2008 T660 Trailer brake lights don't work

Discussion in 'Kenworth Forum' started by Hype6477, Sep 1, 2016.

  1. Hype6477

    Hype6477 Light Load Member

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    Thank you so much!
     
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  3. mitchtazz

    mitchtazz Road Train Member

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    No problem, I couldn't sleep for some odd reason.
     
  4. Madtrucker3

    Madtrucker3 Bobtail Member

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    Feb 10, 2014
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    Did you fix it? I have same exact truck same issue. What was prob
     
  5. mitchtazz

    mitchtazz Road Train Member

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    Pop your hood, and look dead center of the firewall, there will be a medium size black box with three decent sized wires coming out if it.

    One wire is actually a hot feed going to two fuses. Chances are that your 50amp fuse is blown. Easy fix, bad news is no one really carries that fuse. I had to order mine off eBay. They're cheap as all hell though.
     
  6. Hype6477

    Hype6477 Light Load Member

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    Nope, still running the jump wire to the relay. Fuse is good took it to kenworth and they couldn't find the issue....
     
  7. mitchtazz

    mitchtazz Road Train Member

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    Is the 50amp fuse on the firewall good? Mine was blown and is what was causing all of my problems.
     
  8. Hype6477

    Hype6477 Light Load Member

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    Yes it is. I unjumped the relay took it into the dealership due to an accident. The dealership couldn't figure out the issue nor did I want to pay them what they quoted me to fully diagnose the issue.
     
  9. mitchtazz

    mitchtazz Road Train Member

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    If you want to have another go at it, I'm not really doing anything right now.
     
  10. Hype6477

    Hype6477 Light Load Member

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    I would love to but I need to take a rain check, I am currently behind on my current work load.
     
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