Taillights Not Working??

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Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, Taillights Not Working?? in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; Drivers Side Only- When car is on only the passenger side top and middle bulb are on the drivers side ...
  1. #1
    Unique Distributing is offline Cadillac Owners Fanatic
    Automobile(s): 2005 Cadillac CTS
    Join Date
    Mar 2009
    West Palm Beach, Florida

    Taillights Not Working??

    Drivers Side Only-

    When car is on only the passenger side top and middle bulb are on the drivers side is completely off..

    Top light AKA brake light does work on drivers side when engaged.

    No running lights are working on the drivers side.


    Any suggestions?

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  3. #2
    s_tharsan's Avatar
    s_tharsan is offline Cadillac Owners Fanatic
    Automobile(s): 2006 CTS Sport
    Join Date
    Aug 2009
    Toronto, ON

    Re: Taillights Not Working??

    This is what I would do to narrow things down. Try taking both brake lamps out and switching all the bulbs from the left to the right side and right side to the left. If the other brake lamp now starts working you know for sure its the type of bulb or damaged bulb your using. If the problem is present you at least know its not the bulbs but something with the wiring that's causing the problem.

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