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07 freightliner century series 60 14L ABS Light Issue

Discussion in 'Trucks [ Eighteen Wheelers ]' started by firecatf7333, Jan 2, 2019.

  1. Jan 2, 2019 #1
    firecatf7333

    firecatf7333 Light Load Member

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    Oct 28, 2012
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    07 freightliner century series 60 14L

    Looking for advice to see if I can fix before I take truck to Mechanic. The Trailer ABS Light does not come on when turning key 1 turn and then turn off like it's supposed to. I used a different truck last week and the ABS trailer light did cycle on the dash and the back of the trailer like it's supposed to, indicating this is a truck issue. The only time the dash and light comes on is when I apply brakes. I was told the truck isnt supplying continuous power to the trailer because the 7 pin on the connector isn't energized. If I ran a wire in pin 7( believe it's middle) would that solve problem?
     
    firecatf7333, Jan 2, 2019
    firecatf7333, Jan 2, 2019
    #1
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  3. Jan 2, 2019 #2
    xsetra

    xsetra Road Train Member

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    Correct. The blue wire in the center of your pigtail is the abs circuit. It should be live with the key on.
    Good luck

    I don't think just running power to the center pin will fix your dash abs light. It should fix your trailer abs light function.
     
    Last edited: Jan 2, 2019
    xsetra, Jan 2, 2019
    xsetra, Jan 2, 2019
    #2
  4. Jan 3, 2019 #3
    firecatf7333

    firecatf7333 Light Load Member

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    Oct 28, 2012
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    The Dash trailer abs light should work in conjunction with the light on the trailer. What else could the problem be
     
    firecatf7333, Jan 3, 2019
    firecatf7333, Jan 3, 2019
    #3
  5. Jan 3, 2019 #4
    xsetra

    xsetra Road Train Member

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    Aug 21, 2011
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    If he runs a hot feed to the center pin from the battery, ignition switch or fuse panel bypassing the ABS controls in the
    Truck. The trailer has it's own ECU that will work independently from the truck.

    Running power to the center pin is a temporary fix for the trailer ABS. This doesn't fix the real problem.

    The power for the center pin should come from the ABS controller in the truck.
    The "real problem" is a broken connection (broken wire, blown fuse, bad ECU) from the truck ECU to the center pin in the pigtail.
     
    xsetra, Jan 3, 2019
    xsetra, Jan 3, 2019
    #4
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