Question about 1998 Cadillac Seville

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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

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I had the same problem...in 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

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

Posted on Jul 22, 2008

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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.

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