Cerb alarm problem

[TvrJohn]

Alarm will not respond to blipper, cahnged the batteries in it to no affect
Immobiliser still works, but cannot lock the car

Any suggestions to my solution ?

[StefT]

Try disconnecting and reconnecting the battery? Resolved all my former alarm problems.

[RUSSELLM]

Does the car think one of it's doors/boot is open ? Possibly a faulty switch.

That said, mine gives a warning bleep, when you try to carry out a "bad set".

But there'll be Cerbs out there with missing/faulty sirens, so you may not know.

[TvrJohn]

Tried the disconnect and reconnect of the battery, and it worked
THANKS folks