Like others have posted unless you put power to a light it should not come on. If it comes on when you start the car and foot is not on the brake the relay should be the issue, unless you plugged the wiper plugs to the headlight assembly on accident..... all cars have the wiper plug , withor without the wiper. They are just long enough and the same holes as the headlight plug. That will allow powerto the light when starting and will allow indicator to come on, I did this once when repairing my headlight doors.