I have a 2000 Eclipse GS and periodically my headlights will flash the high beams whenever either the driver's or passenger's door opens. I don't have keyless entry and I've tried disabling the alarm system by turning the key twice to the right when unlocking the car. Nothing stops it. Even when the car is running, if I open the door or if someone gets in/out of the passenger's side, the lights will flash and I have to sit there and wait about three minutes for it to stop. I thought it was a problem with my alarm system until disabling it didn't solve the issue. My only other thought is something interfering with the wiring? Any other ideas would be greatly appreciated.