Mine was doing exactly the same. I will be interested in seeing if replacing the control unit takes care of the problem.

In my car, I have simply unplugged the control unit. There are two boxes side by side in the rear fender-well above the battery. On my car the first one was the door lock controller and the one further back was the alarm.

In answer to your question, I'm not a mechanic, but have an electronics background. It would be good to disconnect the battery while working on this. I noticed that my trusted shop did not disconnect the battery when they assisted me in troubleshooting mine. They just disconnected and reconnected the harnesses at the box... As I said before, I left mine disconnected.

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