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ABS Trailer symbol, Causes, and Fault Codes

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by CDLman63, Mar 14, 2020.

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  1. Mar 14, 2020 #1
    CDLman63

    CDLman63 Bobtail Member

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    Apr 22, 2018
    Hattiesburg, MS
    0
    I drive a Western Star 5700XE. I have the ABS Trailer alert ( symbol ) on constantly on my panel in front of my steering wheel. The yellow ABS light on the trailer is not on. I think there is a problem with the ABS electrical system on the truck ( not the trailer ). I have a Fault Code J1708 with no information on the date/time, MID, FMI, and PID/SID. However, there is another Fault Code J1939 with SA : “42 Headway Controller”, FMI : “19 Received Network Data in Error”, and SPN : 5606.
    Do the Fault Codes J1708 and J1939 have anything to do with the ABS System?
    Thank you,
    Ken Beard
     
    CDLman63, Mar 14, 2020
    CDLman63, Mar 14, 2020
    #1
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  3. Mar 14, 2020 #2
    Snailexpress

    Snailexpress Road Train Member

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    Rocky
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    Check is trailer ABS light working. It should blink for second every time you turn ignition ON.
    Tractor ABS communicate with trailer ABS on PLC power line communication. In other words thru central power wire. Bad connection in pigtail or bad ground can cause all type of weird codes.
     
    Snailexpress, Mar 14, 2020
    Snailexpress, Mar 14, 2020
    #2
    CDLman63 Thanks this.
  4. Mar 14, 2020 #3
    Dave1837

    Dave1837 Road Train Member

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    Is your ABS powered by the regular electrical line from your tractor? Or is there a separate line specifically for ABS
     
    Dave1837, Mar 14, 2020
    Dave1837, Mar 14, 2020
    #3
  5. Mar 14, 2020 #4
    AModelCat

    AModelCat Road Train Member

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    Trailer ABS runs completely independent of the truck. All truck does is supply 12 volt constant power down the 7 pin plug's center pin. In the event that it doesn't get its 12 volts I believe the trailer ABS module will boot up and operate when it gets power from the brake light circuit.
     
    AModelCat, Mar 14, 2020
    AModelCat, Mar 14, 2020
    #4
    CDLman63 Thanks this.
  7. Mar 14, 2020 #5
    CDLman63

    CDLman63 Bobtail Member

    45
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    Apr 22, 2018
    Hattiesburg, MS
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    Not sure, but I will check, and get back with u on that. Thx
     
    CDLman63, Mar 14, 2020
    CDLman63, Mar 14, 2020
    #5
  8. Mar 14, 2020 #6
    CDLman63

    CDLman63 Bobtail Member

    45
    15
    Apr 22, 2018
    Hattiesburg, MS
    0
    Could it be possible that getting a new pig tail would solve the problem?
     
    CDLman63, Mar 14, 2020
    CDLman63, Mar 14, 2020
    #6
  9. Mar 14, 2020 #8
    Anywhichwaybutloose

    Anywhichwaybutloose Light Load Member

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    Jun 24, 2017
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    Can you hook up to a different trailer or have someone hook to yours to help isolate the problem?
     
    Anywhichwaybutloose, Mar 14, 2020
    Anywhichwaybutloose, Mar 14, 2020
    #8
    AModelCat Thanks this.
  10. Mar 14, 2020 #8
    Flat Earth Trucker

    Flat Earth Trucker Road Train Member

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    Nov 19, 2018
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    A dirty or faulty ABS trailer sensor can trigger a tractor dash alert light.
     
    Flat Earth Trucker, Mar 14, 2020
    Flat Earth Trucker, Mar 14, 2020
    #8
  11. Mar 15, 2020 #9
    CDLman63

    CDLman63 Bobtail Member

    45
    15
    Apr 22, 2018
    Hattiesburg, MS
    0
    Yes, ABS trailer icon is working. The trailer yellow ABS light is on. I still think it is an electrical problem within the truck.
     
    CDLman63, Mar 15, 2020
    CDLman63, Mar 15, 2020
    #9
  12. Mar 15, 2020 #10
    CDLman63

    CDLman63 Bobtail Member

    45
    15
    Apr 22, 2018
    Hattiesburg, MS
    0
    Not sure, but I will find out & let you know
     
    CDLman63, Mar 15, 2020
    CDLman63, Mar 15, 2020
    #10
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