Humm, might be an alarm problem. I had a similar thing happen to me. It was a condensation problem in the printed circuit above the courtesy light. I was told, if the vehicle was doing low mileage, condensation builds up in the head lining above the interior light and drips down into the alarm circuit. That info came from Chrysler. Got a second hand unit from a breakers. Did the job. But my indicators on and the siren was sounding. Hope this is of help ??

Jon