Terracan remote locking problem,

dear friend-when you use the remote it activates the alarm,and when u use the key it only activate the central locking,please open the bonnet and look for the bonnet switch,if you find the switch look where the bonnet and switch come together there should should be a rubber grommet that will push the switch when closing the bonnet.if it is not there the alarm will not work,do the same with the back door.