To resync a key fob when the battery has been disconnected or gone flat:
With all the doors and bonnet closed. Press the lock button on the remote once, put the key in the lock and turn it to the left and back to center.
The central locking may actuate. If not:
Press the unlock button once and turn the key to the right and back to center.
(Don’t keep the button pressed, it is just one quick press as if you were normally operating the fob)
The fob should now be synchronised.
If it doesn’t synchronise then the becm may have alarmed and locked itself and you will need the Eka code.
Sometimes the fob may not work or the correct Eka code cannot be entered either because of a lock or wiring fault.
The becm can cause this when the battery starts going flat.
Fingers crossed your Eka works ok. If you do not have it, telephone the dealer. If you have any problems pm me your chassis number and I will get the code for you.