Question about Cadillac DeVille

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1995 Cadillac Deville, Left rear Brake light and turn signal ar dim, Bulbs have been replaced. When headlights are on and you push brake, ;left rear light goes out. Any idea? Thanks

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That means you have a poor ground wire to the lamps

Posted on Mar 28, 2011

  • 2 more comments 
  • frank thomas wilson
    frank thomas wilson Mar 28, 2011

    check for any corrosion at the sockets and spliced areas in the harness

  • trickydic1 Mar 28, 2011

    Thanks, I will check that.

  • frank thomas wilson
    frank thomas wilson Mar 31, 2011

    what did you find?

  • trickydic1 Mar 31, 2011

    Its on my mothers car and I have not had a chance to go check it yet, I will update after I check by this weekend. Thanks

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Posted on Jan 02, 2017

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Pull the bulb out of both left side turn signals and check the filaments. As these are double filament bulbs, sometimes the filaments break and lay across the other creating a feedback issue.

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Hi Ahunley, Sounds like you have cross the connection wires to the unit ( positive to earth & earth to positive) Try swapping the connectors over.

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