Question about 1998 Cadillac Seville

2 Answers

Need another key cut

I am in New Zealand and own a cadillac seville 1998. We dont have any where to get a spare key because of the chip in it. Can anyone suggest what we can do please. Thanks

Posted by on


2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

I had the same my case I had a key made at a local hardware store. They made the key and used the wrong blank(had wrong chip). When I used that key the theft deterent system kicked in. What you can do is measure the resistance of your chip (it is just a resistor) and solder it into the wiring under the steering wheel. I did it and it works fine.

Actually the reason I soldered the resistor in was that my car started failing to read the original keys for the car. The contacts that read the chip were bad....anyway now all my keys work. The downside is now the theft deterent of the chip is disabled. My car is a 97 and I just wish someone would steal it.

Let me know if you are going to try bypassing the "chip" and I will find the article that showed me how.

Posted on Oct 01, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has achieved Level 3.

  • Master
  • 726 Answers

You might have to send it over seas maybe to a key cutter

Posted on Jul 22, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

2000 cadillac eldorado. need a new key can i replace it myself? if so how?

the chip needs to be read then a new key cut with that chip

Apr 15, 2012 | 2000 Cadillac Eldorado

2 Answers

91 cadillac seville wont turn on state that its in theft mode microchip in key may be the problem need help what to do?????

The problem is the ign. lock cylinder NOT the key. The tiny wires have broken and you need to get the ign . lock cylinder replaced and a new chip key to fit it.

Jan 22, 2011 | 1991 Cadillac Seville

1 Answer

Is reading theft system and wont start

Try cleaning your key off... those keys have security chips and if you get the oily or dirt on them your car wont start. Or try using a spare key if you have one... Good Luck!

Feb 17, 2010 | 1997 Cadillac Seville

1 Answer

Cadillac seville won't start due to theft system

If you know how to solder, you can try building up the "chip" area on the key and reinserting it. That's the only thing that controls the PASSLOCK theft system.

Measure the resistance from one of the contacts to the other with an ohmmeter, and you can get those keys from eBay. Once you get the car home, order one for a couple bucks, and get it cut at your local hardware store.

When you order the new key, they will ask you for the resistance measurement across the resistor embedded in the key, and send you one that matches.

If you'd rather order one from the dealer, they are still available last I checked, but were significantly more expensive than the eBay option.

Jan 01, 2010 | 1990 Cadillac SeVille

2 Answers

Cadillac seville won't start

I've got an even cheaper and easier solution, instead of buying a new cylinder, find that plug and snip the orange wires going to the old cylinder.Then remove the resistor chip from the key and solder each of the the wires to each side. this will fool the car into thinking the correct resistor chip is in place, allowing you to use the original key or any copies with or without resistor chips. i just did this to my caddy and it roared to life! :)

Sep 20, 2009 | 1990 Cadillac SeVille

2 Answers

1998 cadillac seville sts air ride prob

Disconnect the - battery terminal for a minute and reconnect.
Good Luck

Jun 14, 2009 | 1998 Cadillac Seville

1 Answer

1998 honda accord won't start

He may have locked up the pin sequence. You might need to buy a new switch not that exspensive. Stay away from the dealership or it will be.

Apr 10, 2009 | 1998 Honda Accord

1 Answer

My 1991 cadillac seville will not start

Get a new cylinder put old key with chip in it. Find orange wire from old lock cylinder at bottom of steering column just under dash. Disconnect and connect new wire from new lock cyl. Get a copy of the old key for the old lock cylinder {no chip needed} to start car. Hide or mount new lock cylinder hidden under dash. Remove chip key to activate theft system.

Mar 13, 2009 | 1991 Cadillac Seville

1 Answer

Starting Disabled due to Anti Theft System in 94 caddy seville

probably needs a new ignition cylinder, the wires for the pass key chip inside the column tend to break after a while. i have repaired the wires in the past, but it is actualy better to replaced the assembly, you will also need to get new keys cut for the new cylinder, who ever cuts the keys will also need one of the old keys to check what pass key chip that you need.

Oct 20, 2008 | 1994 Cadillac Seville

Not finding what you are looking for?
1998 Cadillac Seville Logo

Related Topics:

93 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cadillac Experts


Level 3 Expert

77932 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Cadillac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides