Will get back to you

 

For the billionth time, this is what the 'deal with a key' is:

1) The blade - many locksmiths can cut a blade for you. This will enable the key to unlock the door, using the lock cylinder in the driver's door. It will also turn the ignition switch and turn on accessories, etc. - but it won't, by itself, start the car.

2) Battery operated buttons - there is a small RF transmitter in the fob, operated by battery power, that sends commands to the car's SKREEM for door locking/unlocking/panic alarm. THis is a customer programmable function. YOu can program these buttons to any car using a super simple procedure. Having no batteries in the FOB will mean you can't remotely lock or unlock the car, but it won't stop from the key starting the car (see 3 below).

3) RFID chip - there is a small, black chip glued into the key. When you turn the key to "ON", RF energy is sent from the black ring around the switch to the chip in the key. The chip in the key responds with an encrypted signal - this happens very fast, such that, by the time you have turned the key to "START", the SKREEM knows your key is authorized and it tells the ECU to allow the car to start. If this chip is missing from the key or is not programmed to your car, the engine will turn over three times but the engine will not run. After that, the starter will not even engage. This is not a user-programmable function; and this is what makes getting a replacement key impossible at this time, as the secret codes needed to put into the chip are held by a firm that is not, right now, making keys.


IF the key he gave you has an RFID chip not programmed to your car, OR has no RFID chip - the key is useless for starting the car and always will be.

 

Again I thank you .

 

Hi,

I just purchased a 2005 Crossfire and one of the first things I asked the owner was how may keys do you have. (My question should have been how many working keys do you have).
It turns out, the driver key which the lock / unlock buttons don't work, and the spring is missing so he had a key ring and small cable tie holding it. It is missing the trunk button but started the car fine.

The "spare" key is pristine and all the buttons work, but when trying to start the car, it would start and run for a couple of seconds then die.

I ran home with the knowledge that all it needed was to be programmed. After running through the procedure, I now have the original key not able to turn at all, and the spare key will turn but not even start the car for the couple of seconds.

My feeling is the car got programmed to the spare key but is missing something? I left it as is so I don't dig myself into a deeper hole.

Any suggestions would be greatly appreciated.

Thanks...

-=phil-

 

The fact that the spare key starts the car for a couple seconds then it stops suggests that the RFID chip is not matched to the car. I'm not sure why the original key will not turn, but the second key does. Nonetheless, it sounds like if you can get the RFID chip from the original key into the second key that turns you would have one fully functioning key.
Go to the post on key disassembly.

https://www.crossfireforum.org/forum...estroying.html

You want to take the "transponder" (RFID chip) from the original key and replace the one in the second key with working fob with it. Two RFIDs in close proximity would not likely work.
Hope this fixes your problem and gets you one fully functioning key.

 

Thank you Magnetcred...

After reading through everything on this thread, that was my thought. I botch up the transponder, I'm really in trouble. No guts no glory, right?

I did contact NeedsWings and OEM keys are backordered until 12/31/2021. Since I know I have something that will start and run the car, I may send the whole lot to them.

This is my first Crossfire but owning and having owned a bunch of Saabs more or less used to this sort of thing...

 

SOS Diagnostics has keys.

 

Thanks Zeracer...

 

I am not sure if this is the correct thread to post in. I read the thread from the beginning and it seems there is/was a belief we had to live with the fear of SKREEM failure hanging over our heads.

So here is my story: Purchased a no crank no start 2005 limited coupe. The owner said he had the car about 18 months. The first four months were great. THEN the car tried to start a few times after which the electronics came on but the starter would not engage. It was a pretty garage ornament for the last 14 months.

After researching this forum and you tube for possible causes determined the SKREEM and key had lost "connection". Several hours of googling turned up a company (PRECISION ECU) in Illinois that said they could "delete" the SKREEM. I sent them the SKREEM, the ECU and $500. A week later received the SKREEM and the ECU with the "immobilizer" program either deleted or overridden (not sure which). Plugged the ECU back in and placed the SKREEM back WITHOUT connecting the three connectors (it is just sitting behind the dash display). I now have a functioning xfire. AND any correctly cut key will work. With the SKREEM deleted, I no longer need a VIN matched chip in my key. OR any chip for that matter. I have ordered a generic uncut key blank. Once it comes in I'll have a local lock smith cut the key to match and verify it works. If so... no more $200 keys required.

That is my experience yours might be different. Other than as a satisfied customer, I have no relationship with PRECISIONE.

PRECISIONECU.COM

 

Very interesting! Keep us posted on further progress.

 

One of these days I need to figure out why my stepdad has so many keys for the car. I dont know if they are all spares or what. I have like 7 or more keys. No clue if they all work with the car or not. This skeem eliminator method sounds cool though if I ever ran into problems with it.

 

I had one fob where the key worked find, but not the buttons. I thought maybe the batteries were dead, so I changed them in both fobs. Still only 1 fob worked with the buttons. Then I did this procedure, and now I have TWO fobs that work PERFECTLY!
This took only 30 seconds and worked as described!
THANKS SO MUCH!

 

Just bought an 05 Roadster and one fob did not work the locks this worked great