Question about 1994 Cadillac DeVille

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94 Cadilac deville won't start due to theft system. Checked fuses, cleaned key,used other key still won't start what else can be wrong?

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Lock and unlock drivers side door with the key will disable the alarm system

Posted on Oct 30, 2010

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Posted on Jan 02, 2017

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I have a cadilac sedan deville 1994 and every time i turn it on it says that i have to wait 3 minutes due to theft system starting disable why is that?


It is having a hard time reading your chip in your key. I have the same problem on my 99. You can get them replaced but there not cheap.

Nov 20, 2010 | 1994 Cadillac DeVille

2 Answers

How do u disable a 94 cadillac deville anti theft system


U can bypass it (called the VATS system) but not fully disable it, what is done mimics the key code to fool the VATS module into sending a OK to start signal to the fuel injection computer (called the ECM). go to the web link below for instructions on the bypass.

http://vats.likeabigdog.com/

Oct 29, 2010 | 1994 Cadillac DeVille

1 Answer

94 cadillac deville...car will not start or turn over because the security light blinks on and off. had a new key made at the dealer and performed the relearn procedure..I put the key in the RUN position...


As the prescribed method isn't working it would seem likely the antitheft system is broken and should be checked by a professional.

Electronics aren't bulletproof and at over 20 years old the ones fitted to your car are 20 years less robust and 20 years less sophisticated and easily damaged by such things as welding, battery charging, jump starting or even nearby lightning strikes. Such instances often do not cause obvious damage immediately but rather have a weakening effect so the final breakdown happens later, maybe years later.

Mar 14, 2017 | 1994 Cadillac DeVille

2 Answers

94 Cadillac deville will not start due to security system it states to take key out of ignition and try to restart in 3 minutes and still nothing I have replaced the starter and still nothing but...


this seems like the theft prevention system, same as on my dads cadi, the chip in the key may be bad,but this is an issue best resolved at a dealership. the computer may need replacing, but its about 1k. take it to a competant gm dealership.

Nov 07, 2009 | 1994 Cadillac DeVille

1 Answer

94 deville wont turn over, i think my alarm is in theft mode


Have the ignition fuses replaced and have the shop that installed the remote start fix the main power sorce for their unit.

Jun 14, 2009 | 1994 Cadillac DeVille

1 Answer

Car wont start or turn over


Try cleaning the key "chip" resistor and if this doesn't work try the other key.

Dec 15, 2008 | 1994 Cadillac DeVille

1 Answer

1994 cadillace anti theft system


I just had this same problem with a '96 . do you have a vats key in your '94? you need to bypass the VATS system. read some of the blogs on this site and it will tell you how to do it. I fixed mine with a $2 resistor from radio shack.

Oct 08, 2008 | 1994 Cadillac DeVille

3 Answers

Wont start


it is in the ignition it is a little small wire that is broken off and you need to replace the igintionjust hade this problem the worst time finding it out good luck

Sep 22, 2008 | 1997 Cadillac DeVille

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