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  1. S

    No 12 volt power to tow package trailer outlet plug

    Solved, had Tesla Service repair and they noted the following: Confirmed customer concern of trailer harness not receiving 12v. Found trailer harness connector needed retrofit to updated wiring configuration. Upon rewire found 12v now present at trailer harness. Trailer system nominal at this...
  2. S

    No 12 volt power to tow package trailer outlet plug

    I have a 2020 model x, I installed a P3 brake controller. The trailer brake system requires 12 volts power and we are not getting power from the factory plug in. The brake controller recognizes the trailer but we are not getting any power. Any ideas? Is there a fuse that needs to be...