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2020 Cascadia - Low Voltage Disconnect?

Discussion in 'Freightliner Forum' started by Ndirocco, Sep 2, 2019.

Page 1 of 2
  1. Sep 2, 2019 #1
    Ndirocco

    Ndirocco Bobtail Member

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    Sep 2, 2019
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    I’ve had this 2020 for about 2 weeks now. This morning, I stupidly turned on my microwave without having either the truck or APU running. So the truck started it’s low voltage thing, and turned off the 12v ports in the front of the truck, as well as my fridge.

    I tried idling for over an hour to get them to turn back on. I tried driving for an hour to get it to turn back on. I’ve even tried checking fuses, and resetting the inverter twice, though everything that runs off the inverter is working, including the microwave.

    I don’t want to lose all my food. Anyone have any experience with this happening, and how to fix it? It’s a holiday so of course EVERYONE is off. TIA
     
    Ndirocco, Sep 2, 2019
    Ndirocco, Sep 2, 2019
    #1
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  3. Sep 2, 2019 #2
    uncleal13

    uncleal13 Road Train Member

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    Humboldt, Sk
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    Hmm. One of the Sam modules controls the Low Voltage Disconnect.
    You could try shutting off the main battery cutoff switch for 15 mins, then turn back on. See if that helps to reset it.
     
    uncleal13, Sep 2, 2019
    uncleal13, Sep 2, 2019
    #2
  4. Sep 2, 2019 #3
    Ndirocco

    Ndirocco Bobtail Member

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    Sep 2, 2019
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    I’ll try that, thank you for the video!
     
    Ndirocco, Sep 2, 2019
    Ndirocco, Sep 2, 2019
    #3
  5. Sep 2, 2019 #4
    Ndirocco

    Ndirocco Bobtail Member

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    Sep 2, 2019
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    I don’t have that switch in my truck.
     
    Ndirocco, Sep 2, 2019
    Ndirocco, Sep 2, 2019
    #4
  7. Sep 2, 2019 #5
    bigkev1115

    bigkev1115 Road Train Member

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    Oct 23, 2009
    Alexandria, AL
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    In my 2020, my company has it set up where the outlet for the microwave only works if the truck or the APU is running.
     
    bigkev1115, Sep 2, 2019
    bigkev1115, Sep 2, 2019
    #5
  8. Sep 3, 2019 #6
    uncleal13

    uncleal13 Road Train Member

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    Humboldt, Sk
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    I looked but can't find anything on it. The New Cascadia Manual just says it you touch a switch on the effected circuit it should come back on after truck is running.
    May have a blown fuse somewhere.
     
    uncleal13, Sep 3, 2019
    uncleal13, Sep 3, 2019
    #6
    armo Thanks this.
  9. Sep 3, 2019 #7
    mhyn

    mhyn Road Train Member

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    Northridge, CA
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    on old Cascadia there is special relay on that circuit. it's called bistable relay. there must be also 10A fuse.
     
    mhyn, Sep 3, 2019
    mhyn, Sep 3, 2019
    #7
    uncleal13 Thanks this.
  10. Jun 15, 2022 #8
    wtokhi

    wtokhi Light Load Member

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    Nov 3, 2017
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    for this relay, where is it located? in the sam cab? have this problem on 2010 cascadia where the lights and 12v shut off with the ignition off, thanks
     
    wtokhi, Jun 15, 2022
    wtokhi, Jun 15, 2022
    #8
  11. Jun 17, 2022 #9
    armo

    armo Light Load Member

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    Jun 16, 2022
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    oh men don't ask him questions. He is thrown away from this forum :)
    Progressive low-voltage disconnect (PLVD) is in sam cab. The relay must be located on sam cab.
     
    armo, Jun 17, 2022
    armo, Jun 17, 2022
    #9
  12. Jun 18, 2022 #10
    wtokhi

    wtokhi Light Load Member

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    Nov 3, 2017
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    thrown away from the forum? what for?
     
    wtokhi, Jun 18, 2022
    wtokhi, Jun 18, 2022
    #10
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