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brake controller question

Discussion in 'Tow & Trailer' started by leadfoot067, Jun 18, 2005.

  1. leadfoot067

    leadfoot067 1/2 ton status

    May 14, 2001
    Likes Received:
    puyallup, washington
    i have an old school controller on my truck...has the brake line and 3 wires....the blue one goin to the trailer has power all the time...and increases when the brakes r applied...does this sound right? seems like to me it shouldnt be hot all the time? the controller is a warner electric brand...prolly new in 1983 with the truck....

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