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Viewing inactive codes 2012 VNL 780

Discussion in 'Volvo Forum' started by southbaydad, Sep 23, 2019.

Page 1 of 3
  1. Sep 23, 2019 #1
    southbaydad

    southbaydad Light Load Member

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    Dec 10, 2009
    Arizona
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    I find no info on this but is there sequence that will display inactive fault codes.
    Like by cycling key on and off a number of times or ?? To make a telltale light blink inactive fault codes.
    Thanks for any info
     
    southbaydad, Sep 23, 2019
    southbaydad, Sep 23, 2019
    #1
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  3. Sep 23, 2019 #2
    kapen

    kapen Bobtail Member

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    Jul 12, 2017
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    I've driven few Volvos and I don't know any trick to show inactive fault codes, also I don't believe there is any method available. Only way to find out I've known for years is to hook up computer with diagnostic software and read them out.
     
    kapen, Sep 23, 2019
    kapen, Sep 23, 2019
    #2
    southbaydad Thanks this.
  4. Sep 26, 2019 #3
    nasriza

    nasriza Road Train Member

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    This is the only way some dashes let you see inactive fault very rarely on new truck but if the dash does not show it there is no blink codes on volvo there hasnt been any since 2004.
     
    nasriza, Sep 26, 2019
    nasriza, Sep 26, 2019
    #3
    southbaydad Thanks this.
  5. Sep 28, 2019 #4
    southbaydad

    southbaydad Light Load Member

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    Dec 10, 2009
    Arizona
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    UPDATE
    Took truck to dealer $360.00 to get inactive codes read
    Haven’t researched yet but wanted to post see if any input from the forum specialists

    Dealers only recommendation was 7- 8 k for remove trans and tear down for inspection. Then parts and labor to put back together and reinstall. Potential 9-20 k for repair and may or may not fix problem. All they could do was guess that it was my intermittent “ dead pedal” problem.

    Codes were:

    Trans ECU mid130 psid 24 fmi1 —- range engagement data valid but “below” operational range. 1 inactive fault

    Trans ECU mid 130 PSID 24 Fmi 0 —- range engagement data valid but “above” operational range. 11 inactive faults

    Radio mid206 sid254 controller 1 fmi4 voltage below normal or shorted to lower voltage

    That’s all for now
     
    southbaydad, Sep 28, 2019
    southbaydad, Sep 28, 2019
    #4
  7. Sep 28, 2019 #5
    QUALITYTRUCK

    QUALITYTRUCK Road Train Member

    1,780
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    Jun 14, 2009
    romulus,mi
    0
    Now you have a starting place. Swap out transmission harness. Inexpensive ($300 ish). Not that labor intensive as far as harness replacement goes. I have done several for datalink failure. Even if it happens to be worst case scenario (transmission TCU failure) replacing the harness would be something you should do anyway.
     
    QUALITYTRUCK, Sep 28, 2019
    QUALITYTRUCK, Sep 28, 2019
    #5
    southbaydad Thanks this.
  8. Sep 28, 2019 #7
    southbaydad

    southbaydad Light Load Member

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    Dec 10, 2009
    Arizona
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    Ok thanks for the advice. I will check into it. Still have to research the codes to find out what that “range” description means. But new harness could be worth trying.
     
    southbaydad, Sep 28, 2019
    southbaydad, Sep 28, 2019
    #7
  9. Sep 28, 2019 #7
    nasriza

    nasriza Road Train Member

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    Chicago, IL
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    What kind of trans do u have is it Eaton auto which is what it sounds like or is it I shift. Most likely trans.
     
    nasriza, Sep 28, 2019
    nasriza, Sep 28, 2019
    #7
    southbaydad Thanks this.
  10. Sep 29, 2019 #8
    southbaydad

    southbaydad Light Load Member

    281
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    Dec 10, 2009
    Arizona
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    I shift. Bad trans.
    That’s what the dealer thinks but said it still might not fix problem. Most of what I researched about the inactive codes for out of range are leaning towards the ribbon cable in the trans. 20 k is slot of money to throw at a “possible” problem.
     
    southbaydad, Sep 29, 2019
    southbaydad, Sep 29, 2019
    #8
  11. Sep 29, 2019 #9
    southbaydad

    southbaydad Light Load Member

    281
    34
    Dec 10, 2009
    Arizona
    0
    Can the ribbon harness be done with trans in truck and doghouse removed.
    Does it need recalibration with the Volvo software program after ribbon cable is replaced?
     
    Last edited: Sep 29, 2019
    southbaydad, Sep 29, 2019
    southbaydad, Sep 29, 2019
    #9
  12. Sep 29, 2019 #10
    QUALITYTRUCK

    QUALITYTRUCK Road Train Member

    1,780
    1,726
    Jun 14, 2009
    romulus,mi
    0
    Sorry. Transmission must come out.
     
    QUALITYTRUCK, Sep 29, 2019
    QUALITYTRUCK, Sep 29, 2019
    #10
    southbaydad Thanks this.
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