Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

Results 1 to 12 of 12

Thread: Door wont unlock with key fob

  1. #1
    cadillac griff is offline Cadillac Owners Fanatic
    Automobile(s): Deville 03
    Join Date
    Aug 2013
    Location
    Baltimore
    Posts
    177

    Door wont unlock with key fob

    Any suggestions on wats wrong, trunk, alarm n door lock work, just won't unlock door!! And yes I changed the battery ,same result!


  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
    Automobile(s): 2001 Seville STS, 1990 Seville (RIP), 1972 Sedan Deville
    Join Date
    Sep 2010
    Location
    East Boston MA.
    Age
    29
    Posts
    26,323
    Pop the fob apart again, and check for dirt between the rubber button pad and circuit board.

  4. #3
    cadillac griff is offline Cadillac Owners Fanatic
    Automobile(s): Deville 03
    Join Date
    Aug 2013
    Location
    Baltimore
    Posts
    177
    I'll try now thx

  5. #4
    rodnok01's Avatar
    rodnok01 is offline Cadillac Owners Master
    Automobile(s): 98 DeVille, 97 DeVille d'Elegance
    Join Date
    Feb 2012
    Location
    NC
    Posts
    6,702

    Re: Door wont unlock with key fob

    Do you have another fob and does it work?
    The battery holders come loose and another part is know to work loose and needing soldering. Think maybe N*caddy had a post about them... I have soldered all mine I think at one time or another.

  6. #5
    cadillac griff is offline Cadillac Owners Fanatic
    Automobile(s): Deville 03
    Join Date
    Aug 2013
    Location
    Baltimore
    Posts
    177
    Nope Carmax gave me one fob! I'll have to check for that soldering posts because cleaning it didn't work !!!

  7. #6
    delerium75's Avatar
    delerium75 is offline Cadillac Owners Fanatic
    Automobile(s): 1991 STS, 1992 Fleetwood, 1987 Maxima wagon
    Join Date
    May 2008
    Location
    Bay City, MI
    Age
    42
    Posts
    276

    Re: Door wont unlock with key fob

    The underside of the remote buttons have some kind of coating that works with the electrical contacts to make the button work. If your other buttons work, take a look at the underside of the button pad and note if that button is worn (looks different in any way compared to the other buttons...like maybe a very black center compared to the others). Might be able to get away with a replacement button pad...eBay has them for newer remotes with just the pad or a replacement shell (minus electrical bits).

  8. #7
    amunderdog is offline Cadillac Owners Connoisseur
    Automobile(s): 1994 SLS x 2 ---- 1993 Eldorado Sport ----- 1994 Deville 4.9
    Join Date
    Feb 2010
    Location
    Sunbright, TN
    Posts
    1,538

    Re: Door wont unlock with key fob

    "Door wont unlock with key fob"
    A door or all doors?

  9. #8
    cadillac griff is offline Cadillac Owners Fanatic
    Automobile(s): Deville 03
    Join Date
    Aug 2013
    Location
    Baltimore
    Posts
    177
    Quote Originally Posted by amunderdog
    "Door wont unlock with key fob" A door or all doors?
    DoorS , my bad.... Lock , trunk , alarm are all fine, door unlock button does nothing tho

    ----------

    Quote Originally Posted by delerium75
    The underside of the remote buttons have some kind of coating that works with the electrical contacts to make the button work. If your other buttons work, take a look at the underside of the button pad and note if that button is worn (looks different in any way compared to the other buttons...like maybe a very black center compared to the others). Might be able to get away with a replacement button pad...eBay has them for newer remotes with just the pad or a replacement shell (minus electrical bits).
    I was lookin on ebay while posting this and I saw a couple replacements , thx I think that's where I might have to look because that lil black button on the rubber pad appears to not be as full/depth as the other three!

  10. #9
    amunderdog is offline Cadillac Owners Connoisseur
    Automobile(s): 1994 SLS x 2 ---- 1993 Eldorado Sport ----- 1994 Deville 4.9
    Join Date
    Feb 2010
    Location
    Sunbright, TN
    Posts
    1,538

    Re: Door wont unlock with key fob

    There is supposed to be a way to test a remote fob.

    I thought this was interesting

  11. #10
    cadillac griff is offline Cadillac Owners Fanatic
    Automobile(s): Deville 03
    Join Date
    Aug 2013
    Location
    Baltimore
    Posts
    177
    I just got my new fob(rubber pad n shell) and still same result.... Everything works but door unlock button! I followed a link as well which mentioned sandpaper n alcohol to the board, still nothing! Any other suggestions!???

  12. #11
    basscatt's Avatar
    basscatt is offline Cadillac Owners 10000+ Posts
    Automobile(s): 2003 DHS - two-2002 DHS's, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
    Join Date
    Feb 2004
    Location
    Minnesota
    Age
    65
    Posts
    15,701

    Re: Door wont unlock with key fob

    Quote Originally Posted by cadillac griff View Post
    I just got my new fob(rubber pad n shell) and still same result.... Everything works but door unlock button! I followed a link as well which mentioned sandpaper n alcohol to the board, still nothing! Any other suggestions!???
    ========================
    inspect the printed circuit board - with a magnifying glass -
    specifically the soldered joint for the UNLOCK button -

    these are "cold-soldered" joints -
    and if/when the solder joint cracks - that button will simply not work -

  13. #12
    cadillac griff is offline Cadillac Owners Fanatic
    Automobile(s): Deville 03
    Join Date
    Aug 2013
    Location
    Baltimore
    Posts
    177
    Ok I'll try that


Bookmarks

Cadillac Posting Rules

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Read about Lincoln | Buick | Kia Forte Forum