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  1. M

    Trailer brake lights not working

    Took 3 months to get the part but the dealer in Hagerstown fixed it. Happy with this dealer!
  2. M

    Trailer brake lights not working

    Something that was mounted I believe in the back ceiling. It fixed the problem.
  3. M

    Trailer brake lights not working

    Was a module that was bad in the truck. Voltage was not going to the plug when you hit the brakes. I’ll let you know more details when I take it back in For the fix.
  4. M

    Trailer brake lights not working

    The tech said it was the trailer light module located somewhere in the back. When I go back in, I’ll get details.
  5. M

    Trailer brake lights not working

    Update, dealer checked it out today. Turns out a module was bad in the truck. Part ordered, should be here in 10 days
  6. M

    Start/Not Start

    Measure the DC voltage at the battery when the engine is not running. Should be 12-13 volts. Start the engine. Should go up to 13-14 volts if the alternator is working.
  7. M

    Trailer brake lights not working

    Thanks, will let you know the outcome.
  8. M

    Trailer brake lights not working

    Hello, I have a 2022 Wagoneer and discovered the trailer brake lights don’t work. Hook the trailer to another vehicle, and they work. Anybody else have this issue? Same symptoms when using the 4-pin or 7-pin connector.
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