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trailer led

  1. LED trailer lights flashing a test pattern

    9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
    My 2007 9-3 has the trailer module and constantly flashes the trailer’s LED turn/brake lights. It sequentially lights one side (turn), both (brake), and the other side, a brief pause, then repeats. Nothing on the running light lead. Key out or engine running, car’s lights on or off, trailer...
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