$4 Fix to Door Handle Micro Switch Woes
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Cadillac STS Forum - 2005 through 2012 Discussion, $4 Fix to Door Handle Micro Switch Woes in Past Cadillac Vehicle Discussion; Here's how you can replace those pesky switches: Follow the handle removal steps in this thread: http://www.cadillacforums.com/forums...ement-how.html If you determine ...
  1. #1
    ottawagta is offline Cadillac Owners Member
    Automobile(s): 2006 STS
    Join Date
    Jul 2005
    Location
    Ottawa Valley
    Posts
    40

    $4 Fix to Door Handle Micro Switch Woes

    Here's how you can replace those pesky switches:

    Follow the handle removal steps in this thread: http://www.cadillacforums.com/forums...ement-how.html

    If you determine it is the microswitches, order a bunch of these (2/door, and get some spares): http://canada.newark.com/honeywell-s...35?Ntt=86r9335

    Remove the microswitch harness from the handle. With a fine screwdriver, remove the potting the bottom of the switches. Draw a diagram of how the wiring looks, and switches are placed in the holder. Once you have removed enough potting, the switches can be pushed out of the holder by pushing up on the bottom (wire side of the switches). Unsolder the wires from the switches (you made the diagram, right?)

    Here is a pic with the holder, switches removed, with new switch.
    http://www.cadillacforums.com/forums...1&d=1365120053


    Insert the new switches into the housing. They will only fit in one direction, and their body should be flush with the housing when in completely:

    http://www.cadillacforums.com/forums...1&d=1365120362

    Now, solder the wires accoring to your diagram.

    http://www.cadillacforums.com/forums...1&d=1365120941

    Lastly put potting compound on the connections. Do not use silicone as some kinds can damage the connections due to acid released during the cure. My low tech potting compound was a hot glue stick (it seems to work fine). It may be beneficial to first place the switch harness back into the handle assembly, to check how the wires exiting the switch housing relate to the handle body before potting (otherwise the wires may not clear the handle body).

    Installation is reverse to removal, make sure to read the note about this in the removal instructions posted at the start of this thread. Grease all plastic to plastic interfaces, it makes reassembly easier.

    Enjoy your work!
    Attached Images

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