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Thread: Fiber Optic Door Lock Ring

  1. #1
    Carl Hanson is offline Cadillac Owners Member
    Automobile(s): 1998 Eldorado ETC
    Join Date
    Jun 2005
    Location
    Connecticut
    Age
    71
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    6

    Fiber Optic Door Lock Ring

    I'm looking for info on this system. I have L&R set ups which consists of the door lock with the ring that glows, fiber optic cable and housing that contains the magnifier lense. How does it work? What year Cadillac's had this option? Is the bulb a led or regular bulb? Is there a pigtail I can get from AC Delco or another source? Does anyone know a part number for the bulb connector so I could research finding what I need to get this system to work? Any information is appreciated.


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  3. #2
    elmysterio is offline Cadillac Owners Member
    Automobile(s): 2003 cadillac dts
    Join Date
    Apr 2012
    Posts
    45

    Re: Fiber Optic Door Lock Ring

    I had a 78 saeville with that feature and it used a light bulb that was mounted under the dash, I just replace the bulb and all was good.

  4. #3
    carnut is offline Cadillac Owners Master
    Automobile(s): 1999 BMW 740 Il. 2005 Jag XK8, 1988 Mercedes Benz 300 SE
    Join Date
    Feb 2003
    Location
    california
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    69
    Posts
    6,688

    Re: Fiber Optic Door Lock Ring

    Was a standard feature in Cadillacs starting in the early 70's. Most times the fibre optic line plugs into a lamp bezel in the door, like a courtesy light. And its a regular bulb, the line simply transfers the light thru it to the ring around the lock cylinder.


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