Hello chaps. Do hope everyone is ok. I'm facing a problem with my 2000 XK8. I received a code P1260 security input , which turned out to be the key transponder. Sometimes it operates sometimes not. When not, it's just shuts down the engine . The green one ( vallet) operates normally.
Problem is that I've lost my key security code. Any ideas on what to do ?

Thanks a lot !

 

Not sure what your asking, the 4digit security code was basicly to unlock the radio after battery replacement but most of the threads on that topic say that radio usually does not require it. Are you thinking that the code can be used to calibrate the chip in the key because it can't needs a dealer or someone with special software to program the tibbe key
Funny thing I just got a spare cut and am going to dealer next week to have it programed.
Please give more info to the forum

 

Jeremy thanks. When I called the dealer they requested the code for the TIBBE key. I've got the radio one but that's not what I meant. The transponder on the key is getting crazy , and the immobilizer can't recognize it. Hence shuts the engine down. My mechanic said that it's a key problem. But why they requested the TIBBE code? Is the VIN covers that as well ?
Any ideas on the cost for a new key and reprogramm ?

 

Key cost me $10.00 on EBay cutting it cost me another $30.00 and some time to find a lock smith who could do it haven't had it programed yet local dealer says $80.00
I have not heard of a code for programming a key maybe someone more knowable on the forum will chime in. Possibly something to do with the vin?
FYI chips don't usually fail on and off at least not in my experience I have worked on cpu controlled equipment for a very long time and never seen that happen I would be more suspicious of the receiver in the ignition assembly.

 

When I did research to add keys to my car (it only came with just one), I found this vendor had good information: americankeysupply.com

You have to get the right key, and have it cut to the proper tibbe code. There are online guides to help you read the tibbe code off of an existing key, it's not that hard. I believe this vendor can do it all. I would encourage you to reach out to them for confirmation of everything.

The hard part is to pair up the new key to the car once you get it. This is a software procedure (through the diagnostic port) that can be done by a dealer, or some locksmiths. Maybe if you have a relationship with a local car business, they might tell you who they go to for key problems. These are typically mobile vendors that perform these services on location, off of a van, for a fee.

Best of luck, keep us posted.

 

Good article here:

How To Decode Your Jaguar Tibbe Key And Find Your Tibbe Key Code - Car Locks and Keys

 

You are all amazing. And I thank you very much indeed ! Got the TIBBE code by this very helpful article of Diddion . fmertz , thanks a lot ! And Jeremy, yes, I think as well that the problem is not just the key. What you wrote has to do with the key transponder module ? The one responsible for immobilizing ? Or something else ?

 

Cpt.NKT...Whatever you do, make sure to have ALL the KEYS with you when you take the Car to the Dealer or to the Guy in the Truck! They will need all of them...if you want them all programed! Be sure you don't forget the Valet Key......Same applies to you Key Fobs, if you need to program them! Be sure to have ALL of THEM with you!

Billy Clyde in Houston

 

Boy..... do I feel sheepish!! lol I have had my car at a dealership and they charged me over 1400. For two keys and the remotes! I've got the remotes to work , something the dealership didn't do after 2 1/2 mths! But the key won't work still they told me I have to take it to another dealer or pay them 135.00 an hr to let the technition figure out how to program the key!! I said nope bring it back home and that's where it's at still in driveway! But my question is .... if I buy a US Newest V33.02 Diagnostic Tool Universal SBB Car Key programer Transponder on eBay can this program the key??

 

[QUOTE=jeremys;1729874]Not sure what your asking, the 4digit security code was basicly to unlock the radio after battery replacement but most of the threads on that topic say that radio usually does not require it. Are you thinking that the code can be used to calibrate the chip in the key because it can't needs a dealer or someone with special software to program the tibbe key
Funny thing I just got a spare cut and am going to dealer next week to have it programed.
Please give more info to the forum[/QUOT
I'm so confused now more than ever!! Hopefully I can find the rite software! Don't have any confidence in the dealerships roynf here

 

There are some differences between the security arrangements for the X100 range depending on which market they are for - UK / Europe US / Japan etc.
However, I believe the following to be true :

The remote "fob" can be programmed as a DIY job - it can be a bit hit-and-miss, but there are plenty of instructions here and elsewhere.
There are two "parts" to the actual Tibbe key - the way it is cut, and the internal transponder. (Some early US cars don't have one I believe but I have no further information) Pretty much any locksmith can cut a key which will fit the car providing you have the Tibbe code or another key to copy. The green (valet) key is identical to the "normal" key except for the tip, which can be modified to make it into a fully functioning "black" key.

The car is programmed to the transponder in the key - not vice versa - and requires Jaguar or other specialist hardware / software to achieve. It is NOT a diy option.
I believe the default maximum is 5 different keys. So - you buy a new key with a transponder and then take key and car to a Jaguar dealership or other specialist who can then programme your car to that new key.

There is another option which only works if you already have a good key - which is to get an exact clone. The car doesn't know you have two identical keys - it just recognises the same key each time whichever you use (if you see what I mean). This can be a cheaper option, and here in the UK there are many companies who can do this - either in person or even by mail order providing you can send them the "good" key you have.

What I find odd with your situation is that one key works, and one is sometimes faulty. That's not a common problem and I'm not sure whether it points to a faulty transponder, a faulty security "pick-up" coil around the ignition barrel, or whether it could be a software glitch in the security module.

The radio code is a totally different issue - it isn't that common in the US I think but in the UK and Europe it is a four figure code that you have to punch into the radio head-unit to get it to work. It doesn't affect any other aspects of the car's security.

 

DevonDavid - Interested to hear your point about the valet key. Do you have information on how to modify it to become a fully functional 'black' key? Could be useful when, as I am certain to do one day, I disconnect the battery and close the trunk with my set of keys within.

 

Here you go, the valet key has a "full" tip and the normal black key has the sides relieved.

 

Thanks, Norri. So a bit of careful grinding should do the trick. My digital calipers will come in handy!

 

Chaps, thanks a lot. Oh I wish it's going to be the key, and not a key transponder module or something with the ECM . Anyway, part ( the passenger lock ) will arrive on Monday, and installed same day. By Monday night I'll provide further details. Indeed the vallet green key shows a different cut from the black one. I'll provide info for that as well. ( if the TIBBE is the same ) .
Latest info I received from the dealer is that despite the loss of TIBBE code, they can provide with the VIN number. Despite how old is the car . 1990s+ models .
fmertz , provided an amazing tip . I own a BMW Z4 , and I have a very close friend in there. I asked him , how they deal with these problems, and he told me the guy that can fix and programm even the key for a BENTLEY . Of course with a fracture of the dealership cost .
Enjoy the weekend chaps ! I'll keep you informed soon.

 

David, thanks for the valuable infos. That's why I believe it's not the key and must be something else. At the moment I'm in search. I guess the second thing I'll do is to start with the key transponder module which is responsible for the immobilizer and then maybe with the ECM ...FINGERS CROSSED

 

Yes, good luck with this. My own experience is that within the range of potential causes, it is always the most expensive that is the culprit!

 

Have you tried a Hard Reset? I know it's a simple thing , but like a computer, sometimes a simple reboot solves the problem. If you search Hard Reser\t. It is really easy to do.

 

Rick, thanks. Unfortunately that was the first thing I tried . Didn't solve the problem. Battery is brand new as well .

 

Folks that have relied on the dealer for a key based on the VIN have often received keys that did not work. Keep in mind that there is nothing secret in a tibbe code. If you can look at the key, you can determine the code. I am sure these online vendors can tell you the tibbe code based on a good quality picture. It's not a secret pin.

Best of luck, keep us posted.