Weird electrical issues still happening

Discussion in 'Freightliner Forum' started by Irishblood_83, Feb 16, 2021.

  1. Irishblood_83

    Irishblood_83 Bobtail Member

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    About a month ago the security panel on my 2021 freightliner cascadia went out. Also the dome light was going on and off by itself, however the dome light stopped. Now periodically I wake up to the truck not wanting to start. When I turn the key to the right all lights upfront flash on and off, and windshield wipers start going off. It's the weirdest thing I've ever seen. I'm linking a YouTube video to share exactly what's happening. If anyone has any ideas I'd appreciate it. It's only about 30 seconds. Thank you for your time.

     
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  3. InTooDeep

    InTooDeep Donner party survivor

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    MY 2020 does that when my master battery switch is in the off position. Not sure that helps you but you might try turning off then on again to check.
     
  4. Irishblood_83

    Irishblood_83 Bobtail Member

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    If I turn the main switch off, and let it sit for a week the truck won't do this. I'll turn the battery switch on, hop in and it fires right up every time.
     
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  5. InTooDeep

    InTooDeep Donner party survivor

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    Might be your problem right there.
     
  6. Happily Retired

    Happily Retired Road Train Member

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    :laughing-guffaw:wait, I'm sorry,,,:laughing3:, you guys, I swear, now it's possessed new Freightliners, isn't there any value today, I mean, this is a 6 figure machine,,,,THAT DOESN'T WORK,,,sorry, am I the only one that thinks this is unacceptable? Terrible.
     
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  7. woolybully35us

    woolybully35us Light Load Member

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    i would take it back to the dealer an make fix it or replace the truck under the lemon law.
     
  8. RocketyMan

    RocketyMan Medium Load Member

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    @Irishblood_83 Your truck might have issues with the sSAM having too much loctite on the threads for the GND and supply cables. This would explain your issues of dome lights going on/off. BUT, I am curious about what you mean "security panel." Is this something aftermarket?

    The BCA solenoid and cutoff switch don't have anything to do with this. Those are the number 1 improperly diagnosed parts, IMO.

    Take your truck in and ask the tech to search for SS 1034884 Unintended Dome Lamp Activation.
     
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  9. Irishblood_83

    Irishblood_83 Bobtail Member

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    The security system that my company put on the truck that uses a 4 digit code to be able to start the truck.
     
  10. Irishblood_83

    Irishblood_83 Bobtail Member

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    Also would that apply to the windshield wipers going off, as well as other lights in the front flashing on and off? The dome light actually stopped. It's more so dash lights, switches to unlocked my fifth wheel and dump air etc..
     
  11. RocketyMan

    RocketyMan Medium Load Member

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    @Irishblood_83 I'm not sure about the windshield wipers. They can have an issue "parking" when the park signal is not seen by the sSAM. This can occur after a keyon-keyoff event where the sSAM will attempt to park them even if the stalk switch is in the off mode. Most tech's don't really understand this nor test this circuit enough, extensively.

    I would still get the sSAM power studs checked.
     
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