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Volvo vnl d12 j1939 data link erratic no communication

Discussion in 'Volvo Forum' started by Larellsharell, Apr 11, 2024.

Page 2 of 3
  1. Apr 13, 2024 #11
    Larellsharell

    Larellsharell Bobtail Member

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    Jul 22, 2021
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    This how it looks could that have been the reason
     

    Attached Files:

    Larellsharell, Apr 13, 2024
    Larellsharell, Apr 13, 2024
    #11
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  3. Apr 13, 2024 #12
    Inderjit

    Inderjit Medium Load Member

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    Sep 17, 2017
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    I'm not sure what that is. How are the battery terminals? Clean and tight.
    What was the resistance between pins C and D in the data connector with the key off.
     
    Inderjit, Apr 13, 2024
    Inderjit, Apr 13, 2024
    #12
  4. Apr 13, 2024 #13
    Larellsharell

    Larellsharell Bobtail Member

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    Jul 22, 2021
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    It's one of the power supply wire from the starter and with key off pin C 0.46 and pin D 0.47
     
    Larellsharell, Apr 13, 2024
    Larellsharell, Apr 13, 2024
    #13
  5. Apr 13, 2024 #14
    Inderjit

    Inderjit Medium Load Member

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    Sep 17, 2017
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    The reading between C and D with the key off should be very close to 60 Ohms.
     
    Inderjit, Apr 13, 2024
    Inderjit, Apr 13, 2024
    #14
  7. Apr 13, 2024 #15
    Larellsharell

    Larellsharell Bobtail Member

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    Jul 22, 2021
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    Those the reading i was getting
     
    Larellsharell, Apr 13, 2024
    Larellsharell, Apr 13, 2024
    #15
  8. Apr 13, 2024 #16
    Inderjit

    Inderjit Medium Load Member

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    Sep 17, 2017
    0
    0.46 and 0.47 those look like voltages. You need to set the multimeter on the Ohm scale.
     
    Inderjit, Apr 13, 2024
    Inderjit, Apr 13, 2024
    #16
  9. Apr 13, 2024 #17
    Larellsharell

    Larellsharell Bobtail Member

    15
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    Jul 22, 2021
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    Which setting is that on mines
     

    Attached Files:

    Larellsharell, Apr 13, 2024
    Larellsharell, Apr 13, 2024
    #17
  10. Apr 13, 2024 #18
    Inderjit

    Inderjit Medium Load Member

    638
    619
    Sep 17, 2017
    0
    Inderjit, Apr 13, 2024
    Inderjit, Apr 13, 2024
    #18
  11. Apr 13, 2024 #19
    Larellsharell

    Larellsharell Bobtail Member

    15
    0
    Jul 22, 2021
    0
    Ok i got it ill do it tomorrow also if it reads the like voltage or wrong voltage what direction and iam looking to go in by chance
     
    Larellsharell, Apr 13, 2024
    Larellsharell, Apr 13, 2024
    #19
  12. Apr 14, 2024 #20
    Inderjit

    Inderjit Medium Load Member

    638
    619
    Sep 17, 2017
    0
    The resistance with the key off should be 60 Ohms plus or minus maybe 5 Ohms.
     
    Inderjit, Apr 14, 2024
    Inderjit, Apr 14, 2024
    #20
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