door open light goes on and off and alarm off and on

Hi,

One of the door ajar switches may be sticking. Here is a link which may be of interest in showing, (if you have the correct tools) how to find a) which door switch is causing the problem and b) how to rectify it.

If you haven't got access to the equipment, try spraying the door latches with a rust penetrator (mp40), as per the video and after opening and closing the door a few times see if it frees up the switch. Do one door at a time and see if the problem is gone, by checking the state of your dashboard door open light with the doors closed. If it hasn't gone out, then move onto the next door, hopefully you should finally be able to work out which is the faulty one. If you have done all the doors, including the boot/trunk/tailgate (depends where you are what you call it) and it is still occurring you may have to get an auto electrician to have a look at the problem for you.

https://www.youtube.com/watch?v=bxowpSib...

Hopefully this is of some help.