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data link shock

Discussion in 'Volvo Forum' started by rdrsal, Mar 22, 2012.

  1. Mar 22, 2012 #1
    rdrsal

    rdrsal Bobtail Member

    16
    0
    Sep 2, 2009
    Kyle, Tx
    0
    I was having a little welding done on my truck when the welders cable that had a little fray in it came in contact with my chain box causing my truck to shut off. it started back up just fine, but i didnt notice till after he left that i now have a DATA LINK BROKEN message on my dash (codes:
    mid 140 sid 250 fmi 12). also my speedometer and tachometer and qualcomm do not work either.
    If anybody can help me with whats wrong and how to fix it that would be great... thanks
     
    rdrsal, Mar 22, 2012
    rdrsal, Mar 22, 2012
    #1
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  3. Mar 22, 2012 #2
    truckmechanic

    truckmechanic Medium Load Member

    534
    140
    Jan 14, 2012
    Hi Desert Ca
    0
    Check the fuses.next time disconnect the neg batt cable.also the ecm connectors if possible
     
    truckmechanic, Mar 22, 2012
    truckmechanic, Mar 22, 2012
    #2
  4. Mar 24, 2012 #3
    Pablo-UA

    Pablo-UA Road Train Member

    7,604
    1,640
    Oct 11, 2010
    Borispol, Ukraine
    0
    any ECU may be damaged and datalink is short. It is common damage with welding.

    First of all, turn ign off and check for datalink (J1587/1708) resistance, must not be short! usually 60 ohm

    After that unhook ECUs one by one till datalink start working, start with frame ABS unit.
     
    Pablo-UA, Mar 24, 2012
    Pablo-UA, Mar 24, 2012
    #3
    bullhaulerswife Thanks this.
  5. Aug 1, 2014 #4
    fleetwood1

    fleetwood1 Bobtail Member

    7
    0
    Dec 1, 2012
    0
    thanks to pablo for giving wondefull tips
     
    fleetwood1, Aug 1, 2014
    fleetwood1, Aug 1, 2014
    #4
  6. Aug 9, 2018 #6
    callum pick

    callum pick Bobtail Member

    1
    0
    Aug 9, 2018
    0
    Hi I’ve got a Volvo fm 13 litre 2010 model and its coming up on the dash with a data link fault and the engine will not start the fault code is mid 140 sid 250 appreciate any ideas thanks
    I’ve got a Volvo fm
     
    callum pick, Aug 9, 2018
    callum pick, Aug 9, 2018
    #6
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