A couple of weeks ago I returned from a camping trip and parked my Disco in the garage but didn't shut the tailgate properly. When I pressed the lock on the keyfob the horn tooted once. I couldn't be bothered pulling the car forward to have another go at shutting the door properly (my garage is a bit of a squeeze) so I left it.
My suspicion is that leaving the door not shut properly for as long as I did upset the alarm or something. It was left for over a week in this state.
I know the keyfob is probably okay as the car didn't respond to my spare keyfob either. Both are in good working order and the LED comes on when the buttons are pressed.
And I'll be changing the EKA to something simple this weekend as three of the four characters in my current EKA are letters.

