Klaus, if you read my thread you would see I said the alarm system was removed before I bought the car. We had know way of knowing the alarm existed and the wires underneath the door jamb were faulty. We checked continuity from the fuse to the pump and it was fine until it heated up too much or shook loose. We bought the car from a reputable dealer as an ex-lease with all service records and an extended 2 year warranty. The leasee must of did this on his own. Seeing how you, yourself did not post any helpful suggestions to my troubles, I find it ironic for your comments.