2014 cascadia dash gouges not working

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by istumped, Sep 23, 2021.

  1. istumped

    istumped Medium Load Member

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    Feb 8, 2015
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    Speed,tach,water,volts,oil pres,oil temp,trans temp. Intermittently work. You can turn the key on and all gauges sweep. All gauges do light up at nite. I checked all jumper wires. What wire power's these gauges? Some say j1587 or j1939? Needing help. Thanks
     

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  3. biopure22

    biopure22 Bobtail Member

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    Aug 22, 2021
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  4. istumped

    istumped Medium Load Member

    350
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    Feb 8, 2015
    0
  5. biopure22

    biopure22 Bobtail Member

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    Aug 22, 2021
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    Do the gauges do a initial sweep and then just don’t work??
     
  6. istumped

    istumped Medium Load Member

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    Feb 8, 2015
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  7. biopure22

    biopure22 Bobtail Member

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    Aug 22, 2021
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    Check your can bus network,you have 2 120 ohm terminating resistors on network,one of them may be bad
     
  8. istumped

    istumped Medium Load Member

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    Feb 8, 2015
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    Where is this located on truck? Thanks
     
  9. biopure22

    biopure22 Bobtail Member

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    Aug 22, 2021
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    I will send you a wire diagram later,I don’t have my tuffbook on me.
    But it’s on the CAN bus network in your truck ,it connects all of your ECMS,and it’s 2 terminating resistors at the end of each..but you can test them to see if one of them is bad from your connector hookup under your steering wheel,can’t tell you off the top of my head which terminals to check,but will when I get to my laptop later
     
  10. biopure22

    biopure22 Bobtail Member

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    Aug 22, 2021
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    You should start with checking that
     
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