Many thanks for your reply Ratty.
I am going to try your suggestion out tomorrow. I would point out though that the alarm siren is sounding even though the alarm system has not been switched on !. Also the only way I can stop it is by disconnecting the main vehicle battery.
I will let you know...
I have a 1998 Disco 300Tdi ES with the 2 button remote key Fob.
I don't normally lock vehicle or put alarm on at night as we live in a remote area. About 3 nights ago the alarm siren went off at 3 am. and the only way I could stop it was disconnect battery.
Next morning I reconnected battery and...