Originally Posted by
GraphiteGhost
I can say with 100% accuracy, it sounds like water in the lower trunk/hatch cavity. Check there and hopefully water damage didn't destroy the module there!
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Can you lock all the doors using the fob?
Does the switch on the dash lock all doors?
The alarm issue looks like it was a false alarm.
It looks like the pump in the trunk is damaged maybe it will dry out, normally they are ruined.
If you have to get a pump, get one with all the plugs with it as your plugs may be ruined by corrosion.
These pumps are not cheap.