A few days ago I locked my car and it set the alarm off, then when I next used it my left indicator started flashing rapidly, on the instrument panel as well, but the front left indicator was not working. On occasion the indicator will return to normal. The open door warning light is now dimly illuminated at all times which comes on properly with all doors apart from the passengers door. When locking the car the lights no longer flash as normal and the alarm is going off at random times now. What is the problem?