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Discussion in 'Volvo Forum' started by farmer.z, Sep 14, 2020.

  1. farmer.z

    farmer.z Bobtail Member

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    Sep 14, 2020
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    Wondering if someone could help me out. I'm sure that I'm just missing something obvious. We added a 2012 VNL to the fleet and want to change a few parameters. Some big ticket items are....

    Max Speed
    Max Cruise
    Cruise Trim
    i-Shift Performance Mode
    i-Shift Auto Neutral
    Dash Cluster Configuration (Add suspension pressure)
    LCM Current Threshold (Upgrade to LEDs)

    I have no problem purchasing the basic PTT for diagnostic purposes, but I'm not sure if it is capable of the above functions?
    Do you need the specific ECM programming functionality for the i-Shift and LCM programming?
    Can I even program any ECUs on a 2012 with the fleet-level PTT? On the website it says specific ECM programming for EPA13+ trucks?

    Talked to both the dealer and PTT support and I didn't really seem to get any consistent answers. Would someone here be able to shed some light on how Volvo software works?

    Thanks
     
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  3. sully91

    sully91 Bobtail Member

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    Oct 21, 2019
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    Hi!

    You do not need the "specific ECM programming funtction" until you start re-writing or programming ECUs. Such as getting a new ECU... deleting DPF... uprating the engine.

    You can program the 2012... I just programmed my 2012 daycab. Speed, cruise and the Headlights to LEDs.

    Let me know if you have any questions. If you are near NJ, CT area I can help with the programming!
     
  4. bonous

    bonous Light Load Member

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    May 31, 2014
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    I have a PTT how do you program the lights from OEM to LEDs? I go into program exterior lights but I don’t know what values to input in the lights. I don’t want to disable the warning but program it to work with LED lights without error. Thanks!
     
  5. sully91

    sully91 Bobtail Member

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    Oct 21, 2019
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    Hi!
    What year is your truck?
     
  6. bonous

    bonous Light Load Member

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    May 31, 2014
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    2007 VNL 780
     
  7. sully91

    sully91 Bobtail Member

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    Oct 21, 2019
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    Try changing the parameter on "P1Q8B" to "1"
    If that parameter is not available, let me know.
     
    bonous Thanks this.
  8. bonous

    bonous Light Load Member

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    May 31, 2014
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    Ok will do it tonight.
     
  9. bonous

    bonous Light Load Member

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    May 31, 2014
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    I do not see P1Q8B. When I go to Program, Parameter programming under my lighting it’s a drop down menu to select from.

    0 = Disable
    2 = Enable 100 mA
    10 = Enable 500 mA

    I’ve tried both option 2 and 10 still get the fault codes with LEDs.
     
  10. sully91

    sully91 Bobtail Member

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    Oct 21, 2019
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    Hmm... are you available for me to look over the software? I can check a few things via TeamViewer. Up to you. Just trying to help.
    You can message me.
     
  11. bonous

    bonous Light Load Member

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    May 31, 2014
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    That will be cool. I’m on the road right now, I don’t have a WiFi for Teamviewer but when I get home I’ll hit you up so you can check it out.
     
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