Vectra Alarm - Deryck Tintagel
The alarm system on my Vectra is informing me of a fault by flashing the dash-mounted LED after the doors have been shut and the keyfob pressed to lock the doors. The manual says that this means that a door, bonnet or boot has been left open, or that there is a fault with the alarm. I have checked all the switches and they appear to be okay. Curiously, this only seems to have happened since I took the battery off to charge (See the thread on the Philips CCR600).

Then after the battery was put back in, the car started the first time but the next morning it refused to start.

Questions:

Is the alarm linked to the immobiliser? I don't think that it is.
Does anybody have any ideas about the fault light? Can I reset the system.

Vectra Alarm - Dynamic Dave
Total shot in the dark; the Vectra Alarm has a separate battery back up. Is the flashing light telling you the battery has failed?
Is the alarm linked to the immobiliser? I don't think that it is.


I think it actually is. I once got in my Vectra and she refused to start, but turned over sweet as a nut. No flashing light on the dash to warn the ignition didn't recognise the key chip. I armed and disarmed the alarm and she started straight away.