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Thread: 90 deville - high beam switch?

  1. #1
    cad_90's Avatar
    cad_90 is offline Cadillac Owners Fanatic
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    90 deville - high beam switch?

    i just got a 1990 sedan deville, and found out that the high-beam circuit was altered by the previous owner.

    the wires going to both bulbs were cut, and the lights were re-wired to a toggle switch in the driver door. power for the lights was routed directly from the fuse panel.

    needless to say, i ripped all of that wiring out, (which was done with the wrong gauge wire, and wire nuts... ), and proceeded to splice the bulbs back to their original wires.

    only then did i realize that the high beam switch does not work. it does not even click into the off/on positions as it should, which makes me suspect it was removed possibly?

    anyway my question is, where exactly is the actual switch located? is it in the turn signal switch/cam assembly?

    is it a seperate switch, or integrated with the turn siganl switch?


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  3. #2
    DaveSmed's Avatar
    DaveSmed is offline Cadillac Owners Connoisseur
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    Re: 90 deville - high beam switch?

    It is located farther down the steering column, by the ignition switch if you are familiar with its location. Gotta love those little suprises you find.... people that think they know what they are doing are dangerous when it comes to wiring.....

  4. #3
    cad_90's Avatar
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    Re: 90 deville - high beam switch?

    thanx for the info.

    so its on the same side as the ignition switch?



    yeah i also found out that the colling fan system was modified in a similar manner. the original wiring was hacked/bypassed, and replaced with direct wiring. i just got done putting the correct fan motor resistor assembly, and wiring the thing back into the relay circuit. all is good now with that. i guess the guy who did it didn't realize that the car has a multi-speed automatic fan control system.

  5. #4
    DaveSmed's Avatar
    DaveSmed is offline Cadillac Owners Connoisseur
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    Re: 90 deville - high beam switch?

    Well, kinda. its actually closer to the drivers door, under the instrument panel. The ignition lock cylinder actually controls a switch mounted farther down the column.

  6. #5
    cad_90's Avatar
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    Re: 90 deville - high beam switch?

    i found the switch, thanx. replaced it with one from an 88 deville. works fine now.

  7. #6
    N0DIH's Avatar
    N0DIH is offline Cadillac Owners Master
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    Re: 90 deville - high beam switch?

    While you are at it, modify it!! And retain FULL factory appearance....

    http://www.geocities.com/rodeodrive/...ior_flash_pass

    http://tech.oldsgmail.com/eint_flash.html

    Being that Most GM columns up to 1995 ish are the same from the firewall up, this lends itself to most GM cars from 1969 to 1995ish.

    Enjoy!!
    Tom


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