Programmed a new remote that functions as it should but the physical key itself will not start the car.

 

The key(s) and remote(s) must be programmed together or the vehicle will not recognise them. This can be performed by a competent locksmith or some Jaguar specialists.

 

As above.

The chip within the key that the security system reads is a separate item from the electronics that are operated by the buttons on the fob

This chip must be programmed by a dealer or a locksmith with the proper computer equipment.

PS welcome to the forum Ron.

EDIT----The following info was previously posted on here in 2011 by xjr guy.

There is no way to enter key program mode on an X-Type with out the Jaguar diagnostic equipment. A manual programming procedure is available, but it can only be utilized IF you already have TWO properly programmed keys available. The manual procedure is as follows:

To enter the programming process you need all the customer’s keys (minimum of 2). If there is only one available,
you can only add keys using WDS. [or IDS/SDD of course]
• Insert first key, turn to Run (Position II) for a maximum of 5 seconds, turn to Off, and remove key.
• Within 10 seconds of removing the first key, insert the second key, turn to Run for a maximum of 5 seconds,
turn to Off, and remove the key.
• To program the third key, insert and turn to Run within 20 seconds of removing the second key, leave the key
in the run position and allow the PATS LED to prove out (solid for 3 seconds); this procedure will confirm successful
storage.
For programming subsequent keys – 8 in total:, you will need to have turned 2 valid keys to Run and to Off as above
prior to programming the fourth and fifth keys, and so on.You can use any 2 valid keys.
To program the fourth key, follow the sequence as above.
• After removing the third key, insert key 1 or 2 and turn through Run and back to Off, then remove.
• Insert the fourth key, turn through Run and back to Off and remove.
To program the fifth key:
• After removing the fourth key, insert key 1, 2 or 3 and turn through Run to Off and remove.
This process can be repeated until a maximum of 8 keys have been programmed.
NOTE: If the time scale is not adhered to, the process will terminate and you will need to start the process
again (a DTC may also be logged).

 

What about s type

 

I hate to be intrusive on the post, but I feel like I am experiencing a very similar issue at the moment with my x type.

Fairly often throughout the 3 days since the first incident of it, when the key is turned fully it won't crank and I will get a "security failed" message.

It has been as easy as taking the key out and putting it back in to make the car start.

I'm worried for long term though and I would like to get rid of the issue all together. So I've been thinking of taking it to the dealer and have them reprogram my current key to the ecu and see if that works.

I bought the car with an aftermarket key (it was just a key, not oem style). I ended up getting a separate aftermarket fob just to make my life easier.

Is taking it to the dealer a realistic solution? Or maybe can I handle it myself?

 

One option, may be the battery is getting weak. Search this forum for procedures.

 

Try the correct forum