

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    Walk into the light my son.
     
    Kyle G., Jun 6, 2025
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  3. tscottme

    tscottme Road Train Member

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    Never saw that.
     
    tscottme, Jun 6, 2025
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  4. 062

    062 Road Train Member

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    Does it have a automatic light setting on the headlight switch?
    If you have a battery disconnect switch flip it off for a few minutes.
    I don’t really mess with anything paccar much, but it’s likely a module that didn’t shutdown properly.
     
    062, Jun 6, 2025
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  5. Moosetek13

    Moosetek13 Road Train Member

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    Are wires even connected to what they are going to anymore? Fuse boxes don't count, relays don't count.
    The answer is probably NO, because everything seemingly goes through a CPU at some point.
    Every little thing is controlled by a computer.

    Bits and bytes, zero's and one's.
    One zero not turned to a one for some random reason... there is your stray light.

    So yes, you are reading too much into this.
     
    Moosetek13, Jun 7, 2025
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  6. ducnut

    ducnut Road Train Member

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    It’s a PACCAR and there is a computer module for everything. That light is controlled by the Body Control Module (BCM). You’re going to have more random stuff coming your way, until the BCM is replaced. Most likely, your shop will do nothing, because replacement is the only sure way to diagnose a failing module. If the truck starts and runs, no one else but you cares. And, PACCAR sucks!
     
    ducnut, Jun 7, 2025
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  7. firemedic2816

    firemedic2816 Road Train Member

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    Agree 100% about PACCAR
     
    firemedic2816, Jun 7, 2025
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  8. firemedic2816

    firemedic2816 Road Train Member

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    Kinda what I figured this thing has been a PITA Dec, Jan and Feb we got to know the local tow companies fairly well. Supposedly we are supposed to turn in the trucks at 450,000 miles or so and I just rolled it to 480,000 yesterday so we will see, just gonna send it for know

    thank you for the replies
    Stay safe and keep the shiny side up
     
    firemedic2816, Jun 7, 2025
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  9. firemedic2816

    firemedic2816 Road Train Member

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    Noooo I don’t wanna haha
     
    firemedic2816, Jun 7, 2025
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  10. firemedic2816

    firemedic2816 Road Train Member

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    It does not have a automatic headlight switch nor battery disconnect
     
    firemedic2816, Jun 7, 2025
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