Sorry to be unclear.

It's when I lock the car with the FOB the siren starts sounding. I have no lights flashing more than the green turn signal indicators on the instrument. The doors and tailgate doesn't lock either.

I think they did some modifications to this car to adapt it to the Swedish market. So only siren sounds even earlier when it worked. Before it got to never work it was during a 6 months period that it sometimes worked and sometimes not (to activate alarm and lock the car).

The siren isn't the original, some standard aftermarket and some modifications of the cars electronics to have it to work.

When I lock the car by the key it only lock the driver door, nothing more happens. Even erlier when the alarm worked it was still only the driver doors that locked when using the key in the door. But doesn't matter for me.

But I think the problem is going to be solved know when I found the liftgate sensor not giving correct signal as it should.

By the way, on a car that isn't modified in any way. Is it possible to lock the car with FOB or key in the door without activate the theft alarm, only locking the car ? And how to do that ?

Lars