First off I have a 2004 Jaguar XJ 8(in the process of changing my profile info)
key FOB will lock all the doors, however it will not unlock anything. The turning of the key in the
door unlocks as it should. One turn unlocks the drivers door, two turns unlocks other doors. It does not un-
lock the trunk. The key is the only way to open the trunk. The inside button does not unlock the trunk either.
Any help/guidance would be greatly appreciated. I did a search however did not find this exact issue.
Thanks.
Larney

 

I suggest that you get the vehicle scanned and post results