2015 Peterbilt 389 electrical

Discussion in 'Trucks [ Eighteen Wheelers ]' started by russtrucker, Oct 23, 2014.

  1. russtrucker

    russtrucker Road Train Member

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    Mar 27, 2012
    Central PA
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    I work at one company as a mechanic. We tested a new 389 glider into a old lowboy that had electrical issues. After we finished working with the trailer, unplugged the wire connection, and I drove that truck back to hill to park. When I drove, it the dash alerted that the truck has circuit failure. What made a new truck have circuit failure?
     
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  3. S M D

    S M D Road Train Member

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    Mar 15, 2012
    sacramento ca
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    Head light" tail light? Fog light? Usually volvo does that
     
  4. Joanna

    Joanna Bobtail Member

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    Apr 20, 2020
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