Jason_S

Chaps, I installed a Cobra alarm with immobiliser and microwave sensor in my Cab last summer, it all works fine..

*except* the factory alarm still arms when I lock the doors with the new alarm remote.

Over the Christmas period, I didn't the drive the car for some time and it ran the battery flat, I expect this is because it's running two alarms.

My question is how do I prevent the factory alarm from being armed when I lock the doors?

Another benefit for me would be that if the new alarm is triggered, it stops after 30 seconds.. the factory alarm will just blare away for ever..

I apreciate this is a sensitive question, so e-mail me if you have a solution that you don't want made public.

Cheers..

Jason_S

Looks like I get the alarm supply a negative pulse to the central locking pump to lock the doors, then a positive pulse via a relay to unlock..

At the moment it's arming the factory alarm which then locks the car..